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SR-72 Confirmed: Mach 6 Project Blackswift

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posted on May, 30 2019 @ 08:43 AM
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a reply to: Blackfinger

Nope. Almost all the Russian stuff is reworked Soviet tech. The Russians have not nearly enough money (sanctions have actually hurt) and have been suffering a serious brain drain.

China has several generations of US trained scientists and engineers now. Many of whom have returned to China for their careers. They have even crossed the threshold where their universities are approaching American ones for quality, so they can train their own STEM types. Chinese AI work, frex, is second only to the US. Europe doesn't even compare.
China has plenty of dinero. As noted, China's economy is larger than the US if you go by PPP (what you can buy with a given amount of money). They are perfectly willing to burn money to get the tech/science they want. Plenty of base knowledge plus money equals they can figure the rest out.

The laws of physics don't care what color your flag.

People are stuck with a 1990s vision of what China is. 1999 was 20 years ago! People need to get over their assumptions.




posted on Jun, 2 2019 @ 03:29 AM
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There are still a lot of smart Russians at work though.



posted on Jun, 2 2019 @ 08:57 PM
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a reply to: Blackfinger

Not nearly as many as there used to be. And money often trumps smarts.



posted on Jun, 12 2019 @ 11:05 AM
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Experimental and numerical study of solid rocket scramjet combustor equipped with combined cavity and strut device

Authors:


Li et al

Abstract:


In this paper, a new solid rocket scramjet equipped with two combined cavity and strut device was studied by experimental and numerical approaches. The experiment simulated a flight Mach number 5.5 at 23 km. Hydrocarbon type fuel was used as the solid fuel-rich propellant. Three-dimensional Reynolds-averaged Navier–Stokes equations coupled with shear stress transport turbulence model are employed to simulate the flow field in the solid rocket scramjet combustor. The numerical method was validated by experimental data. The experimental results show that the combined cavity and strut device can play a role as ignition and flame holding in the solid rocket scramjet combustor. Additionally, the numerical results show that the combustion of gas and particle phase is conducted sequentially rather than simultaneously. And the total combustion efficiency mainly depends on the particle combustion. The total combustion efficiency is about 0.7 and the total pressure recovery is about 0.25 in this test. The combined cavity and strut device do improve the combustion efficiency in the solid rocket scramjet. However, the total pressure recovery is a rather low. Aerodynamic configuration optimization of the combined cavity and strut device will be carried out in the next step.


www.sciencedirect.com...



posted on Jun, 12 2019 @ 09:38 PM
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a reply to: anzha

India test fired their first purely local hypersonic weapon/vehicle.

pib.nic.in...#
edit on 12-6-2019 by anzha because: forgot the link



posted on Jun, 16 2019 @ 01:16 PM
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Flowfield structures of pylon-aided fuel injection into a supersonic crossflow

Authors:


Li et al

Abstract:


Flowfield structures of pylon-aided fuel injection of a sonic jet into a supersonic crossflow with Ma = 2.95 have been investigated by Nanoparticle-based Planar Laser Scattering (NPLS) technique and oil flow technique, seperately. Two experimental cases have been done for jet-to-crossflow momentum flux ratios (J) of 7.7 and 20.6, respectively, and the results are compared with those obtained by normal injection of a single jet from a flat plate without a pylon. Experimental results indicate that the flow structures of pylon-aided injection cases are very similar to those found in the normal injection cases in the downstream region of the jet. Upstream of the jet orifice, the detached shock generated at the leading edge of the pylon is identified by inserting with the separation shock. For lower injection pressure case there is always larger influences of the pylon in the flow structures in terms of jet plums’ position and the shock intensity. Besides, the mechanism of mixing enhancement resulting from the pylon is also elaborated in the present work.


www.sciencedirect.com...



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