forked from p35462178/gks2d-str
54 lines
2.1 KiB
C
54 lines
2.1 KiB
C
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#pragma once
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#include<iostream>
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#include<cmath>
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#include<assert.h>
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using namespace std;
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extern int K;
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extern double Gamma;
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extern double Mu;
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extern double Nu;
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extern double T_inf; //the real temperature
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extern double R_gas; //the gas constant for real ideal air
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enum TAU_TYPE { Euler, NS, Sutherland, Power_law };
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extern TAU_TYPE tau_type;
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void Copy_Array(double* target, double* origin, int dim);
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void Array_zero(double* target, int dim);
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void Array_subtract(double* target, double* subtractor, int dim);
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void Array_scale(double* target, int dim, double value);
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void Convar_to_primvar_1D(double* primvar, double convar[3]);
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double Pressure(double density, double densityu, double densityE);
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double Temperature(double density, double pressure);
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double entropy(double density, double pressure);
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double Soundspeed(double density, double pressure);
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void Primvar_to_convar_1D(double* convar, double primvar[3]);
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double DensityU(double density, double u);
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double DensityE(double density, double u, double pressure);
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void Convar_to_char1D(double* character, double primvar[3], double convar[3]);
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void Char_to_convar1D(double* convar, double primvar[3], double charvar[3]);
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double U(double density, double q_densityu);
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double V(double density, double q_densityv);
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double Pressure(double density, double q_densityu, double q_densityv, double q_densityE);
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double Q_densityu(double density, double u);
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double Q_densityv(double density, double v);
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double Q_densityE(double density, double u, double v, double pressure);
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void Primvar_to_convar_2D(double* convar, double primvar[4]);//2d version
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void Convar_to_primvar_2D(double* primvar, double convar[4]);//2d version
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void Convar_to_char(double* character, double* primvar, double convar[4]);
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void Char_to_convar(double* convar, double* primvar, double character[4]);
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void Global_to_Local(double* change, double* normal);
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void Global_to_Local(double* change, double* origin, double* normal);
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void Local_to_Global(double* change, double* normal);
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void Local_to_Global(double* change, double* origin, double* normal);
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double Dtx(double dtx, double dx, double CFL, double density, double u, double v, double pressure);
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