16.1 The Hypersonic Equivalence Principle
Consider the Euler Equations for two-dimensional unsteady flow in y-z plane.Here x-axis is the direction of freestream velocity. Therefore the governing equations in y-z plane perpendicular to the freestream velocity can be written as,
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16.1
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Let us non-dimensionalize using following reference variables,
Where, V∞ and ρ∞ can be treated as reference quantities.
Therefore the non-dimensional form of governing equations are,
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16.5
16.6
16.7
16.8 |