
fluid dynamics - Structure of Mach diamonds in supersonic and ...
2019年9月30日 · The flow stabilized really nicely, and you get an absolutely fantastic view of the Mach diamonds. Yeah. So, this thing has me entranced. I want to know everything about the physics here. Found a really nice breakdown of Mach diamonds in overexpanded flow here, but there are some significant differences.
What is the nature behind the periodicity of the Mach diamonds?
2021年9月1日 · The speed of sound within the exhaust plume is not the same as it is in the ambient air outside the plume. Sonic disturbances in the plume that propagate at an angle to the flow direction refract off the impedance mismatch at the edge of the plume and bounce back and forth within the plume, creating periodic pil
fluid dynamics - Are Mach Diamonds radially symmetrical?
Structure of Mach diamonds in supersonic and hypersonic flows (SpaceX raptor engine video of Sept. 28, 2019) 1 Mach number at the throat of Convergence-Divergence nozzle
rocket science - Home-made Shock diamond - Physics Stack …
2012年10月21日 · Note: I mentioned that you simply can't create those diamonds. But, you could do a lot of things in photography. Like, picturing some cool flame torches in oxy-acetylene (or an alkane) welding torch and do some tricks using whatever you've got good in image effects. Or, you could blend some to create diamonds like these people.
Why do large rockets make "popping" sounds during liftoff?
2016年9月10日 · Those Mach diamonds alone were responsible for some of the uneven sound that resulted from a Shuttle launch. Another source of that noise was due to the nature of the SRBs. Unlike the fluid-fueled engines, the SRBs (as their name implies) were solid fuel engines.
Mach cone geometry from Mach number - Physics Stack Exchange
2020年4月24日 · Structure of Mach diamonds in supersonic and hypersonic flows (SpaceX raptor engine video of Sept. 28, 2019) 1 Can a Mach number be defined for a hot gas fluid element using its own temperature and velocity?
Fluid flow at mach 1 - Physics Stack Exchange
2014年7月29日 · Structure of Mach diamonds in supersonic and hypersonic flows (SpaceX raptor engine video of Sept. 28, 2019) 20 Water Bottle Rocket Thrust - two calculation methods not matching
Why the exhaust pressure should be equal to ambient pressure?
2017年1月19日 · The optimum occurs because of the following mathematical arguments. I am going to give the physical argument with the nozzle flow equations, however, the method of Lagrangian multipliers could be used to mathematically prove the …
Can the pressure term in the general thrust equation be negative?
2019年3月7日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
fluid dynamics - Static Pressure in a Venturi vs a Free stream ...
2016年10月22日 · We seem to have two conflicting measures of pressure in a Venturi siphon open to the atmosphere, $\hspace{100px}$.