ISRO Missions and Discoveries

PraVaHa tool for Aerodynamic Design and Analysis


From UPSC perspective, the following things are important :

Prelims level: PraVaHa Tool

Why in the News?

The Indian Space Research Organisation (ISRO) has launched the Computational Fluid Dynamics (CFD) software named Parallel RANS Solver for Aerospace Vehicle Aero-thermo-dynamic Analysis (PraVaHa).

About PraVaHa

  • PraVaHa was developed at ISRO’s Vikram Sarabhai Space Centre (VSSC), showcasing India’s prowess in aerospace technology.
  • It can simulate both external and internal flows on various aerospace vehicles, including launch vehicles, and winged, and non-winged re-entry vehicles.
  • It facilitates initial aerodynamic design studies by evaluating numerous configurations, crucial for optimizing vehicle performance and safety.

Role of Computational Fluid Dynamics (CFD)

  • CFD predicts aerodynamic and aerothermal loads by solving governing equations. It has matured to offer high accuracy and fast simulations, addressing aerospace challenges like high pressure and intense heat flux.

Integration in Gaganyaan Program

  • Key Applications: PraVaHa plays a pivotal role in the Gaganyaan program, facilitating aerodynamic analysis of human-rated launch vehicles such as HLVM3, Crew Escape System (CES), and Crew Module (CM).
  • Scalability and Collaboration: Designed to leverage both CPU and GPU architectures, PraVaHa ensures compatibility with existing and future supercomputing facilities, fostering collaboration with academic and government institutions.


[2010] In the context of space technology, what is “Bhuvan”, recently in the news?

(a) A mini satellite launched by ISRO for promoting the distance education in India.

(b) The name given to the next Moon Impact Probe, for Chandrayaan-II.

(c) A geoportal of ISRO with 3D imaging capabilities of India.

(d) A space telescope developed by India.

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