106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
#pragma once
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#include"function.h"
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extern double c1_euler;
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extern double c2_euler;
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extern bool is_Prandtl_fix;
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extern double Pr;
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//basic gks function
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// to store the moment
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class MMDF1d
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{
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private:
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double u;
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double lambda;
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public:
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double uwhole[10];
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double uplus[10];
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double uminus[10];
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double upxi[10][4];
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double unxi[10][4];
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double uxi[10][4];
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double xi2;
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double xi4;
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double xi6;
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MMDF1d();
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MMDF1d(double u_in, double lambda_in);
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void calcualte_MMDF1d();
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};
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// to calculate the microsolpe moment
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void G(int no_u, int no_xi, double* psi, double a[3], MMDF1d m);
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void GL(int no_u, int no_xi, double* psi, double a[3], MMDF1d m);
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void GR(int no_u, int no_xi, double* psi, double a[3], MMDF1d m);
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//moments of the maxwellian distribution function
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class MMDF
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{
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private:
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double u;
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double v;
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double lambda;
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public:
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double uwhole[7];
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double uplus[7];
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double uminus[7];
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double vwhole[7];
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double upvxi[7][7][3];
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double unvxi[7][7][3];
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double uvxi[7][7][3];
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double xi2;
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double xi4;
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MMDF();
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MMDF(double u_in, double v_in, double lambda_in);
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void calcualte_MMDF();
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};
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class MMDF1st
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{
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private:
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double u;
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double v;
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double lambda;
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public:
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double uwhole[4];
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double uplus[4];
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double uminus[4];
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double vwhole[3];
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double xi2;
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MMDF1st();
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MMDF1st(double u_in, double v_in, double lambda_in);
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void calcualte_MMDF1st();
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};
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void Collision(double *w0, double left, double right, MMDF &m2, MMDF &m3);
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void Collision(double *w0, double left, double right, MMDF1st &m2, MMDF1st &m3);
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void A(double *a, double der[4], double prim[4]);
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double Get_Tau_NS(double density0, double lambda0); // solve the smooth tau
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double TauNS_Sutherland(double density0, double lambda0); // solve the smooth tau by using sutherland
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double TauNS_power_law(double density0, double lambda0); //solver the smooth tau by using power law
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double Get_Tau(double density_left, double density_right, double density0, double lambda_left, double lambda_right, double lambda0, double dt); // solve not smooth numerical tau
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double Lambda(double density, double u, double densityE);
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double Lambda(double density, double u, double v, double densityE);
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void Convar_to_ULambda_1d(double* primvar, double convar[3]);
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//计算α，α=erfc（±√λ*U）
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double Alpha(double lambda, double u);
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//计算β，β=e^(-λ*U^2)/(√πλ)
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double Beta(double lambda, double u);
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//solution of matrix equation b=Ma
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void Microslope(double *a, double der[3], double prim[3]); //in one dimensional
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void Convar_to_ULambda_2d(double* primvar, double convar[4]);
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