|
[ÇóÖú]
±ù¿éÈÚ»¯Ä£ÄâÎÊÌâÇóÖú
±§Ç¸£¬ÎÒºÃÏñÑ¡Ôñ´íÁËÌû×ÓÊôÐÔ£¬ÕâÊÇÒ»¸öÇóÖúÌû£¬·Ç×ÊÔ´Ìù£¬Ã÷ÌìÎÒ»áÔÙ·¢Ò»´Î£¬ÍûÁ½⣬лл
±¾È˸ոսӴ¥fluent£¬ÏÖÔÚÏ£ÍûÓÃfluentÖеÄsolidificationºÍvofÄ£ÐÍȥģÄâ±ù¿éÈÚ»¯£¬¾ßÌåÎÊÌâÊÇ£º½«Ò»¸ö°ëÇò×´µÄ±ù¿éÖÃÓÚÒ»¸öÍ°Öм䣬±ù¿éÖ±¾¶Ô¼ÊÇÍ°Ö±¾¶µÄÒ»°ë£¬Í°Ê£Óಿ·Ö±»¿ÕÆøÌîÂú£¬È»ºó¼ÓÈÈÍ°µÄËÄÖܲ¢±£³ÖÔÚ350k£¬³õʼ±ùµÄζÈÊÇ272k£¬¿ÕÆøζÈÊÇ298k¡£
ÎÊÌâÊÇÒ»µ©ÎÒpatch³õʼvolume fraction¸øphase 2Ò²¾ÍÊDZùµÄʱºò£¬½á¹û¾Í»áÊ®·Ö¹îÒ죬µ«ÊDz»ÉèÖÃvolume fraction¾ÍµÃ²»µ½ÎÒÏëÒªµÄ±ù¿éÈÚ»¯µÄ״̬¡£
ÎÒ½«ÔʼfluentµÄÎĵµÉÏ´«£¬Ï£Íû´ó¼ÒÓÐʱ¼ä°ïÎÒ¿´¿´ÊÇÔõô»ØÊÂ
Ê®·Ö¸Ðл¸÷λ£¡
Èç¹û²»ÏëÏÂÔØÎĵµ£¬fluent¾ßÌåµÄÉèÖÃÊÇ£º
general:
1. mesh seems to be ok with positive values for ¡°minimum volume¡± and ¡°minimum face area¡±.
2. solver pressure based, time unsteady, gravity checked (-9.81 in y direction), 2d-space planner.
models:
1. multiphase model (vof) with 2 eulerian phase. i have activated the check mark of ¡°explicit¡± for volume fraction parameters and ¡°implicit body force¡± for body force formulation.
2.solidification/melting is on (so as the energy equation)
phases:
air -primary, and ice- secondary.
material:
add ice from fluent database and set solidus temperature at 273k; liquidus temperature at 274k; pure solvent melting heat at 330000 j/kg, cp at 2100 j/kg-k and keep the rest as default.
cell zone condition:
zones are air, ice and wall and wall type is solid
boundary condition:
1.only ¡°heat¡± part set with temperature at 350k, which is shown in the picture
2.both fluid zones are automatically set as ¡°interior¡±.
solution method:
using default setting.
solution control: solution control is left untouched.
initialization: standard. initial temperature is 273k, patched ice at 272k, air at 350k,
time step size is 0.05s, number of time steps is 100
1.jpg
heat set.jpg
preview.png
solution controls.jpg
solution method.jpg
[ Last edited by wuxuetianzi on 2018-11-8 at 11:41 ] |
» ±¾Ìû¸½¼þ×ÊÔ´Áбí
-
»¶Ó¼à¶½ºÍ·´À¡£ºÐ¡Ä¾³æ½öÌṩ½»Á÷ƽ̨£¬²»¶Ô¸ÃÄÚÈݸºÔð¡£
±¾ÄÚÈÝÓÉÓû§×ÔÖ÷·¢²¼£¬Èç¹ûÆäÄÚÈÝÉæ¼°µ½ÖªÊ¶²úȨÎÊÌ⣬ÆäÔðÈÎÔÚÓÚÓû§±¾ÈË£¬Èç¶Ô°æȨÓÐÒìÒ飬ÇëÁªÏµÓÊÏ䣺libolin3@tal.com
- ¸½¼þ 1 : ICE_melting.zip
2018-11-08 11:29:26, 811.67 K
» ²ÂÄãϲ»¶
|