Tapan K Sengupta

High Performance Computing Laboratory

More detailed information on books published, HPCL and courses etc., visit: http://spectral.iitk.ac.in/hpcl/?q=node

Plenary Talk and other papers presented by HPCL team members at Fifth MIT conference on Advances in CFD (17th to 19th June, 2009)

A summer course was held on INSTABILITY and TRANSITION (2008) at Udine, ITALY - the monograph is published by Springer-Wien & New York (2010).

^*New A course on Advanced Computing in Engineering and Sciences during 5-9 October 2010 at IIT Kanpur. Information in IITK website (courses) and at http://spectral.iitk.ac.in

Personal Profile Experience International Collaborations Recent Major Publications Book & Review Journal Paper Citation-1 Journal Paper Citation-2 Citation in Text Book of our work on Robins-Magnus Effect

Prof. Tapan K. Sengupta
Department of Aerospace Engineering
Indian Institute of Technology, Kanpur -208016

Phone : +91-(512)-2597945 / 2597253
Fax : +91-(512)-2597561
Email : tksen@iitk.ac.in
Additional Email Address to be used for safe delivery of message: tapansg@gmail.com

About us

High Performance Computing Laboratory (CFD Lab earlier) at the Aerospace Engineering Department of I.I.T. Kanpur - started by Prof. Tapan K Sengupta, has been an active place of research right from its inception in 1990. The emphasis of research is on developing high accuracy computing methods to aid in bridging the gap between theoretical and computational fluid dynamics and heat transfer.

Our main research interests are highlighted with references provided in the publication list following "Research Areas".

Research Areas

Transition & Turbulence ^[A1]

Receptivity of Shear Layer: TS waves and Bypass Transition ^{[E3], [B4], [C2], [B34], [B35], [B36]}
Receptivity to Localized Excitation (acoustic, vortical & entropic sources): Streamwise & Crossflow Instability
Vortex-induced instability/ bypass Transition ^{[D3], [E18], [}^{B16], [B17], [B25], [F9], [F10]}

Leading Edge Contamination of Sweptback Wings ^{[B22], [B27]}

Jets, Acoustics & Instabilities ^{[B30], [E27], [B18]}

Free Stream Turbulence Effects ^{[E14], [B13]}

NLF Airfoil Analysis & Design for Bypass Transition

Transitional Flow Modeling - including FST effects ^[B50]

Receptivity - Supersonic Flows ^{[B38], [B23]}

Instabilities of mixed convection flows ^[B34,B40]

Turbulence Management ^{[B1], [B2], [C1], [F1] - [F5]}

Unsteady Aerodynamics

Acceleration/ Deceleration effects ^{[B42], [E10], [E20]}

Aerodynamics of projectiles
Low Reynolds number flight & Micro-Air Vehicle ^{[B32], [E28]}

High angle of attack aerodynamics & non-linear dynamics (Chaos & POD analysis) ^{[B13], [B25], [B17], [C4]}

Bluff Body Flows

Flow dynamics: vortex shedding ^{[B5]- [B7], [B28], [C3], [E6], [E12], [E19], [F7]}
Robins-Magnus Effect ^{[B9], [B19], [B26], [E12], [E8], [E15]}

Nonlinear instability and Hopf bifurcation studies

Flow control

Bluff Body Flow Control by rotary oscillation^{[B37], [B52], [E26], [C4]}

Suppression of vortex shedding by control cylinder in near-wake^[B39]

Separation/ Transition control by plasma actuation for flow over airfoil

CFD and Numerical Methods for DNS and LES/ DES ^[A2]

Spatial Filters for LES/DES^[B48]

CCD Schemes: New developments for DNS ^{[B47], [B49]}

Reduced Order Modeling and POD^{[B25], [B39], [B42], [B51]}

PUBLICATIONS & REPRESENTATION

AUTHORSHIP OF BOOK(s)

^[A1] "Instabilities of Flows: With and Without Heat Transfer and Chemical Reaction (2010) Written and edited by T. K. Sengupta and Thierry Poinsot (CISM Lecture Series and Notes 517) published by Springer Wien-New York.

^[A2] "Fundamentals of CFD" (2004) published by Universities Press, Hyderabad, India.

^[A3] Contributed two chapters on: Compressible flows and Computation of transitional flows in "Computational Fluid Flow and Heat Transfer", an IIT Kanpur Series of Advanced Texts, Narosa Publishers (1995, 2003).

^[A4] Fourth Edition of FUNDAMENTALS OF AERODYNAMICS by John D. Anderson is being launched by Tata McGraw Hill in INDIA and this has been extensively edited and an additional chapter on Aerodynamic Research in India is written by Prof. T. K. Sengupta. (In press, 2010).

PAPERS IN REFEREED JOURNALS

^[B1]Calculation of turbulent boundary layer over moving wavy surface - Sengupta T.K. and Lekoudis S.G.; AIAA J., 23 (4), (1985)

^[B2]Two Dimensional turbulent boundary layers over rigid and moving swept wavy surfaces - Lekoudis S.G. and Sengupta T.K.; Physics of Fluid, vol. 29, no. 4 (1986)

^[B3]Solution of the Orr - Sommerfeld equation for high wave numbers - Sengupta T.K.; Computers and Fluids, vol. 21, no. 2, (1992)

^[B4]Generation of Tollmien - Schlichting waves by harmonic excitation - Sengupta T.K, M. Ballav and S. Nijhawan.; Physics of Fluids A, vol. 6, no.3, (1994)

^[B5] Flow past an impulsively started circular cylinder at high Reynolds number – Sengupta T.K. and Sengupta R.; Computational Mechanics, vol. 14, no. 4, (1994)

^[B6] Onset of asymmetry: Flow past circular and elliptic cylinders – Nair M.T. and Sengupta T.K.; Int. J. of Num. Meth. In Fluids, vol. 23, no. 12, pp 1327-1345, (1996)

^[B7] Unsteady flow past elliptic cylinder - Nair M.T. and Sengupta T.K.; J. Fluids and Structures. 11, 555-595 (1997)

^[B8] Boundary layer excited by low frequency disturbances- Klebanoff mode – Sengupta T.K, Nair M.T. and Rana V.; J. Fluids and Structures. 11,845-953 (1997).

^[B9] Flow past rotating cylinders at high Reynolds numbers using higher order upwind scheme – Nair M.T., Sengupta T.K. and Chauhan U.S.; Computers and Fluids. 27(1), 47-70 (1998).

^[B10] Orthogonal Grid Generation for Navier– Stokes Computations – Nair M.T. and Sengupta T.K.; Int. J. of Numerical Methods in Fluids. 28, 215-224 (1998).

^[B11] Associate Center for CFD at IIT Kanpur – Sengupta T.K. and Mittal S.; J. of Aero. Soc. of India, 50(4), 220-228 (1998).

^[B12] Upwind schemes and large eddy simulation - Sengupta T.K., & Nair M.T.; Int. J. Numer. Meth. Fluids 31, 879-889. (1999).

^[B13] Effect of free-stream turbulence on flow over airfoil at high incidences - Sengupta, T.K., De, S. & Gupta, K.; J. Fluids & Structures, 15(5), 671-690 (2001).

^[B14] Spectral analysis of flux-vector splitting finite volume methods - Sengupta, T.K., Sridar, D., Sarkar, S.K. & De, S.; Int. J. Numerical Methods for Fluids. 37(2), 149-174 (2001).

^[B15] A Taylor vortex photocatalytic reactor for water purification - Sengupta, T.K., Kabir, M.F. & Ray A. K.; Ind. Eng. Chem. Res. 40, 5268-5281 (2001).

^[B16] By-pass mechanism of transition to turbulence - Sengupta, T.K., Chattopadhyay, M., Wang, Z.Y. & Yeo, K.S.; J. Fluids & Structures. 16(1), 15-29 (2002).

^[B17] Vortex - induced instability of incompressible wall - bounded shear layer - Sengupta T.K., De, S., and Sarkar, S.; J. Fluid Mech. 493, 277-286 (2003).

^[B18] Analysis of central and upwind compact schemes - Sengupta T.K., Ganerwal G., and De S.; J. Comp. Phys. 192(2), 677-694 (2003).

^[B19] Temporal flow instability for Robins - Magnus effect at high rotation rates – Sengupta T.K., Kasliwal, A., De, S. & Nair. M.; J. Fluids & Structures 17, 941-953 (2003).

^[B20] A visual study of vortex-induced instability on a flat plate laminar boundary layer. –Lim. T.T., Sengupta T.K. & Chattopadhyay. Experiments in Fluids, vol. 37, pp 47-55 (2004).

^[B21] A comparative study of time advancement methods for solving Navier-Stokes equations – Sengupta, T.K. & Dipankar, A.; J. Scientific Computing 21(2), 225-250 (2004).

^[B22] Computations of leading - edge contamination – Sengupta, T.K., Chaturvedi, V., Kumar, P. & De, S.; Computers & Fluids, 33, 927-951 (2004).

^[B23] High accuracy compact schemes and Gibbs' phenomenon - Sengupta, T.K., Ganeriwal, G. & Dipankar, A.; J. Scientific Computing, 21(3), 253-268 (2004).

^[B24] Navier - Stokes solution by new compact scheme for incompressible flows – Sengupta, T.K., Guntaka, A. & Dey, S.; J. Scientific Computing, 21(3), 269-282 (2004).

^[B25] Proper orthogonal decomposition of direct numerical simulation data of by-pass transition – Sengupta, T.K. & Dey, S.; Computers & Structures, 82 (31-32), 2693-2703 (2004).

^[B26] Robins - Magnus Effect: A continuing saga - Sengupta, T.K. & Srikanth B. Talla, Current Science. Vol. 86, no. 7 April (2004).

^[B27] Subcritical instability on the attachment - line of an infinite - swept wing – Sengupta, T.K. & Dipankar, A.; J. Fluid Mechanics, 529, 147-171 (2005).

^[B28] Flow past a circular cylinder in the vicinity of a plane wall – Dipankar, A.; J. Fluids Struct. 20(3), 403-423 (2005).

^[B29] A new flux - vector splitting compact finite volume scheme – Sengupta, T.K., Jain, R. & Dipankar, A.; J. Computational Physics, Vol. 207, pp. 261-281 (2005).

^[B30] High accuracy schemes for DNS and acoustics – Sengupta, T.K., Sircar, S.K. & Dipankar, A.; Jour. Sci. Comput. Vol. 26(2), 151-193 (2006).

^[B31] Galerkin finite element method for wave problems - Sengupta, T.K., Talla, S. B. & Pradhan, S.; Sadhana Vol. 30(5), 611-623 (2005).

^[B32] An improved method for calculating flow past flapping and hovering airfoils - Sengupta, T.K., Vikas, V. and Johri, A.; Theoretical and Computational Fluid Dynamics Vol. 19(6), pp. 417-440 (2005).

^[B33] Symmetrized compact scheme for receptivity study of 2D transitional channel flow - Dipankar, A. & Sengupta, T.K.; Jour. Comp. Physics Vol. 215(1), pp. 245-273 (2006).

^[B34] Spatial stability for mixed convection boundary layer over a heated horizontal plate - Sengupta, T.K. & Venkatasubbaiah, K.; Studies in Applied Maths Vol. 117, pp 265-298. (2006).

^[B35] Spatio-temporal growth of disturbances in a boundary layer and energy based receptivity analysis - Sengupta, T.K., Kameswara Rao, A. & Venkatasubbaiah, K.; Phys. of Fluids, vol. 18, pp. 094101-1 to 9, (2006).

^[B36] Spatiotemporal growing wave-fronts in spatially stable boundary layers - Sengupta, T.K., Kameswara Rao, A. & Venkatasubbaiah K.; Physical Review Letters vol. 96, pp. 224504-1 to 4 (2006).

^[B37] Control of flow using Genetic Algorithm for a circular cylinder executing Rotary oscillation - Sengupta, T.K., Deb, K. & Talla, S.B.; Computers and Fluids, vol. 36 , pp. 578-600 (2007).

^[B38] A new compact scheme for parallel computing using domain decomposition- Sengupta, T.K., A. Dipankar and A. Kameswara Rao. J. Comp. Physics., vol. 220, pp. 654-677 (2007)

^[B39] Suppression of vortex shedding behind a circular cylinder by another control cylinder, Dipankar, A., Sengupta, T.K., Talla, S.B., J. Fluid Mechanics, Vol.5, 73, pp 171-190 (2007)

^[B40] Non-unique solution for combined convection assisting flow over a vertical plate, K. Venkatasubbaiah, Amrita Mittal, T.K. Sengupta Sadhana, The Indian academy of science, Bangalore, vol. 31, part. 6, pp. 709-719, (2006)

^[B41] Error dynamics: Beyond von Neumann analysis, T.K. Sengupta, A. Dipankar, P. Sagaut, Jour. Comp. Physics Vol. 226, pp. 1211-1218, (2007)

^[B42] Accelerated flow past a symmetric aerofoil: Experiments and computations, T.K. Sengupta, T.T. Lim, Sharanappa V. Sajjan, S. Ganesh, J. Soria, J. Fluid Mechanics Vol. 591, pp. 255-288, (2007)

^[B43] A linear dispersive mechanism for numerical error growth: Spurious caustics, Cl. David,P. Sagaut and T.K. Sengupta, Euro. J. Mechanics B/Fluids Vol. 28, pp. 146-151, (2009)

^[B44] Nonlinear instability of mixed convection flow over a horizontal cylinder, T.K. Sengupta, K Venkatasubbaiah and S.S. Pawar, Acta Mechanica Vol. 201, pp. 197-210, (2008)

^[B45] Mixed convection flow past a vertical plate, K. Venkatasubbaiah and T.K. Sengupta, Int. J. Thermal Sciences Vol. 48 (3), pp. 461-474, (2009)

^[B46] A new combined stable and dispersion relation preserving compact scheme for non-periodic problems, T.K. Sengupta, V. Lakshmanan and V.V.S.N. Vijay, J. Comput. Physics Vol. 228, pp. 3048- 3071, (2009)

^[B47] Nonlinear and nonparallel receptivity of zero-pressure gradient boundary layer, T.K. Sengupta, Swagata Bhaumik, Vikram Singh and Sarvagy Shukl Int. J. Emerging Multidisciplinary Fluid Sciences Vol. 1 (1), pp. 19 -35, (2009)

^[B48] Design and analysis of a new filter for LES and DES, T.K. Sengupta, Y. Bhumkar and V. Lakshmanan Computers and Structures Vol. 87, pp 735- 750 (2009)

^[B49] Further improvement and analysis of CCD scheme: Dissipation dicretization and de-aliasing properties. T.K. Sengupta, V.V.S.N. Vijay and Swagata Bhaumik. J. Comput. Physics Vol. 228, issue 17, pp. 6150- 6168, (2009)

^[B50] Modeling Free-Stream Turbulence based on Wind Tunnel and Flight Data for Instability Studies - T.K. Sengupta, D. Das, P. Mohanamuraly, V.K. Suman and A. Biswas Int. J. Emerging Multidisciplinary Fluid Sciences, vol. 1, Issue:3, Pages: 181-199 (2009)

^[B51] Solving Navier-Stokes equation for flow past cylinders using single-block structured and overset grids, TK Sengupta, V.K. Suman and Neelu Singh, J. Computational Physics, vol. 229(1), pp 178-199 (2010)

^[B52] Drag reduction by rotary oscillation for flow past a circular cylinder -- Y.G. Bhumkar, T.K. Sengupta, Int. J. Emerging Multidisciplinary Fluid Sciences, vol. 1, Issue: 4, Pages: 269-299 (2010)

^[B53] Optimal time advancing dispersion relation preserving schemes. Manoj K. Rajpoot, TK Sengupta and Pravir K. Dutt, J. Computational Physics, vol. 229, pp 3623-3651 (2010)

^[B54] Dynamical system approach to instability of flow past a circular cylinder, T.K. Sengupta, Neelu Singh and V. K. Suman. J. Fluid Mechanics (In press) (2010)

INTERNATIONAL SYMPOSIUM PROCEEDINGS (Invited)
(Some people call it book-chapters!!!)

^[C1] A case for turbulence management by imposed wall excitation for fully developed turbulent flows- A numerical study – Sengupta T.K., Suryanarayana & Selvarajan S. In proc. of IUTAM symp. on "Turbulence Management And Relaminarisation".Springer Verlag, 1987.

^[C2] The generation of disturbances in a boundary layer by wall perturbations: The vibrating ribbon revisited once more.- Gaster M. & Sengupta T.K. In " Instabilities and Turbulence in Engineering Flows".(Eds. D.E. Ashpis, T.B. Gatski and Hirsh R.) Kluwer Academic Publisher. 1993. Also in Symp. Proceeding of NASA Langley workshop on Transition & Instabilities. Springer Verlag, 1991.

^[C3] Dynamics of near wake of circular cylinder at high Reynolds number – Sengupta T.K. and Sengupta R. In proceeding of IUTAM symposium on Bluff Body Wakes, Dynamics and Instabilities. Springer Verlag, 1992.

^[C4] Moving surface separation control for airfoil at high angles of attack - Sengupta T.K.; Gupta V.K. & Gopalan G. In the Proceeding of IUTAM symp. On" Mechanics of Passive and Active Flow Control" held at DLR Gottingen during 7-11 Sept. 1998. Kluwer publication, 1999.

INVITED TALKS

^[D1] Tailoring higher order methods for DNS and LES - Sengupta T.K. & Gupta K. Invited paper at Third Asian Conference on Computational Fluid Dynamics held at Bangalore during 7-11 Dec. 1998.

^[D2] Perspective on DNS and LES - Sengupta T.K. Numerical methods for CFD. At Maison des Universites, Univ. of Paris 6 during 7-10 June 1999.

^[D3] Boundary layer excited by low frequency disturbance – Klebanoff mode.- Sengupta T.K., Nair M.T. & Rana V. International discussion meeting on" Instability & Transition" Organised by Indian Academy of Sciences at Coorg, Nov.20-25^th 1996.

^[D4] High-Accuracy High Performance Computing- Current Status and Future Directions- Sengupta T.K. International HPC-Users Conf. Organised by IISc Bangalore and IIT Delhi, at IISc Bangalore March 2, 2007.

^[D5] CFD at cross-road: Its relation to scientific computing- Sengupta T.K. Invited talk at Dept. of Mech. Engineering, National Univ. of Singapore, October 2003

^[D6] High-Accuracy Computing- A Lecture Series- Sengupta T.K. One week long lectures at Dept. of Mathematics, IISc Bangalore under the auspices of IISc Mathematics Initiative (IMI), April, 2005.

^[D7] Spatio-temporal wave dynamics and signal propagation in fluid dynamical system- Sengupta T.K. Kolloquium Uber Neuere Arbeiten Auf Dem Gebiete Der Mechanik Und Stroemungslehre at Technischen Univ. Vienna, 21 July 2006

^[D8] Natural Laminar Flow Wing Development for Future Aircraft Design: Role of Bypass Transition Tewkesbury Seminar at Mech. Engg. Dept., Univ. of Melbourne, Australia, Dec. 12 2007.

^[D9] Bypass Transition Seminar Presented at DSTO, Fisherman's Bend Melbourne, Australia, Dec. 13 2007.

^[D10] Bypass Transition & q-waves: A new perspective to flow instability and its computations Kolloquium at Mech. Engg. Dept., Technical Univ. of Vienna, Austria, Oct. 1 2008.

^[D11] Direct numerical simulation- progress made and future prospects. Plenary Talk at 5th MIT Conf. on Computational Fluid and Solid Mechanics (Advances in CFD), MIT Massachusetts, USA, June 17 2009.

^[D12] High performance computing in CFD. Invited Talk at Symposium on High Performance Computing in Academia & Beyond at COEP-CDAC Pune, Nov. 14, 2009.

^[D13] High precision computing in CFD and heat transfer. Invited Talk at Symposium on High Performance Computing in Academia & Beyond at BESU-CDAC (Pune), March 4, 2010 at Shibpur (Howrah)

INTERNATIONAL CONFERENCE PROCEEDINGS

^[E1] Orthogonal body fitted grid generation in two dimensions – Sengupta T.K. Sengupta S. In Proc. Of 5^th International conf. On Numerical Methods in Laminar & Turbulent Flows. Pineridge Press. (1987).

^[E2] Numerical simulation of turbulent boundary layers over rigid and deformable surfaces. Sengupta T.K., Suryanarayana G.K. & Selvarajan S. In Proc of 5^th Int. Conf. On Numerical Methods in Laminar & Turbulent Flows. (1987).

^[E3] Impulse response of laminar boundary layer and receptivity – Sengupta T.K. 7^th Int. Conf. On Numerical Methods In Laminar and Turbulent Flows. Pineridge Press (1991).

^[E4] Surface mass transfer: A receptivity mechanism for boundary layers - Sengupta T.K. & Sinha A.P.; In the Proc. Of 6^th Asian Congress of Fluid Mechanics. Singapore (1995).

^[E5] An accurate method of orthogonal grid generation in two dimensions – Nair M.T. & Sengupta T. K.; In Proc. Of 11^th Int. on Numerical Methods in Laminar and Turbulent Flows. Pineridge Press (1995).

^[E6] Flow around elliptic cylinders at moderate Reynolds numbers – Nair M.T. & Sengupta T.K.; In Proc. Of International Conference on Advances in Mechanical Engineering. I.I. Sc. Bangalore (Ed. T.S. Mrithyunjaya) (1995).

^[E7] A new class of waves for Blasius boundary layer – Sengupta T.K. Nair M.T.; In Proc. Of 7^th Asian Congress of Fluid Mechanics (ACFM). Held at IIT. Madras, 8-12 Dec., (1997).

^[E8] Numerical simulation of flow past rotating and translating circular cylinder – Mittal S., Nair M.T. & Sengupta T.K.; In Proc. Of 7^th ACFM held at IIT. Madras, (1997).

^[E9] Klebanoff mode revisited – Sengupta T.K. & Nair M.T.; In Proc. Of 7^th ACFM held at IIT Madras, (1997).

^[E10] Accelerated incompressible flow past airfoils – Sengupta T. K & Nair M.T.; In Proc. Of 7^th ACFM held at IIT Madras, (1997).

^[E11] Flow past rotating elliptic cylinder – Nair M.T. & Sengupta T.K.; In Proc. Of 7^th ACFM held at IIT Madras, (1997).

^[E12] Magnus Effect at high speed ratio- Nair M.T. & Sengupta T.K.; In Proc. of 3^rd Asian CFD Conf. held at Bangalore, during 7-11 Dec. (1998).

^[E13] Tailoring higher order methods for DNS and LES - Sengupta T.K. & Gupta K.; In Proc. of 3^rd Asian CFD Conf. held at Bangalore pp-94-103 (1998).

^[E14] Effect of free-stream turbulence in external aerodynamics - Gupta, K. & Sengupta, T.K.; Proc. of 4^th NCABE Conf. held at Bangalore (1998).

^[E15] Lift generation and limiting mechanism via unsteady flow development for Magnus- Robins effect – Sengupta, T.K., Gupta, K. & Nair M. T.; Proc. 8^th ACFM, China (1999).

^[E16] Flow past oscillating elliptic cylinder- Nair M.T. & Sengupta, T.K.; Proc. 8^th ACFM, China (1999).

^[E17] Receptivity to pulsating vortices - Sengupta, T.K., Wang, Z., Yi Pin L. & Chattopadhyay, M.; Proc. 8^th ACFM, China (1999).

^[E18] Receptivity to convecting vortices - bypass route – Sengupta, T.K., Wang Z., Yeo, K.S. & Chattopadhyay, M.; Proc. 8^th ACFM, China (1999).

^[E19] Highly accurate Navier - Stokes solution for flow past prismatic bodies - Renhai S., Lee, T.S., Low, H.T. & Sengupta, T.K.; Proc. 4^th ACFD Conf, China (2000).

^[E20] Investigation of accelerated flow over an airfoil at an angle of attack using Multigrid Cross Correlation Digital PIV- Soria, J., Lim, T.T., Hou, K.C. & Sengupta, T.K.; Proc. 4^th Int. Symp. on PIV, (2001).

^[E21] Numerical study of accelerated flow past NACA 0015 airfoil - Sengupta, T.K., Keong, N. H., & Lim, T.T.; Proc. 9^th ACFM, Iran (2002).

^[E22] Discretization of Laplacian operator and aliasing error - Sengupta, T.K., Pin, L.Y.; Proc. 9^th ACFM, Iran (2002).

^[E23] Vortex-induced instability: A possible mechanism of clear air turbulence encounters- Sengupta, T.K., Lim, T.T. & Chattopadhyay, M.; Proc. 9^th ACFM, Iran (2002).

^[E24] Proper orthogonal decomposition of bypass transition data - De, S. & Sengupta, T.K.; Proc. 2^nd MIT Conf. Comput. Fluid & Solid Mech. Elsevier (2003).

^[E25] Navier-Stokes solution by new compact schemes for incompressible flows - Sengupta, T.K., Anuradha, G. & De, S.; Proc. 2^nd MIT Conf. Comput. Fluid & Solid Mech. Elsevier (2003).

^[E26] High Accuracy compact scheme and Gibbs’ phenomenon- Sengupta, T.K. & Ganeriwal G.; Proc. 2^nd MIT Conf. Comput. Fluid & Solid Mech., Elsevier (2003).

^[E27] Active control and drag optimization for flow past a cylinder at high Reynolds number using genetic algorithm - Talla, S.B., Deb, K. & Sengupta, T.K.; Proc. 3^rd MIT Conf. Comput. Fluid & Solid Mech., Elsevier (2005).

^[E28] Receptivity of a low Reynolds number Bickley jet to harmonic vortical excitation - Sircar, S.K. & Sengupta, T.K.; Proc. 3^rd MIT Conf. Comput. Fluid & Solid Mech., Elsevier (2005).

^[E29] Computational study of flow over flapping and hovering airfoils using high order compact and filtering schemes - Vikas, V., Sengupta, T.K. & Johri, A.; Proc. ICTACEM 2004. 3^rd Inter. Conf. on Theo. Appl. Comput. & Exptal. Mechanics. IIT Kharagpur, (2004).

^[E30] DNS and spatial stability analysis for mixed convection boundary layer over an isothermal vertical flat plate - K. Venkatasubbaiah, Sengupta, T.K. ; In Proc. of NCFMFP2006: 33^rd National and 3^rd Inter. Conf. on Fluid Mechanics and Fluid Power held at IIT Bombay, 7-9 Dec. (2006).

^[E31] Effects of free-stream turbulence on flows: Modeling and computing- Sengupta, T.K., D. Das & P. Mohanamuraly ; In Proc. of DREAMS-2007 Conf. at GE Bangalore, 12 Mar. (2007)

^[E32] Unsteady airfoil aerodynamics and dynamic stall- S.V. Sajjan & Sengupta, T.K. ; In Proc. of 7th ACFD Conf. at Bangalore, 26-30 Nov. (2007)

^[E33] Study of wake-induced instability in a 2D incompressible channel flow- P.K. Bagade & Sengupta, T.K. ; In Proc. of 7th ACFD Conf. at Bangalore, 26-30 Nov. (2007)

^[E34] Receptivity analysis of hypersonic flow over a cone-cylinder configuration for stationary and time-periodic vortical distrubances- Naresh Kumar, Sengupta, T.K., A. Dipankar & G. Kumaravel ; In Proc. of 7th ACFD Conf. at Bangalore, 26-30 Nov. (2007)

^[E35] Receptivity of high supersonic flow for different levels of acoustic excitations- G. Kumaravel, Sengupta, T.K., N. Kumar & A. Dipankar ; In Proc. of 7th ACFD Conf. at Bangalore, 26-30 Nov. (2007)

^[E36] Measurement of freestream turbulence: Its Modeling and computations- Sengupta, T.K., P. Mohanamuraly, D. Das & V.K. Suman; In Proc. of 16th Australasian Fluid Mechanics Conf. at Gold Coast, Australia, 12 Mar. (2007)

^[E37] Response of a projectile to acoustic and entropic excitation at hypersonic Mach number- Sengupta, T.K., A. Dipankar, N. Kumar & G. Kumaravel ; In Proc. of ICTACEM-2007 Conf. at IIT Kgp., 27-30 Dec. (2007)

^[E38] Interaction between a spanwise convecting vortex and an airfoil- S.V. Sajjan & Sengupta, T.K. ; In Proc. of ICTACEM-2007 Conf. at IIT KGP., 27-30 Dec. (2007)

^[E39] Study of a wake-induced instability in a 2D incompressible channel flow- P.K. Bagade & Sengupta, T.K. ; In Proc. of ICTACEM-2007 Conf. at IIT Kgp., 27-30 Dec. (2007)

^[E40] A new filter designed for LES and DES. - Yogesh Bhumkar, V. Lakshmanan & Sengupta, T.K. ; In Proc. of 5th MIT Conf. on Advances in CFD, 17-19 July (2009) at Boston, USA

UNPUBLISHED PAPER PRESENTED IN INTERNATIONAL CONFERENCES

^[F1] Calculation of turbulent boundary layer over compliant surface – Sengupta T.K. & Lekoudis S.G. Drag Reduction Symposium held at National Academy of Sciences. Washington D.C., (1982).

^[F2] Calculation of turbulent boundary layer over moving wavy surface – Sengupta T.K. & Lekoudies S.G. 16^th AIAA Conf. on Fluids & Plasma. Massachusetts. AIAA paper no AIAA – 83-1670., (1983).

^[F3] Calculation of turbulent boundary layer over compliant surfaces.- Sengupta T.K. & Lekoudies S.G. Annual meeting of American Physical Society. Texas, (1983).

^[F4] Turbulent boundary layer over three dimensional waves.- Sengupta T.K. & Lekoudies S.G.; 17^th AIAA Conf. on Fluids & Plasma. Snowmass, Colorado. Paper no. AIAA – 84-1530, (1984).

^[F5] Turbulence management by active wall for fully developed two dimensional boundary layer.- Sengupta T.K., Surayanarayana G.K. & Selvarajan S.; 19^th AIAA Conf. On Fluid Dynamics, Plasma Dynamics & Laser. Honululu, Hawaai. Paper no. AIAA – 87-1233, (1987).

^[F6] The generation of disturbances in a boundary layer by wall perturbations: The vibrating ribbon revisited once more.- Gaster M. & Sengupta T.K.; In Symp. Proceeding of NASA Langley workshop on Transition & Instabilities. Springer Verlag. (1991).

^[F7] Onset of asymmetry and vortex shedding.- Sengupta T.K. & Sengupta R.; The IMACS International symp. On Mathematical Modeling & Scientific Computing. Bangalore, (1992).

^[F8] Boundary layer excited by low frequency disturbances – Klebanoff mode. – Sengupta T.K., Nair M.T. & Rana V.; International discussion meeting on" Instability & Transition" Organised by Indian Academy of Sciences at Coorg, Nov. 20 –25 (1996).

^[F9] Experimental investigation of bypass transition - Sengupta, T.K., Lim, T.T. & Chattopadhyay, M. Bull. Am.; Phys. Soc. 45:114, APS-DFD meeting, Washington DC (2000).

^[F10] Vortex-induced instability and its effect on PBL - Sengupta, T.K., Lim, T.T. & Chattopadhyay, M. Presented in Scale Interaction and Variabilities of Monsoon (SIVOM) Conf. held at Munnar, India during 6-11 October (2003).

^[F11] Bluff-body flow control by aerodynamic tripping- Sengupta, T.K., & Gaurav Kumar Presented at ASME PVT 2006/ ICPVT-11 Conf. on Flow-Induced Vibration at Vancouver, Canada. July (2006).

^[F12] Spatio-temporal receptivity of boundary-layers by Bromwich contour integral method - Sengupta, T.K., & Kameswara Rao, A. Presented in International Conf. Boundary and Interior Layers (BAIL 2006) held at Univ. of Goettingen, Germany July (2006).

^[F13]Effects of free stream turbulence on flows: Modeling and computing- Sengupta, T.K., Das, D., Pavankumar Mohanamuraly and Suman V.K. Presented at 16th Australasian Fluid Mech. Conf. (16 AFMC) held at Gold Coast, Australia Dec. (2007).

^[F14] Design and analysis of a new filter for LES and DES- Sengupta, T.K., Bhumkar, Y. and Lakshmanan, V. Presented at 5th MIT Conf. Computational Fluid and Solid Mechanics (Advances in CFD), Boston, USA June (2009).

^[F15] Computing Internal and External Flows Undergoing Instability and Bifurcations- V.V.S.N. Vijay, Neelu Singh and Tapan K. Sengupta Presented at 5th MIT conf. Computational Fluid and Solid Mechanics (Advances in CFD) held at Boston, USA June (2009).