57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||
|
|
// PPPPP H H EEEEE N N GGGGG L EEEEE III +
|
||
|
|
// P P H H E NN N G L E I +
|
||
|
|
// PPPPP HHHHH EEEEE N N N G GG L EEEEE I +
|
||
|
|
// P H H E N N N G G L E I +
|
||
|
|
// P H H EEEEE N N GGGGG LLLLL EEEEE III +
|
||
|
|
//------------------------------------------------------------------------+
|
||
|
|
// Platform for Hybrid Engineering Simulation of Flows +
|
||
|
|
// China Aerodynamics Research and Development Center +
|
||
|
|
// (C) Copyright, Since 2010 +
|
||
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||
|
|
//! @file Aerodynamics_BasicRelations.h
|
||
|
|
//! @brief Define some basic aerodynamic relations, e.g isentropic relations, shock relations.
|
||
|
|
//! @author Zhang Jian, He Xin.
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
#include "Precision.h"
|
||
|
|
|
||
|
|
namespace PHSPACE
|
||
|
|
{
|
||
|
|
|
||
|
|
//! isentropic relationships
|
||
|
|
struct IsentropicRelations{
|
||
|
|
//! T0/T
|
||
|
|
static RDouble T0OverT(RDouble gama, RDouble mach);
|
||
|
|
|
||
|
|
//! P0/P
|
||
|
|
static RDouble P0OverP(RDouble gama, RDouble mach);
|
||
|
|
|
||
|
|
//! Rho0/Rho
|
||
|
|
static RDouble Rho0OverRho(RDouble gama, RDouble mach);
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ShockRelations{
|
||
|
|
//! Behind/Before shock temperature relation
|
||
|
|
//! @param gama gama
|
||
|
|
//! @param m1 mach before the shock
|
||
|
|
static RDouble T2OverT1(RDouble gama, RDouble m1);
|
||
|
|
|
||
|
|
//! Behind/Before shock pressure relation
|
||
|
|
//! @param gama gama
|
||
|
|
//! @param m1 mach before the shock
|
||
|
|
static RDouble P2OverP1(RDouble gama, RDouble m1);
|
||
|
|
|
||
|
|
//! Behind/Before shock density relation
|
||
|
|
//! @param gama gama
|
||
|
|
//! @param m1 mach before the shock
|
||
|
|
static RDouble Rho2OverRho1(RDouble gama, RDouble m1);
|
||
|
|
|
||
|
|
//! Compute mach behind the shock by mach before the shock
|
||
|
|
//! @param gama gama
|
||
|
|
//! @param m1 mach before the shock
|
||
|
|
static RDouble MachBehindShock(RDouble gama, RDouble m1);
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|