RoaringTigerHiddenDragon
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This is true. Hypersonic research costs a ton as there is only so much you can do with computational fluid dynamics modeling and wind tunnel tests.true but the intake of oxygen and conversion in scranjets is a lot more complex and harder to control. Very few nations able to do so. Australia has also had a advanced program in the past but nothing developed ? I think this can also help with future glide bombs for India??
Here is a simulation of shock waves created simulated for the X-43 flying at Mach 7.
Per authors: "This rendering of the NASA X-43 experimental hypersonic vehicle, generated using computational fluid dynamics, shows shock waves produced at Mach 7—seven times the speed of sound—while the scramjet that powers its flight is operating. Such computations could not have been done in the early days of hypersonic research, when engineers were armed only with slide rules and wind tunnels. Note how the hypersonic shock waves form at the vehicle’s leading edges and at the air inlets. In merely supersonic flight the shock wave typically fans out and away from the vehicle, but at hypersonic speeds it may nestle close by. This boundary layer can be aerodynamically useful—by creating lift, for instance—but it can also cause problems should turbulence develop."
For R&D cash starved countries like ours, it is going to take a while and we are going to be behind CCPstan as they simply have more cash to iterate more.