【寻找】ADINA流固耦合实例

rainman68

BosFEA版主：我正在学习用ADINA做一些流固耦合的问题，在浏览旧贴时发现，你于2003.9.28回贴"困扰我的一个FSI边界条件问题"时，提到shengjie的两个实例，请问在论坛何处可以找到这两个实例的文件。谢谢。

youlian

我也想要，找到的话，麻烦通知我一声。谢谢
我的email:youlian1111@eyou.com

longqd

也给我一个吧，email : longqd@163.com
谢谢

upclhl

手头有一载下来的PFSI实例，看看是不是兄弟们所要的？共同进步！

rainman68

尽管不是， 也要谢谢upclhl。
我寻找的是减震器等3例， 具体见下述链接：
http://www.simwe.com/cgi-bin/ut/topic_show.cgi?id=23356&h=1#123041

shaoyu1979

怎么我下载下来的340195-pfsi.rar
运行出错，有成功运行的兄弟么？
另外我看了一下，adina和adina_F关于渗透系数的定义是一样的。照理说对于同一土体两者相差一个水力粘性系数的。不知道adina在计算的时候会采用哪个渗透系数。

shaoyu1979

出错信息如下：用的是adina的8.1.0
*** ERROR *** CODE ADF3044:

    Unsuccessful in fluid model for fluid-structure interaction. Last status
    in fluid model is "COMPUTE       ".


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 8.2899E+47 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element -1.7234E+25 corresponds to
    y-velocity at node (label) 1669 and the smallest
    diagonal element -2.0789E-23 corresponds to pressure
    at node (label) 430.

    When this ratio is too large, machine round-off errors may become so
    severe that stable models become unstable.

    Possible causes are:

       * Solution procedure has been divergent;
       * Ratio of largest to smallest elements is too large;
       * No fixed pressure condition in enclosures;
       * Improper units are used in this model. If this is the reason, you
         may either change the input data in another unit system or use the
         automatically nondimensional procedure by choosing proper scales.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 4.6260E+47 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element -7.1256E+24 corresponds to
    y-velocity at node (label) 1819 and the smallest
    diagonal element -1.5403E-23 corresponds to pressure
    at node (label) 410.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 1.1980E+63 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element -1.9867E+38 corresponds to
    y-velocity at node (label) 543 and the smallest
    diagonal element 1.65827E-25 corresponds to pressure
    at node (label) 635.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 6.6070E+51 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element 6.67094E+26 corresponds to
    pressure at node (label) 2235 and the smallest
    diagonal element -1.0096E-25 corresponds to pressure
    at node (label) 191.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 1.6667E+52 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element 1.70836E+27 corresponds to
    pressure at node (label) 1184 and the smallest
    diagonal element 1.02494E-25 corresponds to pressure
    at node (label) 608.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 2.1046E+68 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element -9.2560E+43 corresponds to
    y-velocity at node (label) 517 and the smallest
    diagonal element -4.3979E-25 corresponds to pressure
    at node (label) 514.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 2.6842E+79 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element -4.9044E+54 corresponds to
    y-velocity at node (label) 476 and the smallest
    diagonal element 1.82710E-25 corresponds to pressure
    at node (label) 209.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 2.0641E+80 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element 1.06861E+59 corresponds to
    z-velocity at node (label) 302 and the smallest
    diagonal element -5.1770E-22 corresponds to pressure
    at node (label) 818.


*** WARNING *** CODE ADF2006:

    Model may be unstable! Ratio 4.7209E+85 of largest to smallest diagonal
    elements in factorized coefficient matrix is greater than 1.E+11. The
    largest diagonal element 2.06638E+67 corresponds to
    z-velocity at node (label) 561 and the smallest
    diagonal element -4.3770E-19 corresponds to pressure
    at node (label) 87.

    Too many error/warning messages for code number ADF2006 have been