有关ansys_cfx做无阀压电微泵的流固耦合分析（需要帮助）
我现在用ansys_cfx做无阀压电微泵的流固耦合分析， 建完模型后，导入cfx-pre中时，出现错误！！请斑竹能帮一下忙，看一看吗？ !-----------------------------------element type-----------------------------------------/prep7
et,3,fluid142,,,,1 !3D Fluid element with diplacement DOF option
et,4,mesh200,6 !Mesh only element (3D quad 4 nodes) to mesh surfaces used in CFXpre
!-------------------------------fluid domain geometry----------------------------------
CYL4, , , 3.5e-3,0,0,360 ! draw a circle which r equal to 3.5e-3
K, 5,3.4e-3, -0.1e-3
K, 6,7e-3, -0.375e-3
K, 7,7e-3, -2.5e-3 ! draw 5, 6, 7, 8, 9,10, 11, 12 keypoints
K, 8,8.5e-3, -2.5e-3
K, 9,8.5e-3, 2.5e-3
K, 10, 7e-3, 2.5e-3
k, 11, 7e-3, 0.375e-3
k, 12, 3.4e-3,0.1e-3
a , 5, 6, 11, 12 ! create a area from 5, 6, 11, 12 keypoints
a, 7, 8, 9, 10 ! create a area from 7, 8, 9, 10
k, 13, -3.4e-3, -0.375e-3
k, 14, -6.98e-3, -0.1e-3
k, 15, -6.98e-3,-2.5e-3
k, 16, -8.48e-3, -2.5e-3 ! draw 13, 14, 15, 16, 17, 18,19,20 keypoints
k, 17, -8.48e-3, 2.5e-3
k, 18, -6.98e-3, 2.5e-3
k, 19, -6.98e-3, 0.1e-3
k, 20, -3.4e-3, 0.375e-3
a, 13, 14, 19, 20 !create a area named 4
a, 15, 16, 17, 18 !create a area named 5
aadd,1,2,3,4,5
adele,all
lfillt, 21,28, 0.2e-3
lfillt, 24, 26, 0.2e-3 ! create fillet between two lines which r=0.2e-3
lfillt, 31, 32, 0.2e-3
lfillt, 29,30, 0.2e-3
k, 27, -3e-3 ! create a keypoint named 27
larc, 22, 23, 27, 3.5e-3 ! create a arc through three keypoints
k, 28, 3e-3 ! create a keypoint named 28
larc, 1, 5, 28, 3.5e-3 !create a arc through three keypoints
al,5, 6, 21,22, 23, 24 ! create a area named 1 by lines
al, 1, 2, 6, 9,10,11, 25, 26, 27, 28 !create a area named 2by lines
al, 3,4,5,17, 18, 19, 29, 30, 31, 32 !create a area named 3 by lines
lplot, all
type, 3
mat, 3 !display all lines
lesi, 17, , ,10, 3,1
lesi, 19, , ,10,0.3,1
lesi, 3, , ,5, -3, 1
lesi, 4, , , 5, -3, 1
lesi, 32, , , 20, -5, 1
lesi, 30, , , 20, -5, 1
lesi, 22, , , 20, 0.2, 1
lesi, 21, , , 20, 0.2, 1
lesi, 23, , , 20, 0.2, 1
lesi, 24, , , 20, 0.2, 1 ! specifies the divisions and spacing ratio on the lines
lesi, 1, , , 5, -3, 1
lesi, 2, , , 5, -3, 1
lesi, 28, , , 20, -5, 1
lesi, 26, , , 20, -5, 1
lesi, 11, , ,10, 0.3,1
lesi, 9, , ,10, 3,1
lesi,18, , ,20, 1, 1
lesi,31, , ,20, 1, 1
lesi,29, , ,20, 1, 1
lesi,5, , ,7, 1, 1
lesi,6, , ,7, 1, 1
lesi,25, , ,20, 1, 1
lesi,27, , ,20, 1, 1
lesi,10, , ,20, 1, 1
asel, s , , ,1
asel, a, , ,2
asel, a, , , 3
amesh, all
k, 29
k, 30, 0,0,2.0e-3
l, 29, 30
VDRAG,1,, , , , ,7,
K, 37
K, 38, 0, 0, 1.0e-3
L, 37, 38
VDRAG,2,, , , , ,38,
VDRAG,3,, , , , ,38,
Aplot
ldele, 7
ldele, 38
kdele,29, 30, 37, 38
!------------------------------FSI interface surface mesh----------------------------------
asel, s , , ,10
nsla, s, 1 !choose all entities below areas(include areas)
type,4 !with mesh only elements
amesh,all !mesh the selected areas
cm,fsi,elem !Create component named fsi
allsel !choose all elements
asel, s , , ,29
nsla, s, 1 !choose all entities below areas(include areas)
type,4 !with mesh only elements
amesh,all !mesh the selected areas
cm,inlet ,elem !Create component named fsi
allsel !choose all elements
asel, s , , ,15
nsla, s, 1 !choose all entities below areas(include areas)
type,4 !with mesh only elements
amesh,all !mesh the selected areas
cm,inlet ,elem !Create component named fsi
allsel !choose all elements
asel, s, , ,10
asel, a, , ,29
asel, a, , , 15
asel, inve
nsla, s, 1 !choose all entities below areas(include areas)
type,4 !with mesh only elements
amesh,all !mesh the selected areas
cm,wall ,elem !Create component named fsi
allsel !choose all elements
cdwrite,db,fluid,cdb !Create fluid.cdb file for CFXpre
finish
这是我写的建模和设置fsi的过程？是不是建模有问题？模型还可以简化吗？ 大家给提点建议吧？谢谢了，斑竹多帮帮忙了 问题已经解决，过会把正确的命令流，发上来！共享 发出来看看~~学习学习~ 说明一下问题以及解决的方法 原理和ansys帮助文件里的压电微泵的例子是一样的，就是有压电效应使硅梁发生变形，从而使腔体体积发生变化，利用收缩管和扩散管原理，实现差量流动。实现微泵的泵送功能。 问：帮助文件里的那个例子的振型图可有得到？ 硅片的只出现一个震荡，然后就是一条直线了，你做出来了吗？ 没有，结果和你描述的一样，郁闷~ 我发现结果文件比较小，不超过100兆。在结果中，应力的分布基本是一样的，相差不大。在流体的查看结果中，你得到的帮助文件的结果了吗? 我的这个例子，在定义流固耦合界面时，有点错误。 感觉mfx的例子很有问题~~太不够详细了~~ 如果有建模过程，就好了。你也做流固耦合吗？Qq：150973349， 有空可以交流一下 你流体的得到的结果，和例子给出的一样吗？
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