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4Â¥2017-04-11 20:20:11
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ÎÒÕâÓÐÒ»¸öudf£¬ÓдóÉñ»á¸ÄÂð/***********************************************************************/
/* heat_conductivity.c */
/* UDF for specifying a temperature-dependent heat_conductivity property of fuel */
/***********************************************************************/
#include "udf.h"
#define pi 3.1415
#define qmax 53503100.8
DEFINE_PROPERTY(fuel_heat_conductivity, cell, thread)
{
real heat_conductivity;
real temp = C_T(cell, thread);
heat_conductivity = 38.24 / (temp+402.55) + 4.788 * (temp+273.15) * (temp+273.15) * (temp+273.15) * pow(10, -11);
return heat_conductivity;
}
/***********************************************************************/
/* heat_conductivity.c */
/* UDF for specifying a temperature-dependent heat_conductivity property of gap gas*/
/***********************************************************************/
DEFINE_PROPERTY(gapgas_heat_conductivity, cell, thread)
{
real heat_conductivity;
real temp = C_T(cell, thread);
heat_conductivity = 100 * 0.39 * pow(10, -4) * pow(temp, 0.645);
return heat_conductivity;
}
/***********************************************************************/
/* heat_source.c */
/* UDF for specifying a location-dependent heat_source of fuel  */
/***********************************************************************/
DEFINE_SOURCE(cell_heat_source, cell, thread)
{
real x;
real heat_source;
real t,z;
t= RP_Get_Real("flow-time";
z = x;
heat_source = qmax * sin(pi*(z+0.1)/1.1) * sin (0.2 * pi * t);
return heat_source;
}
2Â¥2017-04-11 12:08:35
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DEFINE_PROPERTY(fuel_heat_conductivity, cell, thread)
{
real heat_conductivity;
real temp = C_T(cell, thread);
heat_conductivity = ***(»»³ÉÄãµÄ²ÄÁϵıí´ïʽ);
return heat_conductivity;
}

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3Â¥2017-04-11 20:19:01
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3Â¥: Originally posted by stanstanne at 2017-04-11 20:19:01
֮ǰ×ö¹ýÕâ·½ÃæµÄÀý×Ó£¬¸øÂ¥Ö÷¸ÄϵÚÒ»¸öµ¼ÈÈÂʵÄUDF

DEFINE_PROPERTY(fuel_heat_conductivity, cell, thread)
{
real heat_conductivity;
real temp = C_T(cell, thread);
heat_conductivity = ***(»»³ÉÄãµÄ ...

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