// // Created by ldeyu on 2025/7/7. // #include "NGCal.h" #include "FlowCal.h" 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; } 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 = ptNGPar->dFpv; ptFlowPar->dOrificeD = ptFlowPar->dOrificeD * ( 1 + 0.000001 * CaiLiaoPzxs(ptFlowPar->dOrificeMaterial) * (ptFlowPar->dTf - 293.15)); ptFlowPar->dPipeD = ptFlowPar->dPipeD * (1 + 0.000001 * CaiLiaoPzxs(ptFlowPar->dPipeMaterial) * ( ptFlowPar->dTf - 293.15)); ptFlowPar->dBeta = ptFlowPar->dOrificeD / ptFlowPar->dPipeD; ptFlowPar->dE = calculateE(ptFlowPar->dBeta); ptFlowPar->dFG = calculateFG(ptNGPar->dRD_Real); ptFlowPar->dFT = calculateFT(ptFlowPar->dTb_M, ptFlowPar->dTf); ptFlowPar->dKappa = calculateKappa(ptNGPar->dZf); ptFlowPar->dDViscosity = Dlndjs(ptFlowPar->dPf / 1e6, ptFlowPar->dTf); ptFlowPar->dDExpCoefficient = calculateEpsilon(ptFlowPar->dPf, ptFlowPar->dDp, ptFlowPar->dBeta, ptFlowPar->dKappa); 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; int maxIter = 100; double currentC = C_initial; double currentReD = calculateReD(Qf_initial, D, ptNGPar->dRhof, ptFlowPar->dDViscosity); int iter = 0; double prevC = 0; do { 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, "δ\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->dVelocityFlow = ptFlowPar->dVFlowf / (M_PI * pow((ptFlowPar->dPipeD / 2000), 2)); } double CaiLiaoPzxs(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; } 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, "δ֪Ĺܵ: %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><>ʽ÷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) / (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, "ֵ֧ȡѹʽ: %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 s1, s2, 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; } s1 = Dlndjs_Dlnd_Data[m][n] + (Dlndjs_Dlnd_Data[m][n + 1] - Dlndjs_Dlnd_Data[m][n]) * ky; 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; }