Mod-01 Lec-05 Air breathing Engines - Ramjet & Scramjet

Aerospace Propulsion by Dr. P.A. Ramakrishna,Department of Aerospace Engineering,IIT Madras.For more details on NPTEL visit nptel.ac.in

[@rock3tcatU233]

This is great stuff.

[@anudeepsaivuppala3576]

i love this program sir, but it would be very helpful to us if you upload aircraft structures as well

[@AayushGore-]

Professor, can you please explain why ramjets are rectangular in design, i am failing to see how this reduces drag and how modularity becomes beneficial. Please explain sir. I have loved and enjoyed all lectures of yours that i have watched.

[@COOLABHISHEK71]

Can anyone tell me what is the use of the vanes in the diffuser. Is it for controlling the air flow direction?

[@armelmba509]

Yes, to guide them...5yrs later

[@shivangsingh5834]

To guide the flow with designed angle inti the rotors

[@mdabrar4808]

Then, How the Air is compressed in a Ramjet!!..without using the compressor 🤔?? Fact: The great way, of Exploring new ideas is by questioning the existed Designs i.e .Question the existed Designs "Why??" & Know the purpose of each part init..Can we do the same purpose in an efficient way? Ex- For an Engine Ultimate thing we want was: 1)High vel. @Nozzle(Ve=sqrt(gamma×R×T)➡️ To ⬆️Temp, ⬆️ Pressure (Compressor Evolved with this Idea)....The same Task is done in efficient way in "Ramjet"( No compressor, No Turbine..Still Does the same task✔). 2)High Thrust=Mass×(Ve-Va), 2 parameters Either ⬆️Mass flow rate(TurboFan Evolved with this Idea) / ⬆️Vel. Difference .