Acoustics :
In this area our aim is two-folds. Firstly, we would like to find out the eigen-spectrum of jets. Secondly, we would use these information to calibrate the DNS of the jet. Our eventual aim is to calculate the emitted noise from the jet. We have obtained spectrum of plane Bickley jet with respect to symmetric and anti-symmetric disturbance fields. We have also calculated the spectrum for the round Bickley jet for symmetric disturbance field. These have been obtained using Compound Matrix Method (CMM). The information of the spectrum is necessary for DNS of jets at relevant Reynolds numbers. In the following paper, the major issues of setting up of algorithms for DNS and acoustics is explored. These are discussed in the following paper (Published in Jour. Scientific Computing, 2005):
Jet DNS :
The paper presented at 3rd MIT Conference on Computational Fluid and Solid Mechanics, 14-17 June, 2005 (MIT, USA):