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发表于 2010-2-24 14:33:49
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补充
#include "udf.h"
#include "sg_mphase.h"
#define T_SAT 373
#define LAT_HT 2.253e+6 (水潜热)
DEFINE_SOURCE(liq_src, cell, pri_th, dS, eqn)
{
Thread *mix_th, *sec_th;
real m_dot_l;
mix_th = THREAD_SUPER_THREAD(pri_th);
sec_th = THREAD_SUB_THREAD(mix_th, 1);
if(C_T(cell, mix_th)>=T_SAT) 如果液相的温度大于饱和温度
{
m_dot_l = -4220*C_VOF(cell, pri_th)*C_R(cell, pri_th)*
fabs(C_T(cell, mix_th) - T_SAT)/ LAT_HT; (4220为水的比热,LAT_HT为水潜热)
dS[eqn] = -0.1*C_R(cell, pri_th)*fabs(C_T(cell, mix_th) - T_SAT)/T_SAT;
(dS这相我不明白什么意思,但估计前面的0.1也应该换成4220)
}
else { 应该是气态转换成液体,需要计算气态所含多余的热量}
m_dot_l = 2028*C_VOF(cell, sec_th)*C_R(cell, sec_th)*
fabs(T_SAT-C_T(cell,sec_th))/ LAT_HT;
(2028蒸汽比热)
dS[eqn] = 0.; (不明白什么意思)
}
return m_dot_l;
}
DEFINE_SOURCE(vap_src, cell, sec_th, dS, eqn)
{
Thread * mix_th, *pri_th;
real m_dot_v;
mix_th = THREAD_SUPER_THREAD(sec_th); mix-th指针代表气相
pri_th = THREAD_SUB_THREAD(mix_th, 0); pri-th指针代表液相
if(C_T(cell, mix_th)>=T_SAT) 如果气相温度大于373(估计这里需要改成液相的)
{
m_dot_v = 0.1*C_VOF(cell, pri_th)*C_R(cell, pri_th)*
fabs(C_T(cell, mix_th) - T_SAT)/T_SAT; |
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