gas_dynamics
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Introduction

  • Getting Started

Review

  • Thermo and Fluid Sciences Review
  • Compressible Flow

Gas Dynamics

  • Standard Equations
  • Shocks
    • Equation Map - Shocks
    • shock_mach()
    • shock_mach_before()
    • shock_pressure_ratio()
    • shock_mach_from_pressure_ratio()
    • shock_temperature_ratio()
    • shock_dv_a()
    • shock_stagnation_pressure_ratio()
    • shock_tables()
    • shock_flow_deflection()
    • shock_angle()
    • shock_mach_given_angles()
    • shock_oblique_charts()
    • shock_flow_deflection_from_machs()
  • Prandtl-Meyer
  • Fanno Flow
  • Rayleigh Flow
  • Notes about the fluid class
  • Extra

Misc

  • About Me
  • License
  • Credits
  • Index
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  • Equation Map - Shocks
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Equation Map - Shocks

shock_mach

M_{2} = \left[ \frac{ M_{1}^2 + 2 / (\gamma -1) }{ \left[ 2 \gamma /( \gamma -1 ) \right] M_{1}^2 -1 } \right]^ {\frac{1}{2}}

shock_mach_before

M_{2} = \left[ \frac{ M_{2}^2 + 2 / (\gamma -1) }{ \left[ 2 \gamma /( \gamma -1 ) \right] M_{2}^2 - 1 } \right]^ {\frac{1}{2}}

shock_pressure_ratio

\frac{p_{2}}{p_{1}} = \frac{ 2 \gamma }{ \gamma + 1} M_{1}^2 - \frac{ \gamma - 1 }{ \gamma + 1}

shock_mach_from_pressure_ratio

M = \left[\frac{\gamma+1}{2\gamma} \left(\frac{p_{2}}{p_{1}}\right)+\frac{\gamma-1}{\gamma+1}\right]^{\frac{1}{2}}

shock_temperature_ratio

\frac{T_{2}}{T_{1}} = \frac{\left( 1 + \left[ \left( \gamma - 1 \right) /2 \right] M_{1}^2 \right) \left( \left[ 2 \gamma / \left( \gamma -1 \right) \right] M_{1}^2 -1 \right)}{ \left[ \left( \gamma + 1 \right)^2 / 2 \left(\gamma - 1 \right) \right] M_{1}^2 }

shock_dv_a

\frac{dV}{a_{1}} = \left( \frac{2}{\gamma + 1} \right) \left( \frac{ M_{1}^2 -1} {M_{1}} \right)

shock_stagnation_pressure_ratio

\frac{p_{t2}}{p_{t1}} = \left( \frac{\left[ \left( \gamma + 1 \right) /2 \right] M_{1}^2} { 1 + \left[ \left( \gamma - 1 \right) /2 \right] M_{1}^2 } \right)^ { \frac{\gamma}{\gamma -1}} \left[ \frac{2\gamma}{\gamma+1} M_{1}^2 - \frac{\gamma -1}{ \gamma +1}\right] ^ {\frac{1}{1-\gamma}}

shock_flow_deflection

\delta = \arctan \left[ 2 \cot(\theta) \left( \frac{ M_{1}^2 \sin^2 (\theta) - 1}{ M_{1}^2 (\gamma + \cos 2\theta) + 2 } \right) \right]

shock_angle , shock_mach_given_angles , and shock_flow_deflection_from_machs all employ equation solvers with combinations of the above functions to return the desired values.

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