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sunhao1208

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[ÇóÖú] ÓйØfluentÖÐÇóspecific heat µÄUDF±àд

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DEFINE_SPECIFIC_HEAT(specific_heat,cell,thread)
{
  real cp;
  real temp=C_T(cell, thread);
  if (temp<318.3)
  cp = 1457.28;
  else if(temp>324.6)
  cp = 1668.7;
  else
  cp=1458.3+210.4*(temp-318.3)/6.3;
  return cp;
}

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Error: E:/ansys with heat/Nouveau dossier 1/geometrique_files/dp0/FFF/Fluent/conduct2.c: line 56: parse error.
Error: E:/ansys with heat/Nouveau dossier 1/geometrique_files/dp0/FFF/Fluent/conduct2.c: line 59: parse error.
Error: E:/ansys with heat/Nouveau dossier 1/geometrique_files/dp0/FFF/Fluent/conduct2.c: line 60: temp: undeclared variable
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2Â¥2018-01-20 08:53:05
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cheersend

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3Â¥2018-01-20 18:54:35
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sunhao1208

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
2Â¥: Originally posted by ÌìÀ¼²»À¶ at 2018-01-20 08:53:05
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sunhao1208

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by cheersend at 2018-01-20 18:54:35
CPµÄUDFÒª´øìÊÖµ¼ÆËãµÄ¹«Ê½£¬²»ÊÇÖ»ËãCPµÄ£¬Çë²Î¿¼°ïÖúÎļþµÄÀý×Ó

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5Â¥2018-01-20 19:22:10
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GؼSky

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by cheersend at 2018-01-20 18:54:35
CPµÄUDFÒª´øìÊÖµ¼ÆËãµÄ¹«Ê½£¬²»ÊÇÖ»ËãCPµÄ£¬Çë²Î¿¼°ïÖúÎļþµÄÀý×Ó

ÄãºÃ£¬ÏëÇë½ÌÈçºÎͨ¹ýUDF±àд±ÈÈÈÈÝËæÎ¶ȱ仯¡£
DEFINE_SPECIFIC_HEAT(my_user_cp, T, Tref, h, yi)£¬Õâ¸öºêÖÐTref,yi·Ö±ðÊÇʲô¡£ÒÔ¼°ÏÔìÊ*h = cp*(T-Tref)£¬ÊÇ·ñÐèҪд³É»ý·ÖÐÎÊ½ÄØ£¿
»ºÂý¶ø¼á¶¨µØ£¬´Ó×öºÃÿһ¼þСÊ¿ªÊ¼¡££¨18800386686£©
6Â¥2021-08-23 20:48:07
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GؼSky

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
5Â¥: Originally posted by sunhao1208 at 2018-01-20 19:22:10
ллÄ㣬ÎÒ¿´ÁËÀïÃæµÄÀý×Ó£¬»¹ÊDz»Ì«¶®£¬Äܲ»ÄÜÁô¸öÁªÏµ·½Ê½ÎÒÃǽ»Á÷Ò»ÏÂ...

ÄãºÃ£¬ÏëÇë½ÌÈçºÎͨ¹ýUDF±àд±ÈÈÈÈÝËæÎ¶ȱ仯¡£
DEFINE_SPECIFIC_HEAT(my_user_cp, T, Tref, h, yi)£¬Õâ¸öºêÖÐTref,yi·Ö±ðÊÇʲô¡£ÒÔ¼°ÏÔìÊ*h = cp*(T-Tref)£¬ÊÇ·ñÐèҪд³É»ý·ÖÐÎÊ½ÄØ£¿
»ºÂý¶ø¼á¶¨µØ£¬´Ó×öºÃÿһ¼þСÊ¿ªÊ¼¡££¨18800386686£©
7Â¥2021-08-23 20:48:25
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Marma_lade

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
6¥: Originally posted by GؼSky at 2021-08-23 20:48:07
ÄãºÃ£¬ÏëÇë½ÌÈçºÎͨ¹ýUDF±àд±ÈÈÈÈÝËæÎ¶ȱ仯¡£
DEFINE_SPECIFIC_HEAT(my_user_cp, T, Tref, h, yi)£¬Õâ¸öºêÖÐTref,yi·Ö±ðÊÇʲô¡£ÒÔ¼°ÏÔìÊ*h = cp*(T-Tref)£¬ÊÇ·ñÐèҪд³É»ý·ÖÐÎÊ½ÄØ£¿...

TrefÊÇÖ¸¡°reference temperature for the enthalpy calculation¡±, ¼´¼ÆËãìÊֵʱµÄ²Î¿¼Î¶È
yiÊÇÖ¸¡°pointer to array of mass fractions of gas phase species¡±,¼´ÆøÏà×é·ÖÖÊÁ¿·ÖÊýµÄÖ¸Õë
ÏÔìʲ»ÐèҪд³É»ý·ÖÐÎʽ
ÏÂÃæÊÇUDFµÄÀý×Ó
/******************************************************************
UDF that computes specific heat and sets the sensible enthalpy to the referenced value
* * * * **************************************************************
#include "udf.h"
DEFINE SPECIFIC HEAT(my_user_cp, T, Tref, h, yi)
{
real cp=2000;
*h=cp*(T-Tref);
return cp;
}
8Â¥2022-06-16 11:07:38
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