Publications

Publications

Each journal article has a short summary and keywords, and links to the publisher’s page; click a keyword to see related papers. Full and current lists are also on Google Scholar and ORCID. Each entry links to the paper.

Background: filtered density function temperature contours across a shock

  • 2026A. Pawar, S. De. Catalytic valorization of petroleum-derived high-moisture oily sludge using a fixed bed pyrolyzer. Energy (accepted).Find paper ↗Catalytic pyrolysis of high-moisture refinery oily sludge in a fixed bed pyrolyzer to recover oil and other useful products.
  • 2026S. K. Gautam, G. Singh, S. De, A. R. Masri. A sequential VOF-LPT and two-phase MMC-LES framework for dense spray flames. Proceedings of the Combustion Institute (accepted).Find paper ↗Couples atomization-resolving VOF simulations with Lagrangian particle tracking and two-phase MMC-LES to simulate dense spray flames.
  • 2026A. K. Gupta, S. K. Soni, K. Yadav, Y. N. Mishra, S. De. Quantitative SLIPI-PIV-PDPA analysis of flow-blurring sprays in a swirling coflowing air stream. Experimental Thermal and Fluid Science 179, 111821.Publisher ↗Quantitative laser and phase-Doppler measurements of flow-blurring sprays issuing into a swirling coflowing air stream.
  • 2026D. N. Chhatrodiya, S. Kumar, S. De, S. Omar. Resistance-based transmission-line model for O2 flux prediction in Gd0.1Ce0.9O2-δ–SrFe0.9Ti0.1O3-δ composite membranes. Solid State Ionics 434.Publisher ↗A resistance-based transmission-line model that predicts oxygen flux through GDC–SFTO dual-phase composite membranes.
  • 2026N. Huda, K. Yadav, A. K. Gupta, S. De. Effects of premixed and partially premixed hydrogen addition on lean CNG–air swirl flames near blowout. International Journal of Hydrogen Energy 242, 155312.Publisher ↗Compares premixed and partially premixed hydrogen addition on the stability of lean CNG–air swirl flames near blowout.
  • 2026G. S. Walia, S. Galindo-Lopez, Z. Cai, B. Thornber, S. De, M. J. Cleary. A consistent, fully-coupled LES-FDF model for shock-turbulence-flame interactions with a filtered Rankine–Hugoniot energy closure. Combustion and Flame 288, 114975.Publisher ↗A fully coupled LES-FDF model with a filtered Rankine–Hugoniot energy closure for shock–turbulence–flame interactions.
  • 2025S. K. Soni, A. Gupta, K. Yadav, Y. N. Mishra, S. De. Planar laser-based measurements of droplet size, volume fraction, and velocity in flow-blurring sprays. Experiments in Fluids 66(8), 159.Publisher ↗Planar laser measurements of droplet size, liquid volume fraction and velocity in flow-blurring sprays.
  • 2024G. S. Walia, S. Galindo-Lopez, M. J. Cleary, S. De. A filtered Rankine–Hugoniot method for consistent stochastic particle LES-FDF modelling of combustion in high-speed flows. Combustion and Flame 269, 113680.Publisher ↗A filtered Rankine–Hugoniot method that keeps stochastic-particle LES-FDF consistent across shocks in high-speed reacting flows.
  • 2024A. K. Pal, K. C. Sahu, S. De, G. Biswas. Collision of two drops moving in the same direction. Physics of Fluids 36(1).Publisher ↗Numerical study of two drops moving in the same direction as they collide and interact.
  • 2024S. K. Ghai, R. Gupta, S. De. Effects of partial premixing and coflow temperature on flame stabilization of lifted jet flames of dimethyl ether in a vitiated coflow based on stochastic multiple mapping conditioning approach. Fluids 9(6), 125.Publisher ↗Stochastic MMC simulations of how partial premixing and coflow temperature affect the stabilization of lifted DME jet flames in a vitiated coflow.
  • 2023E. Sharma, S. De. MMC-LES of spray combustion: Analysis of mixing timescales and flame structure. Combustion and Flame 251, 112708.Publisher ↗Analysis of mixing timescales and flame structure in MMC-LES of spray flames.
  • 2022P. Breda, E. Sharma, S. De, M. J. Cleary, M. Pfitzner. Coupling the multiple mapping conditioning mixing model with reaction-diffusion databases in LES of methane/air flames. Combustion Science and Technology 195(2), 351–378.Publisher ↗Couples the MMC mixing model with reaction–diffusion databases for LES of methane/air flames.
  • 2022R. Singh, A. Pal, S. De. Buoyancy effects on film boiling heat transfer from a sphere at low velocities. Journal of Fluid Mechanics 943, A5.Find paper ↗Simulations of how buoyancy affects film boiling heat transfer from a sphere at low flow velocities.
  • 2022E. Sharma, S. De, M. J. Cleary. A fully dynamic mixing time-scale model for the sparse Lagrangian multiple mapping conditioning approach. Combustion and Flame 238, 111872.Publisher ↗A dynamic mixing timescale model (dyn-aISO) for sparse-Lagrangian MMC that captures local extinction and re-ignition in the Sandia flame series.
  • 2022S. Gupta, S. De. An experimental investigation of high-ash coal gasification in a pilot-scale bubbling fluidized bed reactor. Energy 244, 122868.Publisher ↗Pilot-scale air and air–steam gasification of Indian coal with more than 45% ash in a bubbling fluidized bed.
  • 2022S. Gupta, S. De, C. Loha, M. Karmakar. Effects of drag and subgrid-scale turbulence modeling on gas–solid hydrodynamics of a pilot-scale circulating fluidized bed. Chemical Engineering Science 248, 117093.Publisher ↗Full-loop 3D simulations that assess drag and subgrid turbulence models against a pilot-scale circulating fluidized bed.
  • 2021S. Gupta, S. De. Investigation of hydrodynamics and segregation characteristics in a dual fluidized bed using the binary mixture of sand and high-ash coal. Advanced Powder Technology 32(8), 2690–2702.Publisher ↗Hydrodynamics and segregation of sand–high-ash coal mixtures in a dual fluidized bed.
  • 2021S. Gupta, S. De. Investigation of cold flow hydrodynamics in a dual fluidized bed for gasification of high-ash coal. Powder Technology 384, 564.Publisher ↗Cold-flow study of a dual fluidized bed designed for high-ash coal gasification.
  • 2021S. Gupta, S. Choudhary, S. Kumar, S. De. Large eddy simulation of biomass gasification in a bubbling fluidized bed based on the multiphase particle-in-cell method. Renewable Energy 163, 1455–1466.Publisher ↗LES with the multiphase particle-in-cell method for rice husk gasification in a bubbling fluidized bed, validated against experiments.
  • 2021S. Gupta, S. De. Numerical investigation of cold flow hydrodynamics in an internally circulating dual fluidized bed for coal gasification. Particulate Science and Technology 39(4), 401–414.Publisher ↗Simulations of cold-flow hydrodynamics in an internally circulating dual fluidized bed for coal gasification.
  • 2020E. Sharma, S. De, M. J. Cleary. LES of a lifted methanol spray flame series using the sparse-Lagrangian MMC approach. Proceedings of the Combustion Institute 38(2), 3399–3407.Publisher ↗Sparse-Lagrangian MMC-LES of a lifted methanol spray flame series.
  • 2019S. K. Ghai, S. De. Numerical investigation of flow and scalar fields of piloted, partially-premixed dimethyl ether/air jet flames using stochastic multiple mapping conditioning approach. Combustion and Flame 208, 480–491.Publisher ↗Stochastic MMC predictions of flow and scalar fields in piloted, partially premixed DME/air jet flames.
  • 2019E. Sharma, S. De. Large eddy simulation-based turbulent combustion models for reactive sprays: Recent advances and future challenges. Journal of the Indian Institute of Science 99(1), 25–41.Publisher ↗Review of LES-based combustion models for reactive sprays and the challenges ahead.
  • 2019S. P. Diwanji, A. Surti, S. De. Development of one-dimensional turbomachinery meanline solver with physics-based detailed loss models. Journal of Energy and Environmental Sustainability 8, 28–34.Publisher ↗A one-dimensional meanline solver for turbomachinery with physics-based loss models.
  • 2019S. K. Ghai, S. De. Numerical investigation of auto-igniting turbulent lifted CH4/air jet diffusion flames in a vitiated co-flow using a RANS based stochastic multiple mapping conditioning approach. Combustion and Flame 203, 362–374.Publisher ↗RANS-based stochastic MMC simulations of auto-igniting lifted CH4/air jet flames in a vitiated coflow.
  • 2019S. K. Ghai, S. De. Numerical modelling of turbulent premixed combustion using RANS based stochastic multiple mapping conditioning approach. Proceedings of the Combustion Institute 37, 2519–2526.Publisher ↗Extends RANS-based stochastic MMC to turbulent premixed combustion.
  • 2019S. K. Ghai, S. De, A. Kronenburg. Numerical simulations of turbulent lifted jet diffusion flames in a vitiated coflow using stochastic multiple mapping conditioning approach. Proceedings of the Combustion Institute 37, 2199–2206.Publisher ↗Stochastic MMC simulations of turbulent lifted jet diffusion flames in a vitiated coflow.
  • 2016S. De, A. De, A. Jaiswal, A. Dash. Stabilization of lifted hydrogen jet diffusion flame in a vitiated co-flow: effects of jet and coflow velocities, coflow temperature and mixing. International Journal of Hydrogen Energy 41, 15026–15042.Publisher ↗How jet and coflow velocities, coflow temperature and mixing control the stabilization of a lifted hydrogen flame in a vitiated coflow.
  • 2016C. Straub, S. De, A. Kronenburg, K. Vogiatzaki. The effect of timescale variation in multiple mapping conditioning mixing of PDF calculations for Sandia Flame series D–F. Combustion Theory and Modelling 20(5), 894–912.Publisher ↗Effect of varying the mixing timescale in MMC-PDF calculations of Sandia flames D–F.
  • 2016V. Suresh Balaji, A. De, S. De. Numerical investigation of swirling hydrogen flames: Effect of swirl and fuel jet in coherent structures. Journal of Energy and Environmental Sustainability 1, 19–33.Find paper ↗Simulations of how swirl and the fuel jet shape coherent structures in swirling hydrogen flames.
  • 2015K. Vogiatzaki, S. Navarro-Martinez, S. De, A. Kronenburg. Mixing modelling framework based on multiple mapping conditioning for the prediction of turbulent flame extinction. Flow, Turbulence and Combustion 95(2), 501–517.Publisher ↗An MMC-based mixing model framework for predicting extinction in turbulent flames.
  • 2013S. De, S. H. Kim. Large eddy simulation of dilute reacting sprays: droplet evaporation and scalar mixing. Combustion and Flame 160(10), 2048–2066.Publisher ↗LES of dilute reacting sprays, focusing on droplet evaporation and scalar mixing.
  • 2011S. De, K. N. Lakshmisha, R. W. Bilger. Modeling of nonreacting and reacting turbulent spray jets using a fully stochastic separated flow approach. Combustion and Flame 158(10), 1992–2008.Publisher ↗A fully stochastic separated-flow approach for nonreacting and reacting turbulent spray jets.
  • 2009S. De, K. N. Lakshmisha. Simulations of evaporating spray jet in a uniform co-flowing turbulent air stream. International Journal of Spray and Combustion Dynamics 1(2), 169–198.Publisher ↗Simulations of an evaporating spray jet in a uniform co-flowing turbulent air stream.
  • 2009S. S. Patwardhan, S. De, K. N. Lakshmisha, B. N. Raghunandan. CMC simulations of lifted turbulent jet flame in a vitiated coflow. Proceedings of the Combustion Institute 32, 1705–1712.Publisher ↗Conditional moment closure simulations of a lifted turbulent jet flame in a vitiated coflow.
  • 2009S. De, K. Nagendra, K. N. Lakshmisha. Simulation of laminar flow in a three-dimensional lid-driven cavity by lattice Boltzmann method. International Journal of Numerical Methods for Heat and Fluid Flow 19(6), 790–815.Publisher ↗Lattice Boltzmann simulation of laminar flow in a three-dimensional lid-driven cavity.
  • 2006K. Arul Prakash, S. De, B. V. Rathish Kumar, G. Biswas. A SUPG-finite element study of an ADSS. Finite Elements in Analysis and Design 42, 1123–1136.Find paper ↗A streamline-upwind Petrov–Galerkin finite element study of an ADSS.