ptspostprocessing/VortexWake.cpp at master · gaoak/ptspostprocessing · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
#include "FileIO.h"
#include "Util.h"
#include "LBMData.h"
#include <algorithm>
#include <cmath>
#include <fstream>
#include <map>
#include <set>
#include <numeric>
#include <iostream>
using namespace std;
double Integration(const std::vector<double> &dx, const std::vector<double> &dy, const std::vector<double> &data);
int ExtractDxDy(const std::vector<DataPack> & zones, std::vector<double> &dx, std::vector<double> &dy);

double ProcessWakeData(const std::vector<DataPack> & zones, std::string message) {
    int Np = zones[0].data[0].size();
    int Idx = 0, Idy = 1, Idu = 3, Idv = 4, Idvor = 5;
    double xmin = -5, xmax = 25., ymin = -5., ymax = 5.;
    double x0 = zones[1].data[0][0];
    double y0 = zones[1].data[1][0];
    std::vector<double> dx, dy;
    ExtractDxDy(zones, dx, dy);
    xmin += x0;
    xmax += x0;
    ymin += y0;
    ymax += y0;
    xmin = max(xmin, zones[0].data[0][0]);
    ymin = max(ymin, zones[0].data[1][0]);
    xmax = min(xmax, zones[0].data[0][Np-1]);
    ymax = min(ymax, zones[0].data[1][Np-1]);
    double Area = (ymax - ymin) * (xmax - xmin);
    std::vector<double> enstrophy(Np, 0.);
    std::vector<double> kinetic(Np, 0.);
    std::vector<double> circPlus(Np, 0.);
    std::vector<double> circMinus(Np, 0.);
    for(int i=0; i<Np; ++i) {
        double x = zones[0].data[Idx][i];
        double y = zones[0].data[Idy][i];
        double u = zones[0].data[Idu][i];
        double v = zones[0].data[Idv][i];
        double W_z = zones[0].data[Idvor][i];
        if(xmin < x && x < xmax && ymin < y && y < ymax) {
            enstrophy[i] = 0.5 * W_z * W_z;
            kinetic[i] = 0.5 * (u*u + v*v);
            if(W_z>0) {
                circPlus[i] = W_z;
            } else {
                circMinus[i] = -W_z;
            }
        }
    }
    double totalenstrophy = Integration(dx, dy, enstrophy) / Area;
    double totalkinetic = Integration(dx, dy, kinetic) / Area;
    double totalCircPlus = Integration(dx, dy, circPlus) / Area;
    double totalCircMinus = Integration(dx, dy, circMinus) / Area;
    std::cout << scientific << totalenstrophy << " " << totalkinetic << " " << totalCircPlus << " " << totalCircMinus << " " << message << std::endl;
    return 0;
}

int ExtractDxDy(const std::vector<DataPack> & zones, std::vector<double> &dx, std::vector<double> &dy) {
    std::vector<int> N = zones[0].N;
    int Idx = 0, Idy = 1;
    dx.resize(N[0], 0.);
    dy.resize(N[1], 0.);
    for(int i=0; i<N[0]-1; ++i) {
        dx[i] = zones[0].data[Idx][i+1] - zones[0].data[Idx][i];
    }
    dx[N[0]-1] = 0.;
    for(int j=0; j<N[1]-1; ++j) {
        dy[j] = zones[0].data[Idy][(j+1)*N[0]] - zones[0].data[Idy][j*N[0]];
    }
    dy[N[1]-1] = 0.;
    return 0;
}

double Integration(const std::vector<double> &dx, const std::vector<double> &dy, const std::vector<double> &data) {
    double sum = 0.;
    int offset = 0;
    for(size_t j=0; j<dy.size();++j) {
        for(size_t i=0; i<dx.size(); ++i, ++offset) {
            if(i && j) {
                sum += (dx[i-1] + dx[i]) * (dy[j-1] + dy[j]) * data[offset];
            }
        }
    }
    return sum * 0.25;
}

std::string processMessage(std::string message) {
    if(message.size()==0) {
        return message;
    }
    string cholder = "KD.";
    vector<size_t> holder(cholder.size(), 0);
    size_t underline = message.find('_');
    if(underline == string::npos) {
        return "";
    }
    for(size_t i=0; i<cholder.size(); ++i) {
        holder[i] = message.find(cholder[i], underline);
        if(holder[i] == string::npos) {
            return "";
        }
    }
    string res = message.substr(holder[0]+1, holder[1] - holder[0]-1) + " ";
    res += message.substr(holder[1]+2, holder[2] - holder[1]-2) + " ";
    if(message[0]=='v' || message[0]=='V') {
        res += "override";
    }
    return res;
}

int main(int argc, char* argv[]) {
  string filename("0.plt");
  string message;
  if(argc>1) {
    filename = argv[1];
  }
  if(argc>2) {
    message = argv[2];
  }
  std::vector<std::string> variables = {"x", "y", "p", "u", "v", "W_z"};
  std::vector<DataPack>  zones(3);
  zones[0].N = {985, 1, 4497};
  zones[1].N = {101, 1, 1};
  zones[2].N = {101, 1, 1};
  std::vector<std::vector<double>> dataBody;
  std::map<int, int> vm;

  InputTec360_FSILBM2D(filename, zones);
  ShiftIndex<double>(zones[0].N, zones[0].data, 1);

  message = processMessage(message);
  ProcessWakeData(zones, message);

  return 0;
}