The rig is being instrumentated for transitioning from cold flow supersonic mixing studies to reacting flow mode transition studies.

Dr. Koppillil Radhakrishnan visited APSYS lab in January 2023 as a part of a visit to IIT Kharagpur India. Dr. Radhakrishnan is an Indian space scientist who headed the Indian Space Research Organisation between November 2009 and December 2014 as Chairman of Space Commission, Secretary of the Department of Space and Chairman of ISRO.

In this recent paper from our group on SCRAM-RAM modes inside a Dual-Mode-Scramjet-Engine (DMSJ), Rajesh Kumar shows that for the Supersonic-at-Strut modes, shockwaves in the combustor respond predictably to an increase or decrease in fuel flow rates. Intermediate and final flow fields bear close resemblance to the steady state flow fields predicted by RANS for those fuel flow rates. Shocks adjust accordingly to match the combustion driven pressure rise. Under the Supersonic-at-Strut mode, when fuel flow rate is increased, the shocks steepen and concentrate near the base of the strut. When fuel flow rate is decreased, the opposite trend is observed wherein shocks become more oblique and spread away downstream from the base of the strut. For the Subsonic-at-Strut modes, shockwaves in the flow field are rather unstable to fuel flow rate modulations. Any change in fuel flow rates causes the isolator shocks to immediately move upstream irrespective of if the fuel flow rate is increased or decreased, suddenly or gradually. Because of this instability of isolator shocks for the Subsonic-at-Strut modes, feedback control of isolator shocks using fuel-flow rate modulations alone may not be feasible.

"Thank you for shaping the future with your wisdom, dedication, and guidance. Your impact on our life is immeasurable, and we are forever grateful. Happy Teacher’s Day!"

🚀 Just returned from the Aviation Forum 2024, and what an incredible experience it was! I am grateful to my supervisor,  Dr. Amardip Ghosh, for his consistent support and insightful advice, and many thanks to my institute, the Indian Institute of Technology Kharagpur, India, for the financial support that made this journey possible. 🙏

What happens in Vegas doesn’t stay in Vegas – it’s coming with me as newfound knowledge and inspiration for my future work! ✈️

I had the pleasure of presenting my paper titled "Effect of Wall Divergence on the Flow Field Inside a Scramjet Engine" (DOI: 10.2514/6.2024-3891). Engaging with fellow researchers and exchanging ideas has truly been inspiring. The conference was a fantastic opportunity to connect with some brilliant minds in the field of aerodynamics and propulsion.

I’m also deeply thankful to my co-authors for their dedication and hard work in ensuring we met the submission deadline. Your contribution was key to our success. A special thanks to Dipesh Raj, a fellow researcher, for his invaluable help in planning and organizing everything – we couldn't have done it without you!

Looking forward to applying these experiences and insights as I continue the journey in aviation research! ✈️

#AviationForum2024 #Research #Networking #Gratitude

🚀 Proud to Showcase Our Work to ISRO Chairman S. Somanath and Dr. V. Narayanan at the Department of Aerospace, IIT Kharagpur! 🚀

We had the immense honor of hosting ISRO Chairman S. Somanath, along with Dr. V. Narayanan, Director of the Liquid Propulsion Systems Centre, at our Department of Aerospace, IIT Kharagpur. During their visit, we demonstrated the experimental setup of a scramjet engine that I developed from scratch under the invaluable guidance of Dr. Amardip Ghosh.

Their keen interest in our work and their encouraging words have fueled our determination to expand our research in aerospace engineering.

A heartfelt thanks to our Head of Department, Prof. Arnab Roy, for his continuous support and for facilitating such impactful interactions. Special thanks also to Dr. Ghosh for his mentorship and guidance, and to the entire team at APSYS Lab for making the setup ready on time.

We look forward to contributing even more to India's space research!

#Aerospace #ISRO #Innovation #Research #IITKharagpur #SpaceExploration #EngineeringExcellence