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楼主 |
发表于 2011-6-21 09:25:00
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原帖由 syangecust 于 2011-6-20 17:08 发表
楼主你好,我也稍微懂一点儿冷凝模拟的东西,可将你的udf贴上来,看看是否哪个地方改动的不对!
UDF如下:
#include "udf.h"
#include "sg_mphase.h"
#define T_SAT 338.2 /*饱和压力下,R134A的饱和温度*/
#define LAT_HT 1.3134e5 /*饱和压力下,冷媒液化时的潜热*/
DEFINE_SOURCE(liq_src, cell, sec_th, dS, eqn)
{
Thread *mix_th, *pri_th;
real m_dot_l;
mix_th = THREAD_SUPER_THREAD(sec_th);
pri_th = THREAD_SUB_THREAD(mix_th, 0);
if(C_T(cell, mix_th)<=T_SAT)
{m_dot_l = 0.1*C_VOF(cell, pri_th)*C_R(cell, pri_th)*fabs(C_T(cell, mix_th) - T_SAT)/T_SAT;
dS[eqn] = 0.;}
else
{m_dot_l = -0.1*C_VOF(cell, sec_th)*C_R(cell, sec_th)*fabs(T_SAT-C_T(cell,mix_th))/T_SAT;
dS[eqn] = -0.1*C_R(cell, sec_th)*fabs(T_SAT-C_T(cell,sec_th))/T_SAT;}
return m_dot_l;
}
DEFINE_SOURCE(vap_src, cell, pri_th, dS, eqn)
{
Thread *mix_th, *sec_th;
real m_dot_v;
mix_th = THREAD_SUPER_THREAD(pri_th);
sec_th = THREAD_SUB_THREAD(mix_th, 1);
if(C_T(cell, mix_th)<=T_SAT)
{m_dot_v = -0.1*C_VOF(cell, pri_th)*C_R(cell, pri_th)*fabs(C_T(cell, pri_th) - T_SAT)/T_SAT;
dS[eqn] = -0.1*C_R(cell, pri_th)*fabs(C_T(cell, pri_th) - T_SAT)/T_SAT;}
else
{m_dot_v = 0.1*C_VOF(cell, sec_th)*C_R(cell, sec_th)*fabs(T_SAT-C_T(cell,mix_th))/T_SAT;
dS[eqn] = 0.;}
return m_dot_v;
}
DEFINE_SOURCE(enrg_src, cell, mix_th, dS, eqn)
{
Thread *pri_th, *sec_th;
real m_dot;
pri_th = THREAD_SUB_THREAD(mix_th, 0);
sec_th = THREAD_SUB_THREAD(mix_th, 1);
if(C_T(cell, mix_th)<=T_SAT)
{m_dot=0.1*C_VOF(cell, pri_th)*C_R(cell, pri_th)*fabs(T_SAT-C_T(cell, pri_th))/T_SAT;
dS[eqn]=-0.1*C_VOF(cell, pri_th)*C_R(cell, pri_th)/T_SAT;}
else
{m_dot=-0.1*C_VOF(cell, sec_th)*C_R(cell, sec_th)*fabs(T_SAT-C_T(cell,sec_th))/T_SAT;
dS[eqn] = -0.1*C_VOF(cell, sec_th)*C_R(cell, sec_th)/T_SAT;}
return LAT_HT*m_dot;
}
用的MIXTURE模型,激活了slip velocity和body force
欢迎各位大侠批评指正!
[ 本帖最后由 wq_0805 于 2011-6-21 09:26 编辑 ] |
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