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Derivation of Exit Velocity <-> Isentropic Relations #9

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mr-september opened this issue Oct 13, 2022 · 0 comments
Open

Derivation of Exit Velocity <-> Isentropic Relations #9

mr-september opened this issue Oct 13, 2022 · 0 comments

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@mr-september
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mr-september commented Oct 13, 2022

Hi, I have several questions regarding the equations in the docs, under the section "Exit Velocity".

  1. Could you please show some in-between steps between the 1st and 2nd equations in that section? This doesn't appear to be a standard isentropic relation, at least in this form.
  2. In the 3rd equation, what does the "normal" R represent? Usually it represents Avogadro's constant, but in this case it is Avogadro's divided by Molecular Weight? Is there a name for this variable? This may help me bridge above equations 1 and 2.
  3. Still in the 3rd equation, I don't think the units are balanced? Left hand side, velocity, would be m/s, but right hand side resolves to J.g/(mol^2)?
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