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Shock polar The term ''shock polar'' is generally used with the graphical representation of the Rankine-Hugoniot equations in either the hodograph plane or the pressure ratio-flow deflection angle plane. The polar itself is the locus of all possible states after an oblique shock. == Shock Polar in the Plane ==
The minimum angle, , which an oblique shock can have is the Mach angle , where is the initial Mach number before the shock and the greatest angle corresponds to a normal shock. The range of shock angles is therefore . To calculate the pressures for this range of angles,the Rankine-Hugoniot equations are solved for pressure:
To calculate the possible flow deflection angles, the relationship between shock angle and is used:
Where is the ratio of specific heats and is the flow deflection angle.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Shock polar」の詳細全文を読む
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