<p>The Council of Scientific and Industrial Research – National Aerospace Laboratories (CSIR-NAL) in Bengaluru had carried out more than 3,000 wind tunnel tests to characterise the Launch Vehicle Mark 3 (LVM3), which carried the Chandrayaan-3 module from Sriharikota on Friday.</p>.<p>The LVM3 testing started in 2001 at the trisonic wind tunnel at CSIR-NAL, which has been the workhorse for all national aerospace programmes since 1967, CSIR-NAL said. Trisonic wind tunnels are systems that test the aerodynamics of spacecraft by characterising scaled models. </p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/national/chandrayaan-3-will-explore-geophysical-characteristics-of-moon-1237122.html" target="_blank">Chandrayaan-3 will explore geophysical characteristics of moon </a></strong></p>.<p>“More than 3,000 wind tunnel tests were carried out to characterise the LVM3 vehicle, which included force measurements, steady and unsteady pressure measurements, booster-load measurements, booster misalignment studies, aero-elastic and nozzle load studies, apart from surface and off-surface flow visualisation studies,” CSIR-NAL said.</p>.<p>Based on the wind tunnel tests, the configuration underwent major design changes during 2014–2015, and following modifications, the structure was cleared for the test flight.</p>.<p>“All stages of LVM3 with the Chandrayaan-3 payload fairing were acoustically characterised in this facility and cleared for launch which was crucial for the mission,” CSIR-NAL said.</p>.<p>The facility is designed to provide advanced technology solutions to national aerospace programmes like fighter aircraft, defence systems, launch vehicles and space systems.</p>
<p>The Council of Scientific and Industrial Research – National Aerospace Laboratories (CSIR-NAL) in Bengaluru had carried out more than 3,000 wind tunnel tests to characterise the Launch Vehicle Mark 3 (LVM3), which carried the Chandrayaan-3 module from Sriharikota on Friday.</p>.<p>The LVM3 testing started in 2001 at the trisonic wind tunnel at CSIR-NAL, which has been the workhorse for all national aerospace programmes since 1967, CSIR-NAL said. Trisonic wind tunnels are systems that test the aerodynamics of spacecraft by characterising scaled models. </p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/national/chandrayaan-3-will-explore-geophysical-characteristics-of-moon-1237122.html" target="_blank">Chandrayaan-3 will explore geophysical characteristics of moon </a></strong></p>.<p>“More than 3,000 wind tunnel tests were carried out to characterise the LVM3 vehicle, which included force measurements, steady and unsteady pressure measurements, booster-load measurements, booster misalignment studies, aero-elastic and nozzle load studies, apart from surface and off-surface flow visualisation studies,” CSIR-NAL said.</p>.<p>Based on the wind tunnel tests, the configuration underwent major design changes during 2014–2015, and following modifications, the structure was cleared for the test flight.</p>.<p>“All stages of LVM3 with the Chandrayaan-3 payload fairing were acoustically characterised in this facility and cleared for launch which was crucial for the mission,” CSIR-NAL said.</p>.<p>The facility is designed to provide advanced technology solutions to national aerospace programmes like fighter aircraft, defence systems, launch vehicles and space systems.</p>
