![](https://gnitergroup.com/wp-content/uploads/2022/12/tunnell-1024x877.jpg)
The first “blow down” test of the trisonic wind tunnel, much awaited by the Indian scientific community, took place on 8 December 2022 at the Vikram Sarabhai Space Center in Thiruvananthapuram.
![](https://gnitergroup.com/wp-content/uploads/2022/12/FjiRSX_VUAIKtNc.jpeg)
Trisonic wind tunnels can be used to test the aerodynamic design of rockets and re-entry spacecraft, and to evaluate the load distribution, pressure, acoustic levels, etc. experienced therein. The trisonic tunnel has an overall length of 160 m and a maximum cross diameter of 5.4 m.
![](https://gnitergroup.com/wp-content/uploads/2022/12/u66_cutaway-1024x669.jpg)
The technique can be used for various experiments in three speed ranges during spacecraft launches – subsonic, supersonic and supersonic: hence the name trisonic wind tunnel. The tunnel is suitable for speeds ranging from 0.2 times the speed of sound (68 m/s) to 4 times the speed of sound (1360 m/s).
![](https://gnitergroup.com/wp-content/uploads/2022/12/Trisonic-Wind-Tunnel-General-View.jpg)
VSSC Director Dr. S. Unnikrishnan Nair, LPSC Director Dr. V Narayanan, Director, IISU.Dr. DOS was formally switched on by ISRO/Secretary Shri S Somnath in the presence of senior officials of ISRO including Sam Dayala Dev.
![](https://gnitergroup.com/wp-content/uploads/2022/12/Sketch-of-the-Trisonic-Wind-tunnel-Munich-facility-TWM-at-Bundeswehr-University-Munich.png)
The trisonic wind tunnel is a major step towards India’s increasing self-reliance in the aerospace sector.
![](https://gnitergroup.com/wp-content/uploads/2022/12/as-tmk-transonic-test-section-683x1024.jpg)
Recent Comments