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Compressible Flow: Energy Lecture 22 ME EN 412 Andrew Ning - - PDF document
Compressible Flow: Energy Lecture 22 ME EN 412 Andrew Ning - - PDF document
Compressible Flow: Energy Lecture 22 ME EN 412 Andrew Ning aning@byu.edu Outline Energy Equation Speed of Sound Stagnation Quantities Energy Equation Energy Equation rate of accumulation + rate of outflow rate of inflow = rate of
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Work Differential form
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along a streamline: h1 + V 2
1
2 + gz1 + q = h2 + V 2
2
2 + gz2
Speed of Sound
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Speed of Sound
sound wave a = ∂p ∂ρ
- s
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Stagnation Quantities Stagnation Quantities
T0 T = 1 + γ − 1 2 M 2
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P0 P =
- 1 + γ − 1
2 M 2 γ/(γ−1) ρ0 ρ =
- 1 + γ − 1