Questions tagged [compressible-flow]
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How to balance flow and pressure in nitrogen purged chambers?
I have an instrument that is technically a humidity controlled chamber. It measures how much moisture is picked up by the sample through a microbalance(Zone 1). Nitrogen gas flows from zone 3 and ...
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Confusion between Steady flow and Space-Time invariant density field
Let's take the example of a steady flow with velocity field as $u=βr(\tilde{r})$. Now, we can find a density field $ρ(r,t)$ that satisfies the mass conservation equation of $∂ρ/∂t+∇(ρu)=0$.
First, ...
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Can any Air rotameter be used for refrigerant gas by using equation conversion?
Currently, I am trying to find rotameter calibrated for R134A gas flow. However, most companies only sell rotameter or variable area flowmeter for water/Air/Nitrogen flow. Is it possible to use any ...
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Water Valve Functionality
Before to present my question, I have to say that I'm not a hydraulic expert.
I'm working on a water valve design and I found this model which work with a diaphragm and a spring. I want to consider ...
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Joule Thompson Effect and Isenthalpic Processes
We are trying to compute the Joule Thompson (JT) coefficient for air going through a valve from P1 to P2 (where P2 is a much lower pressure). Beginning this we were thinking that the water in the air ...
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Ideal Exhaust velocity of a rocket nozzle
In a youtube video, they defined exit exhaust velocity of a rocket nozzle as
$$v_2 = \sqrt{\dfrac{2k}{k - 1}RT_1 \left[1 - \left(\dfrac{p_2}{p_1}\right)^{(k - 1) / k}\right]}$$
How can I derive this ...
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