问题描述呢,一个半径10mm,温度为90℃的钢球放入到盛满水的、完全绝热的边长为100mm的水箱中,水温为20℃,求解0.5小时以后的球与水的温度场的分布。
/PREP7
RECTNG,0,0.05,0,0.05
PCIRC,0,0.01,0,90
AOVLAP,ALL
NUMCMP,AREA
NUMCMP,LINE
ET,1,PLANE77
MP,KXX,1,70
MP,DENS,1,7800
MP,C,1,448
MP,KXX,2,0.61]
MP,DENS,2,100
MP,DENS,2,1000
MP,C,2,4185
/PNUM,LINE,1
LPLOT
LSEL,S,LINE,,3,5
LESIZE,ALL,,,6
LSEL,S,LINE,,1,2
LSEL,A,LINE,,6,7
LESIZE,ALL,,,10
MAT,1
AMESH,1
MAT,2
AMESH,2
FINISH
/SOLU
ANTYPE,TRANS
TIMINT,OFF
TIME,0.01
DELTIM,0.01
ESEL,S,MAT,,1
NSLE,S
D,ALL,TEMP,90
ESEL,S,MAT,,2
NSLE,S
D,ALL,TEMP,20
ALLSEL
SOLVE
TIMINT,ON
TIME,1800
DELTIM,26,2,200
AUTOTS,ON
DDELE,ALL,TEMP
OUTRES,,ALL
SOLVE
SAVE
FINISH
/POST1
SET,LAST
ESEL,S,MAT,,1
NSLE,S
NPLOT
PLNSOL,TEMP, ,0,
ALLSEL,ALL
ESEL,S,MAT,,2
NSLE,S
PLNSOL,TEMP, ,0,
ALLSEL,ALL
PLNSOL,TEMP, ,0,
FINISH
/POST26
NSOL,2,1,TEMP
PLVAR,2
FINISH |