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InitNozzle.cpp
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Fri, Jul 4, 16:21

InitNozzle.cpp
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//
// Created by Fabian Moenkeberg on 2019-12-18.
//
#include "InitNozzle.hpp"
std::vector<double> initNozzle::F(std::vector<double> x){
std::vector<double> ret(4,0);
// double r2 = pow(x[0]-xc[0],2) + pow(x[1]-xc[1],2);
// ret[0] = pow(1-beta*beta*(gamma-1)*exp(1-r2)/(8*gamma*M_PI*M_PI),1/(gamma-1));
// ret[1] = (M*cos(alpha)-beta*(x[1]-xc[1])*exp((1-r2)*0.5)*0.5/M_PI)*ret[0];
// ret[2] = (M*sin(alpha)+beta*(x[0]-xc[0])*exp((1-r2)*0.5)*0.5/M_PI)*ret[0];
// ret[3] = pow(ret[0],gamma)/(gamma-1)+0.5*(ret[1]*ret[1]+ret[2]*ret[2])/ret[0];
// double r_in = 1;
// double u1_in = std::sqrt(gamma)*M;
// double u2_in =0;
// double p_in = 1;
gamma = 1.4;
std::vector<double> U_in(4);
std::vector<double> U_out(4);
U_in.resize(4);
U_out.resize(4);
double r_in = 5.8;
double u1_in = 77*r_in;
double u2_in =0;
double p_in = 101325*13.5;
double E_in = p_in/(gamma - 1) + 0.5*(u1_in*u1_in+u2_in*u2_in)*r_in;
double r_out = 1.3;
double u1_out = 197;
double u2_out =0;
double p_out = 101325;
double E_out = p_out/(gamma - 1) + 0.5*(u1_out*u1_out+u2_out*u2_out)*r_out;
U_in = {r_in, r_in*u1_in, r_in*u2_in, E_in};
U_out = {r_out, r_out*u1_out, r_out*u2_out, E_out};
if (x[0] < 110 && x[1]< 40){
ret[0] = r_in;
ret[1] = u1_in*r_in;
ret[2] = u2_in*r_in;
ret[3] = E_in;
}else{
ret[0] = r_out;
ret[1] = u1_out*r_out;
ret[2] = u2_out*r_out;
ret[3] = E_out;
}
return ret;
}

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