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void QThermalConductivity::ev_solid_foil() | |
{ | |
double l = thickness[2]; | |
double kapa_s; | |
double H = thickness[3]; | |
T_temp[N[1] - 1] = T[N[1] - 1] + 1.0/chcapacity[2]/ro[2]/H*(-2*kapa[1]*kapa[2]/(kapa[1]*H + kapa[2]*dx)*(T[N[1] - 1] - T[N[1] - 2]) +2/(H+l)*kapa_s*(T[N[1]] - T[N[1] - 1]))*dt; | |
bool t1 = (!flag && (f <= 0) && (T[N[1]] > T_evt) ); | |
bool t2 = (!flag && (f >= 1) && (T[N[1]] < T_evt) ); | |
if (t1) | |
solder_mode = 1; | |
if (t2) | |
solder_mode = 2; | |
if (t1 || t2) | |
flag = 1; | |
if (flag) { | |
kapa_s = kapa[2]*(H+ l)/H*((kapa_l*f + kapa[3]*(1 - f))/l/(kapa[2]/H + (kapa_l*f + kapa[3]*(1 - f))/l)); | |
T_temp[N[1] - 1] = T[N[1] - 1] + 1.0/chcapacity[2]/ro[2]/H*(-2*kapa[1]*kapa[2]/(kapa[1]*H + kapa[2]*dx)*(T[N[1] - 1] - T[N[1] - 2]) +2/(H+l)*kapa_s*(T[N[1]] - T[N[1] - 1]))*dt; | |
T_temp[N[1]] = T_evt; | |
f += dt/(lambda*ro[3]*l)*(mu[1]*(T[N[2] + 1] - T[N[2]]) - kapa_s*(T[N[2]] - T[N[2] - 1])*2/(H + l)); | |
if ((f < 0) || (f > 1)) | |
flag = 0; | |
} else { | |
if (T[N[1]] < T_evt) { | |
T_temp[N[1] - 1] = T[N[1] - 1] + 1.0/chcapacity[2]/ro[2]/H*(-2*kapa[1]*kapa[2]/(kapa[1]*H + kapa[2]*dx)*(T[N[1] - 1] - T[N[1] - 2]) +2*kapa[2]*kapa[3]/(kapa[2]*l + kapa[3]*H)*(T[N[1]] - T[N[1] - 1]))*dt; | |
T_temp[N[1]] = T[N[1]] + 1.0/chcapacity[3]/ro[3]/l*(-2*kapa[2]*kapa[3]/(kapa[2]*l +kapa [3]*H)*(T[N[1]] - T[N[1] - 1]) + | |
mu[1]*(T[N[1] + 1] - T[N[1]]))*dt; | |
} else { | |
T_temp[N[1] - 1] = T[N[1] - 1] + 1.0/chcapacity[2]/ro[2]/H*(-2*kapa[1]*kapa[2]/(kapa[1]*H + kapa[2]*dx)*(T[N[1] - 1] - T[N[1] - 2]) + 2*kapa[2]*kapa_l/(kapa[2]*l + kapa_l*H)*(T[N[1]] - T[N[1] - 1]))*dt; | |
T_temp[N[1]] = T[N[1]] + 1.0/chcapacity[3]/ro[3]/l*(-2*kapa[2]*kapa_l/(kapa[2]*l +kapa_l*H)*(T[N[1]] - T[N[1] - 1]) + | |
mu[1]*(T[N[1] + 1] - T[N[1]]))*dt; | |
} | |
} | |
T_temp[N[1] + 1] = T[N[1] + 1] + 1.0/chcapacity[4]/ro[4]/dx*(-mu[1]*(T[N[1] + 1] - T[N[1]]) + kapa[4]/dx*(T[N[1] + 2] - T[N[1] + 1]))*dt; | |
if (flag_foil) { | |
ddy = sqrt(D0*dg/(k*T_temp[N[1] - 1]*c*(1-c))*qExp(-(Q/(k*T[N[1] - 1])))*dt); | |
if ((dy_f + ddy) > delta/2) { | |
ddy = delta/2 - dy_f; | |
dy_f = delta/2; | |
flag_foil = false; | |
} else { | |
dy_f += ddy; | |
} | |
T_temp[N[1] - 1] = T_temp[N[1] - 1] + 2.0/delta*dg/(3*k)*ddy; | |
} | |
} |
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