[求助]寻求流体分析中的动态边界实例

nieyibiao · 发表于 2006-6-23 15:22

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大家好！我现在要做一个齿轮泵方面的流固单向耦合分析（也就是只要求出油液产生的对齿轮泵轮齿上的压力），请问：怎样处理齿轮旋转时的动态边界啊？也就是ALE技术，如果有熟悉的朋友，麻烦帮忙提供几个ALE实例！我的email：<a href="mailtnieyibiao@163.com" target="_blank" >nieyibiao@163.com</A>谢谢！

AaronSpark · 发表于 2006-6-24 07:46

Ansys帮助文档里有一个ALE分析的例子，如下 /batch,list /verify,dv-1101c /title, dv-1101c, Flotran Remeshing: Cylinder pass through a channel /COM,**************************************************** /COM,* Cylinder pass through a channel (pure fluid flow) /COM,* Verify partial domain re-meshing /COM,**************************************************** r1 = 2.5 l1 = 5.0 l2= 20.0 l3=60.0 h = 10.0 rx0= l1+(l2-l1)/2.0 ry0 = h/2.0 nl1 = 5 nl3 = 10 nr=8 nc=8 /PREP7 *DEL,_FNCNAME *DEL,_FNCMTID *DEL,_FNC_C1 *SET,_FNCNAME,'DIS' *DIM,_FNC_C1,,1 *SET,_FNC_C1(1),1.0 ! /INPUT,force.func *DIM,%_FNCNAME%,TABLE,6,3,1 ! ! Begin of equation: a*{TIME} *SET,%_FNCNAME%(0,0,1), 0.0, -999 *SET,%_FNCNAME%(2,0,1), 0.0 *SET,%_FNCNAME%(3,0,1), %_FNC_C1(1)% *SET,%_FNCNAME%(4,0,1), 0.0 *SET,%_FNCNAME%(5,0,1), 0.0 *SET,%_FNCNAME%(6,0,1), 0.0 *SET,%_FNCNAME%(0,1,1), 1.0, -1, 0, 1, 17, 3, 1 *SET,%_FNCNAME%(0,2,1), 0.0, 99, 0, 1, -1, 0, 0 *SET,%_FNCNAME%(0,3,1), 0 ! End of equation: a*{TIME} !--&gt; RECTNG,0,l1,0,h, RECTNG,l1,l2,0,h, RECTNG,l2,l3,0,h, aglue,all CYl4,rx0,ry0,0,45,r1,135 CYl4,rx0,ry0,0,135,r1,225 CYl4,rx0,ry0,0,225,r1,315 CYl4,rx0,ry0,0,315,r1,405 asel,s,,,2 asel,a,,,3 asel,a,,,6 asel,a,,,7 allsel,below,area aglue,all allsel FLST,3,4,5,ORDE,3 FITEM,3,2 FITEM,3,8 FITEM,3,-10 A***A, 4,P51X aplot et,1,141 KEYOPT,1,4,1 type,1 mat,1 asel,s,,,1 esize,.5 mshape,1,2d mshkey,0 amesh,all et,2,141 KEYOPT,2,4,1 type,2 mat,1 asel,s,,,3 esize,.5 mshape,1,2d mshkey,0 amesh,all et,3,141 KEYOPT,3,4,1 type,3 mat,1 asel,s,,,5 esize,2.0 mshape,1,2d mshkey,0 amesh,all nsel,s,loc,x,0 D,ALL,VX,0.0, D,ALL,VY, 0.0 D,ALL,UX,0.0, D,ALL,UY, 0.0 nsel,s,loc,x,l3 D,ALL,pres,0.0 D,ALL,UX,0.0, D,ALL,UY, 0.0 nsel,s,loc,y,0 D,ALL,vy,0.0 D,ALL,UX,0.0, D,ALL,UY, 0.0 nsel,s,loc,y,h D,ALL,vy,0.0 D,ALL,UX,0.0, D,ALL,UY,0.0, lsel,s,,,5 lsel,a,,,23 lsel,a,,,25 lsel,a,,,27 nsll,s,1 d,all,UX,%DIS% d,all,UY,0.0 d,all,VX,1.0 d,all,VY,0.0 allsel cdwrite,db,fluid,cdb, fini ! Flotran Setup /solu FLDATA30,QUAD,MOMD,2, FLDATA30,QUAD,MOMS,2, FLDATA30,QUAD,PRSD,2, FLDATA30,QUAD,PRSS,2, FLDATA30,QUAD,THRD,0, FLDATA30,QUAD,THRS,0, FLDATA30,QUAD,TRBD,0, FLDATA30,QUAD,TRBS,2, /solu FLDATA4,TIME,NUMB,100000, FLDATA4,TIME,TEND,44.0, FLDA,SOLU,ALE,T ! ALE solution FLDATA1,SOLU,FLOW,1 FLDATA1,SOLU,TRAN,1 !FLDATA1,SOLU,TURB,1 FLDATA2,TIME,GLOB,5 FLDATA7,PROT,DENS,CONSTANT FLDATA8,NOMI,DENS,1.0 FLDATA7,PROT,VISC,CONSTANT FLDATA8,NOMI,VISC,1.0 !FLDA,BULK,BETA,1.0e5 FLDA,TIME,STEP, 2.0 ! !!! Newmark method ! FLDATA,OUTP,TAUW,T FLDATA,TIME,METH,NEWM FLDATA,TIME,DELT,0.5 ! !! Set ANSYS-STRUCTURE commands SAVE /COM /COM Re-meshing Commands /COM FLDATA,REMESH,ELEM,ALL ! all defined element re-meshing FLDATA,REMESH,ARMA,10.0 ! maximum aspect ratio FLDATA,REMESH,VOCH,5.0 ! maximum volume change FLDATA,REMESH,ARCH,5.0 ! maximum aspect ratio change SOLVE SAVE finish

nieyibiao · 发表于 2006-6-25 16:14

谢谢!

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[求助]寻求流体分析中的动态边界实例

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