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Q81 (UPPCS/2024) Science & Technology › Space & Defence Technology

With reference to "PraVaHa" software developed by ISRO, which of the following statements is/are correct ?
1. It is a path-breaking feat by Vikram Sarabhai Space Centre.
2. Initial aerodynamic design of space vehicles requires evaluation of large number of configurations.
Select the correct answer from the codes given below :

Result
Your answer: —  Â·  Correct: D

Explanation

PraVaHa (Parallel RANS Solver for Aerospace Vehicle Aero-thermo-dynamic Analysis) is an indigenous Computational Fluid Dynamics (CFD) software developed by ISRO's Vikram Sarabhai Space Centre (VSSC). Statement 1 is correct as it is a significant achievement aimed at replacing expensive commercial CFD tools, fostering self-reliance in aerospace engineering.

Statement 2 is correct because the initial aerodynamic design phase of space vehicles (such as launch vehicles and re-entry modules) requires the evaluation of a large number of configurations to optimize performance and safety. PraVaHa leverages high-performance computing to simulate airflow and aerothermal loads across various flight regimes (subsonic to hypersonic), which is critical for missions like Gaganyaan. This software allows engineers to predict complex flow behaviors and thermal stresses before physical wind tunnel testing.

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