ISRO develops “PraVaHa”, a CFD software for aerodynamic design and analysis.

Science and Technology

The Computational Fluid Dynamics (CFD) software “Parallel RANS Solver for Aerospace Vehicle Aero-thermo-dynamic Analysis” (PraVaHa) is developed in VSSC to simulate external and internal flows on launch vehicles, winged & nonwinged re-entry vehicles. Initial aerodynamic design studies for launch vehicles demand evaluation of a large number of configurations. Any aerospace vehicle while moving through the earth's atmosphere during ‘launch’ or ‘reentry’ is subjected to severe aerodynamic and aerothermal loads in terms of external pressure and heat flux.


      PraVaHa has been used extensively in the Gaganyaan program for aerodynamic analysis of human-rated launch vehicles, viz, HLVM3, Crew Escape System [CES], and Crew Module [CM]. It is designed to make use of CPU as well as GPU architecture of available and upcoming supercomputing facilities.

     

     

 

     


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Chairman -Sreedhara Somanath
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