fluent空化udf，结果对不上
我编写了fluent内置Schnerr and Sauer空化模型的udf文件，但是导入udf的结果和使用fluent内置Schnerr and Sauer空化模型的结果不一样，希望各位大佬帮我看看到底有什么问题。
模型公式：
#include "udf.h"
#include "sg_mphase.h"
#define P_v 30000
DEFINE_MASS_TRANSFER(water_to_vapor,cell,thread,from_index,from_species_index,to_index,to_species_index)
{
real m_dot;
Thread *gas, *liq;
liq = THREAD_SUB_THREAD(thread, from_index);
gas = THREAD_SUB_THREAD(thread, to_index);
m_dot=0.0;
if(C_P(cell, thread)<=P_v)
m_dot=3108.725549*C_R(cell,liq)*C_R(cell,gas)/C_R(cell,thread)*sqrt(2.0/3.0*(P_v-C_P(cell,thread))/C_R(cell,liq));
else
m_dot=-621.74511*C_R(cell,liq)*C_R(cell,gas)/C_R(cell,thread)*sqrt(2.0/3.0*(C_P(cell,thread)-P_v)/C_R(cell,liq));
return( m_dot);
}
还有
可以用c_v += 1.0*(1.0+0.1/20*fabs(0.5*(C_DUDX(cell,thread)+C_DUDY(cell,thread)+C_DVDX(cell,thread)+C_DVDY(cell,thread))))表示吗
