NGFlowCal--C/FlowCal.c

//
// Created by ldeyu on 2025/7/7.
//
#include "NGCal.h"
#include "FlowCal.h"
#include "math.h"


double format_double(double value, int digits) {
    // 处理默认位数（4位）
    if (digits == 0) {
        digits = 4;
    }

    // 验证位数有效性
    if (digits < 1 || digits > 5) {
        fprintf(stderr, "Error: Invalid digit value (must be 1-5 or 0 for default)\n");
        return NAN; // 返回 NaN 表示错误
    }

    char format_str[10];
    char buffer[50];

    // 生成动态格式字符串（如 "%.4f"）
    snprintf(format_str, sizeof(format_str), "%%.%df", digits);

    // 格式化数值到字符串
    snprintf(buffer, sizeof(buffer), format_str, value);

    // 转换回 double
    double result = strtod(buffer, NULL);
    return result;
}

void OFlowCal(FlowParSTRUCT *ptFlowPar, NGParSTRUCT *ptNGPar) {
    double tempPatm = ptFlowPar->dPatm * 1000000;

    double tempPf = ptFlowPar->dPf * 1000000;


    double tempDP = ptFlowPar->dDp * 1000;

    double tempTf = ptFlowPar->dTf + 273.15;

    if (ptFlowPar->dPfType == 0) {
        ptFlowPar->dPf = tempPatm + tempPf;
        ptNGPar->dPf = tempPatm + tempPf;
    } else {
        ptFlowPar->dPf = tempPf;
        ptNGPar->dPf = tempPf;
    }

    ptFlowPar->dDp = tempDP;
    ptFlowPar->dTf = tempTf;
    ptNGPar->dTf = tempTf;
    ptNGPar->dCbtj = ptFlowPar->dCbtj;

    switch (ptNGPar->dCbtj) {
        case 2:
            ptNGPar->dPb = 101325;
            ptNGPar->dTb = 273.15;
            ptFlowPar->dPb_M = (101325);
            ptFlowPar->dTb_M = (273.15);
            break;
        case 1:

            ptNGPar->dPb = (101325);
            ptNGPar->dTb = (288.15);
            ptFlowPar->dPb_M = (101325);
            ptFlowPar->dTb_M = (288.15);
            break;
        case 0:

            ptNGPar->dPb = (101325);
            ptNGPar->dTb = (293.15);
            ptFlowPar->dPb_M = (101325);
            ptFlowPar->dTb_M = (293.15);
            break;
        default: ;
    }

    double ngArray[NUMBEROFCOMPONENTS];

    for (int i = 0; i < NUMBEROFCOMPONENTS; i++) {
        ngArray[i] = ptFlowPar->dNG_Compents[i] / 100;
        ptNGPar->adMixture[i] = ngArray[i];
    }
    Crit(ptNGPar, 0);


    ptFlowPar->dFpv = format_double(ptNGPar->dFpv, 4);


    ptFlowPar->dOrificeD = format_double(ptFlowPar->dOrificeD * (
                                             1 + 0.000001 * CaiLiaoPzxs(ptFlowPar->dOrificeMaterial) * (
                                                 ptFlowPar->dTf - 293.15)), 2);
    ptFlowPar->dPipeD = format_double(ptFlowPar->dPipeD * (1 + 0.000001 * CaiLiaoPzxs(ptFlowPar->dPipeMaterial) * (
                                                               ptFlowPar->dTf - 293.15)), 2);
    ptFlowPar->dBeta = format_double(ptFlowPar->dOrificeD / ptFlowPar->dPipeD, 4);

    ptFlowPar->dE = format_double(calculateE(ptFlowPar->dBeta), 4);
    ptFlowPar->dFG = format_double(calculateFG(ptNGPar->dRD_Real), 4);
    ptFlowPar->dFT = format_double(calculateFT(ptFlowPar->dTb_M, ptFlowPar->dTf), 4);

    ptFlowPar->dKappa = format_double(calculateKappa(ptNGPar->dZf), 4);
    ptFlowPar->dDViscosity = format_double(Dlndjs(ptFlowPar->dPf / 1e6, ptFlowPar->dTf), 5);
    ptFlowPar->dDExpCoefficient = format_double(calculateEpsilon(ptFlowPar->dPf, ptFlowPar->dDp,
                                                                 ptFlowPar->dBeta, ptFlowPar->dKappa), 4);

    double D = ptFlowPar->dPipeD / 1000.0;
    double d = ptFlowPar->dOrificeD / 1000.0;
    double beta = ptFlowPar->dBeta;
    double P1 = ptFlowPar->dPf;
    double deltaP = ptFlowPar->dDp;
    double Tf = ptFlowPar->dTf;


    double C_initial = 0.6;
    double Qf_initial = (C_initial * ptFlowPar->dE * ptFlowPar->dDExpCoefficient * M_PI * pow(d, 2) / 4)
                        * sqrt(2 * deltaP / (ptNGPar->dRhof * (1 - pow(beta, 4))));
    ptFlowPar->dVFlowf = Qf_initial;
    double tolerance = 1e-6;
    double currentC = C_initial;
    double currentReD = calculateReD(Qf_initial, D, ptNGPar->dRhof, ptFlowPar->dDViscosity);
    int iter = 0;
    double prevC = 0;
    do {
        int maxIter = 100;
        prevC = currentC;
        currentC = calculateCd(beta, currentReD, ptFlowPar->dPipeD, ptFlowPar->dPtmode);
        double Qf = (currentC * ptFlowPar->dDExpCoefficient * M_PI * pow(d, 2) / 4)
                    * sqrt(2 * deltaP / (ptNGPar->dRhof * (1 - pow(beta, 4))));
        ptFlowPar->dVFlowf = Qf;
        currentReD = calculateReD(Qf, D, ptNGPar->dRhof, ptFlowPar->dDViscosity);
        iter++;
        if (iter > maxIter) {
            fprintf(stderr, "\n");
        }
    } while (fabs(currentC - prevC) / currentC > tolerance);

    double K = calculateK(ptFlowPar->dPipeType);
    double G_me = calculateRoughnessFactor(ptFlowPar->dPipeD, K, currentC);
    double C_corrected = currentC * G_me;

    ptFlowPar->dCd = C_corrected;
    ptFlowPar->dRoughNessPipe = G_me;
    ptFlowPar->dRnPipe = currentReD;
    double Qn = ptFlowPar->dVFlowf * (ptFlowPar->dFpv * ptFlowPar->dFpv * P1 / ptFlowPar->dPb_M)
                * (ptFlowPar->dTb_M) / Tf;
    ptFlowPar->dVFlowb = Qn;
    ptFlowPar->dMFlowb = ptFlowPar->dVFlowb * ptNGPar->dRhob;
    ptFlowPar->dEFlowb = ptFlowPar->dVFlowb * ptNGPar->dHhvMol * ptFlowPar->dPb_M * 1e-6 / RGASKJ / ptFlowPar->dTb_M;
    ptFlowPar->dVelocityFlow = ptFlowPar->dVFlowf / (M_PI * pow((ptFlowPar->dPipeD / 2000), 2));
}


double CaiLiaoPzxs(const int tempCaiLiao) {
    double CaiLiaoPzxs = 0;
    switch (tempCaiLiao) {
        case 0:
            CaiLiaoPzxs = 11.75;
            break;

        case 1:
            CaiLiaoPzxs = 11.6;
            break;

        case 2:
            CaiLiaoPzxs = 11.16;
            break;

        case 3:
            CaiLiaoPzxs = 11.59;
            break;

        case 4:
            CaiLiaoPzxs = 10.5;
            break;

        case 5:
            CaiLiaoPzxs = 10.0;
            break;

        case 6:
            CaiLiaoPzxs = 10.2;
            break;

        case 7:
            CaiLiaoPzxs = 15.5;
            break;

        case 8:
            CaiLiaoPzxs = 11.5;
            break;

        case 9:
            CaiLiaoPzxs = 10.8;
            break;

        case 10:
            CaiLiaoPzxs = 16.6;
            break;

        case 11:
            CaiLiaoPzxs = 11.4;
            break;

        case 12:
            CaiLiaoPzxs = 16.55;
            break;

        case 13:
            CaiLiaoPzxs = 17.8;
            break;

        case 14:
            CaiLiaoPzxs = 17.2;
            break;
        default: ;
    }
    return CaiLiaoPzxs;
}


double calculateK(int dPipeType) {
    double Jdccd;
    switch (dPipeType) {
        case 0:
            Jdccd = 0.029;
            break;
        case 1:
        case 2:
        case 3:
            Jdccd = 0.075;
            break;
        case 4:
            Jdccd = 0.1;
            break;
        case 5:
            Jdccd = 0.15;
            break;
        case 6:
            Jdccd = 1;
            break;
        case 7:
            Jdccd = 2.1;
            break;
        case 8:
            Jdccd = 0.04;
            break;
        case 9:
            Jdccd = 0.15;
            break;
        case 10:
            Jdccd = 0.13;
            break;
        case 11:
            Jdccd = 0.25;
            break;
        default:

            fprintf(stderr, "δ֪<EFBFBD>Ĺܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: %d\n", dPipeType);
            return FLOW_CALC_ERROR;
    }
    return Jdccd;
}


double calculateRoughnessFactor(double D_pipe, double K, double C) {
    double K_over_D = K / D_pipe;


    if (K_over_D <= 0.0004) {
        return 1.0000;
    }


    double term = (K_over_D * 1e6) - 400;
    if (term < 0) {
        fprintf(
            stderr,
            "K/D <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>÷<EFBFBD>Χ\n");
        return FLOW_CALC_ERROR;
    }

    double G_me = 1 + (0.011 / C) * sqrt(term);
    return G_me;
}


double calculateE(double beta) {
    return 1 / sqrt(1 - pow(beta, 4));
}


double calculateFG(double dRD_Real) {
    return 1 / sqrt(dRD_Real);
}


double calculateFT(double dTb_M, double dTf) {
    return sqrt(dTb_M / dTf);
}


double calculateEpsilon(double dPf, double dDp, double beta, double dKappa) {
    double tau = (dPf - dDp) / dPf;
    double epsilon = 1 - (0.351 + 0.256 * pow(beta, 4) + 0.93 * pow(beta, 8)) * (1 - pow(tau, 1 / dKappa));
    return epsilon;
}


double calculateKappa(double dZf) {
    double gamma = 1.3;
    double Z = dZf;


    double kappa = gamma / (1 - (gamma - 1) * (1 / Z - 1));
    return kappa;
}


double calculateReD(double Qf, double D, double rho, double mu) {
    return (4 * Qf * rho * 1000) / (M_PI * D * mu);
}


double calculateCd(double beta, double ReD, double D_mm, int ptMode) {
    double L1, L2;

    switch (ptMode) {
        case 1:
            L1 = L2 = 0;
            break;
        case 0:
            L1 = L2 = 25.4 / D_mm;
            break;
        case 2:
            L1 = 1.0;
            L2 = 0.47;
            break;
        default:
            fprintf(stderr, "<EFBFBD><EFBFBD>֧<EFBFBD>ֵ<EFBFBD>ȡѹ<EFBFBD><EFBFBD>ʽ: %d\n", ptMode);
            return FLOW_CALC_ERROR;
    }

    double term1 = 0.5961 + 0.0261 * pow(beta, 2) - 0.216 * pow(beta, 8);
    double term2 = 0.000521 * pow(1e6 * beta / ReD, 0.7);
    double A = pow(19000 * beta / ReD, 0.8);
    double term3 = (0.0188 + 0.0063 * A) * pow(beta, 3.5) * pow(1e6 / ReD, 0.3);
    double term4 = (0.043 + 0.08 * exp(-10 * L1) - 0.123 * exp(-7 * L1))
                   * (1 - 0.11 * A) * pow(beta, 4) / (1 - pow(beta, 4));
    double term5 = -0.031 * (2 * L2 / (1 - beta) - 0.8 * pow(2 * L2 / (1 - beta), 1.1))
                   * pow(beta, 1.3);

    double Cd = term1 + term2 + term3 + term4 + term5;


    if (D_mm < 71.12) {
        Cd += 0.011 * (0.75 - beta) * (2.8 - D_mm / 25.4);
    }
    return Cd;
}


double Dlndjs(double tempP_jy, double tempT) {
    double Dlndjs_Dlnd_Data[8][11] = {
        {976, 991, 1014, 1044, 1073, 1114, 1156, 1207, 1261, 1331, 1405},
        {1027, 1040, 1063, 1091, 1118, 1151, 1185, 1230, 1276, 1331, 1389},
        {1071, 1082, 1106, 1127, 1149, 1180, 1211, 1250, 1289, 1335, 1383},
        {1123, 1135, 1153, 1174, 1195, 1224, 1253, 1289, 1324, 1366, 1409},
        {1167, 1178, 1196, 1216, 1236, 1261, 1287, 1318, 1350, 1385, 1421},
        {1213, 1224, 1239, 1257, 1275, 1297, 1320, 1346, 1373, 1403, 1435},
        {1260, 1270, 1281, 1297, 1313, 1333, 1352, 1374, 1396, 1424, 1451},
        {1303, 1312, 1323, 1338, 1352, 1372, 1391, 1412, 1432, 1456, 1482}
    };

    double Dlndjs_Dlnd_T[8] = {
        -15 + 273.15, 0 + 273.15, 15 + 273.15, 30 + 273.15,
        45 + 273.15, 60 + 273.15, 75 + 273.15, 90 + 273.15
    };

    double Dlndjs_Dlnd_P[11] = {0.1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

    double ky, kx;
    int i, m = 0, n = 0;

    if (tempT < Dlndjs_Dlnd_T[0]) {
        tempT = Dlndjs_Dlnd_T[0];
    }
    if (tempT > Dlndjs_Dlnd_T[7]) {
        tempT = Dlndjs_Dlnd_T[7];
    }
    if (tempP_jy < Dlndjs_Dlnd_P[0]) {
        tempP_jy = Dlndjs_Dlnd_P[0];
    }
    if (tempP_jy > Dlndjs_Dlnd_P[10]) {
        tempP_jy = Dlndjs_Dlnd_P[10];
    }

    for (i = 0; i <= 6; i++) {
        if (tempT >= Dlndjs_Dlnd_T[i] && tempT <= Dlndjs_Dlnd_T[i + 1]) {
            m = i;
            break;
        }
    }

    for (i = 0; i <= 9; i++) {
        if (tempP_jy >= Dlndjs_Dlnd_P[i] && tempP_jy <= Dlndjs_Dlnd_P[i + 1]) {
            n = i;
            break;
        }
    }

    if (Dlndjs_Dlnd_P[n + 1] - Dlndjs_Dlnd_P[n] != 0) {
        ky = (tempP_jy - Dlndjs_Dlnd_P[n]) / (Dlndjs_Dlnd_P[n + 1] - Dlndjs_Dlnd_P[n]);
    } else {
        ky = 0;
    }

    if (Dlndjs_Dlnd_T[m + 1] - Dlndjs_Dlnd_T[m] != 0) {
        kx = (tempT - Dlndjs_Dlnd_T[m]) / (Dlndjs_Dlnd_T[m + 1] - Dlndjs_Dlnd_T[m]);
    } else {
        kx = 0;
    }

    double s1 = Dlndjs_Dlnd_Data[m][n] + (Dlndjs_Dlnd_Data[m][n + 1] - Dlndjs_Dlnd_Data[m][n]) * ky;
    double s2 = Dlndjs_Dlnd_Data[m + 1][n] + (Dlndjs_Dlnd_Data[m + 1][n + 1] - Dlndjs_Dlnd_Data[m + 1][n]) * ky;
    return (s1 + (s2 - s1) * kx) / 100000.0;
}

// 压力损失计算
double YaLiSunShi(double tempLiuChuXiShu, double tempZjb, double tempDp, int JieLiuZhuangZhi) {
    double ylss = 0;
    switch (JieLiuZhuangZhi) {
        case 0:
        case 1:
        case 2:
            ylss = tempDp * (sqrt(1 - tempZjb) - tempLiuChuXiShu * pow(tempZjb, 2))
                   / (sqrt(1 - tempZjb) + tempLiuChuXiShu * pow(tempZjb, 2));
            break;
        default: ;
    }
    return ylss;
}


// 标况转工况流量转换
double FlowConvert_BaseToWork(double Pf, double Tf, double Zb, double Zf, double FlowBase, int Cbtj) {
    double tempPn = 0;
    double tempTn = 0;


    switch (Cbtj) {
        case 2:
            tempPn = 101325;
            tempTn = 273.15;
            break;
        case 1:
            tempPn = 101325;
            tempTn = 288.15;
            break;
        case 0:
            tempPn = 101325;
            tempTn = 293.15;
            break;
        case 3:
            tempPn = 10155981;
            tempTn = 288.7055555;
            break;
        default: ;
    }
    return FlowBase * tempPn * Tf * Zf / Pf / tempTn / Zb;
}

// 工况转标况流量转换
double FlowConvert_WorkToBase(double Pf, double Tf, double Zb, double Zf, double FlowWork, int Cbtj) {
    double tempPn = 0;
    double tempTn = 0;

    switch (Cbtj) {
        case 2:
            tempPn = 101325;
            tempTn = 273.15;
            break;
        case 1:
            tempPn = 101325;
            tempTn = 288.15;
            break;
        case 0:
            tempPn = 101325;
            tempTn = 293.15;
            break;
        case 3:
            tempPn = 10155981;
            tempTn = 288.7055555;
            break;
        default: ;
    }
    return FlowWork * Pf * tempTn * Zb / tempPn / Tf / Zf;
}