112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2022 NHR@FAU, University Erlangen-Nuremberg.
|
||
|
|
* All rights reserved. This file is part of nusif-solver.
|
||
|
|
* Use of this source code is governed by a MIT style
|
||
|
|
* license that can be found in the LICENSE file.
|
||
|
|
*/
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include "parameter.h"
|
||
|
|
#include "util.h"
|
||
|
|
#define MAXLINE 4096
|
||
|
|
|
||
|
|
void initParameter(Parameter* param)
|
||
|
|
{
|
||
|
|
param->xlength = 1.0;
|
||
|
|
param->ylength = 1.0;
|
||
|
|
param->imax = 100;
|
||
|
|
param->jmax = 100;
|
||
|
|
param->itermax = 1000;
|
||
|
|
param->eps = 0.0001;
|
||
|
|
param->omg = 1.7;
|
||
|
|
param->re = 100.0;
|
||
|
|
param->gamma = 0.9;
|
||
|
|
param->tau = 0.5;
|
||
|
|
}
|
||
|
|
|
||
|
|
void readParameter(Parameter* param, const char* filename)
|
||
|
|
{
|
||
|
|
FILE* fp = fopen(filename, "r");
|
||
|
|
char line[MAXLINE];
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (!fp) {
|
||
|
|
fprintf(stderr, "Could not open parameter file: %s\n", filename);
|
||
|
|
exit(EXIT_FAILURE);
|
||
|
|
}
|
||
|
|
|
||
|
|
while (!feof(fp)) {
|
||
|
|
line[0] = '\0';
|
||
|
|
fgets(line, MAXLINE, fp);
|
||
|
|
for (i = 0; line[i] != '\0' && line[i] != '#'; i++)
|
||
|
|
;
|
||
|
|
line[i] = '\0';
|
||
|
|
|
||
|
|
char* tok = strtok(line, " ");
|
||
|
|
char* val = strtok(NULL, " ");
|
||
|
|
|
||
|
|
#define PARSE_PARAM(p, f) \
|
||
|
|
if (strncmp(tok, #p, sizeof(#p) / sizeof(#p[0]) - 1) == 0) { \
|
||
|
|
param->p = f(val); \
|
||
|
|
}
|
||
|
|
#define PARSE_STRING(p) PARSE_PARAM(p, strdup)
|
||
|
|
#define PARSE_INT(p) PARSE_PARAM(p, atoi)
|
||
|
|
#define PARSE_REAL(p) PARSE_PARAM(p, atof)
|
||
|
|
|
||
|
|
if (tok != NULL && val != NULL) {
|
||
|
|
PARSE_REAL(xlength);
|
||
|
|
PARSE_REAL(ylength);
|
||
|
|
PARSE_INT(imax);
|
||
|
|
PARSE_INT(jmax);
|
||
|
|
PARSE_INT(itermax);
|
||
|
|
PARSE_REAL(eps);
|
||
|
|
PARSE_REAL(omg);
|
||
|
|
PARSE_REAL(re);
|
||
|
|
PARSE_REAL(tau);
|
||
|
|
PARSE_REAL(gamma);
|
||
|
|
PARSE_REAL(dt);
|
||
|
|
PARSE_REAL(te);
|
||
|
|
PARSE_REAL(gx);
|
||
|
|
PARSE_REAL(gy);
|
||
|
|
PARSE_STRING(name);
|
||
|
|
PARSE_INT(bcLeft);
|
||
|
|
PARSE_INT(bcRight);
|
||
|
|
PARSE_INT(bcBottom);
|
||
|
|
PARSE_INT(bcTop);
|
||
|
|
PARSE_REAL(u_init);
|
||
|
|
PARSE_REAL(v_init);
|
||
|
|
PARSE_REAL(p_init);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fclose(fp);
|
||
|
|
}
|
||
|
|
|
||
|
|
void printParameter(Parameter* param)
|
||
|
|
{
|
||
|
|
printf("Parameters for %s\n", param->name);
|
||
|
|
printf("Boundary conditions Left:%d Right:%d Bottom:%d Top:%d\n",
|
||
|
|
param->bcLeft,
|
||
|
|
param->bcRight,
|
||
|
|
param->bcBottom,
|
||
|
|
param->bcTop);
|
||
|
|
printf("\tReynolds number: %.2f\n", param->re);
|
||
|
|
printf("\tInit arrays: U:%.2f V:%.2f P:%.2f\n",
|
||
|
|
param->u_init,
|
||
|
|
param->v_init,
|
||
|
|
param->p_init);
|
||
|
|
printf("Geometry data:\n");
|
||
|
|
printf("\tDomain box size (x, y): %.2f, %.2f\n", param->xlength, param->ylength);
|
||
|
|
printf("\tCells (x, y): %d, %d\n", param->imax, param->jmax);
|
||
|
|
printf("Timestep parameters:\n");
|
||
|
|
printf("\tDefault stepsize: %.2f, Final time %.2f\n", param->dt, param->te);
|
||
|
|
printf("\tTau factor: %.2f\n", param->tau);
|
||
|
|
printf("Iterative solver parameters:\n");
|
||
|
|
printf("\tMax iterations: %d\n", param->itermax);
|
||
|
|
printf("\tepsilon (stopping tolerance) : %f\n", param->eps);
|
||
|
|
printf("\tgamma (stopping tolerance) : %f\n", param->gamma);
|
||
|
|
printf("\tomega (SOR relaxation): %f\n", param->omg);
|
||
|
|
}
|