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[ÇóÖú] FLUENTµ¥»ú¶àºË²¢ÐÐÔËËãµ¼ÈëudfÖ®ºó£¬³õʼ»¯±¨´í£¬Received signal SIGSEGV ÒÑÓÐ1È˲ÎÓë

ÓÃFLUENTµÄÔ²¹ÜÄÚ³¬ÁÙ½çË®Á÷¶¯´«ÈÈ£¬²ÉÓÃSSTÄ£ÐÍ£¬ÓÃudfÔÚmaterialÎïÐÔÉèÖÃÀïÃæ¶¨Ò峬ÁÙ½çË®µÄÎïÐÔËæÎ¶ȵı仯£¬È»ºó³õʼ»¯µÄʱºò±¨´í£¬´íÎóÐÅÏ¢ÈçÏ£º
==============================================================================

Node 4: Process 19756: Received signal SIGSEGV.

==============================================================================
MPI Application rank 0 exited before MPI_Finalize() with status 2
The fl process could not be started.
ÏÂÃæÊÇÎÒµÄudf´úÂ룬udfÖ±½ÓÔÚ¼Çʱ¾ÀïдµÄ£¬È»ºó°ÑÀ©Õ¹Ãû¸Ä³É.c   £¬ÇëÎÊÊÇudfµÄÎÊÌ⣬»¹ÊÇÎÒ±ðµÄʲôµØ·½Åª´íÁË£¿PS£¬ÎÒ´®ÐÐÔËËãµÄʱºòÒ²±¨´íError:  received a fatal signal (Segmentation fault).
Error Object: #f£¬Çó´óÉñÖ¸½Ì£¡

#include "udf.h"
DEFINE_PROPERTY(viscosity_polynomial,cell,thread)
{
real viscosity;
real temperature;
temperature=C_T(cell,thread);
if(temperature>=540&&temperature<670)
  viscosity=-0.02974+(2.06393E-4)*temperature-(5.32888E-7)*pow(temperature,2)+(6.09625E-10)*pow(temperature,3)-(2.61186E-3)*pow(temperature,4);
else if(temperature>=670&&temperature<720)
  viscosity=1.71089-0.00967*temperature+(2.05003E-5)*pow(temperature,2)-(1.93154E-8)*pow(temperature,3)+(6.82497E-12)*pow(temperature,4);
else
  viscosity=4.60518E-4-(1.89262E-6)*temperature+(3.04391E-9)*pow(temperature,2)-(2.12799E-12)*pow(temperature,3)+(5.55983E-16)*pow(temperature,4);
return viscosity;
}
DEFINE_PROPERTY(density_polynomial,cell,thread)
{
real density;
real temperature;
temperature=C_T(cell,thread);
if(temperature>=540&&temperature<650)
  density=-102064.64697+719.52081*temperature-1.88404*pow(temperature,2)+0.00219*pow(temperature,3)-(9.59734E-7)*pow(temperature,4);
else if(temperature>=650&&temperature<680)
  density=1.05818E8-637783.40085*temperature-1441.25876*pow(temperature,2)-1.44725*pow(temperature,3)+(5.44861E-4)*pow(temperature,4);
else if(temperature>=680&&temperature<720)
  density=1.45053E7-81799.75493*temperature+173.01793*pow(temperature,2)-0.16267*pow(temperature,3)+(5.7363E-5)*pow(temperature,4);
else
  density=9785.72376-39.65886*temperature+0.06117*pow(temperature,2)-(4.2103E-5)*pow(temperature,3)+(1.08805E-8)*pow(temperature,4);
return density;
}
DEFINE_PROPERTY(thermal_conductivity_polynomial,cell,thread)
{
real tc;
real temperature;
temperature=C_T(cell,thread);
if(temperature>=540&&temperature<650)
  tc=-46.31273+0.31446*temperature-(7.86857E-4)*pow(temperature,2)+(8.75221E-7)*pow(temperature,3)-(3.6729E-10)*pow(temperature,4);
else if(temperature>=650&&temperature<680)
  tc=-10013.68647+61.91813*temperature-0.14356*pow(temperature,2)+(1.47931E-4)*pow(temperature,3)-(5.7166E-8)*pow(temperature,4);
else if(temperature>=680&&temperature<750)
  tc=4105.15866-22.5438*temperature+0.04644*pow(temperature,2)-(4.25217E-5)*pow(temperature,3)+(1.46033E-8)*pow(temperature,4);
else
  tc=7.23134-0.02932*temperature+(4.49844E-5)*pow(temperature,2)-(3.0539E-8)*pow(temperature,3)+(7.76698E-12)*pow(temperature,4);
return tc;
}
DEFINE_SPECIFIC_HEAT(specific_heat_polynomial,T,Tref,h,yi)
{
real cp;
if(T>=540&&T<650)
  cp=1.02221E7-70713.70545*T+183.47921*pow(T,2)-0.21157*pow(T,3)+(9.15037E-5)*pow(T,4);
else if(T>=650&&T<675)
  cp=-2.81076E10+(1.69883E8)*T-384994.92162*pow(T,2)+387.72315*pow(T,3)-0.14641*pow(T,4);
else if(T>=675&&T<710)
  cp=-5.27703E9+3.05849E7*T-66448.74541*pow(T,2)+64.13917*pow(T,3)-0.02321*pow(T,4);
else if(T>=710&&T<900)
  cp=6.4899E6-31048.84474*T+55.78053*pow(T,2)-0.04456*pow(T,3)+(1.33526E-5)*pow(T,4);
else
  cp=117954.93316-415.67508*T+0.56772*pow(T,2)-(3.47613E-4)*pow(T,3)+(8.04047E-8)*pow(T,4);
*h=cp*(T-Tref);
return cp;
}
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