Research of Balaji Shankar Venkatachari

 
 

The accompanying comment aptly sums up the field I work in. I specialize in Computational fluid dynamics (CFD), pursuing my doctoral degree, under the advisory of Dr. Gary Cheng. As part of the Computational Simulation Laboratory (CSLab), I am currently involved in two research projects:


  1. 1.A work that involves the utilization of the Space-Time CESE framework for developing a transient viscous flow solver for utilization as a tool towards Computational aeroacoustic simulations. This is the main focus of my doctoral research. More details can be found here.

  2. 2.Development of a quasi 1-D ablation model for simulating the behavior of charring ablators (used as heat shields in re-entry vehicles) and to study the uncertainty associated with the process. A work that is funded as part of NASA CUIP. More details on this project can be found here.


My Resume can be downloaded here.

Research Summary

"...the complexities of things can so easily & dramatically escape the simplicity of the equations which describe them. Unaware of the scope of simple equations, man has often concluded that nothing short of God, not mere equations, is required to explain the complexities of the world."

- Richard Feynmann

Publications:




Journal Publications


  1. 1. Venkatachari, B., Cheng, G.C., Soni, B.K., and Chang, S.C., "Validation and Verification of Courant Number Insensitive CE/SE Method for Transient Viscous Flow Simulations", Mathematics and Computers in Simulation, 2008, Vol. 78, Issue 5-6, September 2008, pp 653-670.


  1. 2.Venkatachari, B., Cheng, G. C., Chang, C.L., and Chang, S.C., "Development of a Conservation Element-Solution Element Framework for Simulating Transient Viscous Flows", in Preparation to be submitted to the Journal of Computational Physics.


  1. 3.Venkatachari, B., Cheng, G.C., Koomullil, R.P., and Ayasoufi, A., "Computational Tools for Re-Entry Aerothermodynamics: Surface Ablation," - to be submitted to the Journal of Thermophysics and Heat Transfer.


Conference Publications


  1. 1.Venkatachari, B., Cheng, G.C., and Chang, S.C., "Development of a Transient Viscous Flow Solver Based on Conservation Element- Solution Element Framework", AIAA-2004-3413, Presented at the 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Ft. Lauderdale, Florida, July 2004.


  1. 2.Venkatachari, B., Cheng, G.C., and Chang, S.C., "Courant Number Insensitive Transient Viscous Flow Solver Based on CE/SE Framework," AIAA- 2005-0093, Presented at the 43rd AIAA Aerospace Sciences Meeting, Reno, Nevada, January 2005.


  1. 3.Venkatachari, B., Cheng, G.C., and Chang, S.C, "Validation and Verification of Courant Number Insensitive CE/SE Method for Transient Viscous Flow Simulations," AIAA-2005-4356, Presented at the 40th AIAA Joint Propulsion Conference and Exhibit, Tucson, Arizona, July 2005.


  1. 4.Venkatachari, B., Cheng, G.C., Soni, B.K., and Chang, S.C., "Validation and Verification of Courant Number Insensitive CE/SE Method for Transient Viscous Flow," Presented at the MASCOT-IMACS/ISGG Workshop, TCN CAE, Lecce, Italy, 2005.


  1. 5.Venkatachari, B., Cheng, G.C., Soni, B.K., and Chang, S.C., "High-Fidelity Computational Aeroacoustics through CE/SE Based Transient Viscous solver," Presented at the MASCOT-IMACS/ISGG Workshop, IAC-CNR, Rome, Italy, 2005.


  1. 6.Venkatachari, B., Cheng, G.C., and Chang, S.C., "High-Fidelity Computational Aeroacoustics through CE/SE Based Transient Viscous solver," AIAA- 2008-0031, Presented at the 46th AIAA Aerospace Sciences Meeting, Reno, Nevada, January 2008.


  1. 7.Venkatachari, B.S., Cheng, G.C., Koomullil, R.P., and Ayasoufi, A., "Computational Tools for Re-Entry Aerothermodynamics: Part II - Surface Ablation," AIAA Paper 2008-1218, 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, January 7-10, 2008


  1. 8.Venkatachari, B.S., Cheng, G.C.,and Koomullil, R.P., "Uncertatinty Analysis of Surface Ablation Model," AIAA Paper 2009-0261, 47th AIAA Aerospace Sciences Meeting and Exhibit, Orlando, January 2009.