1
*CONTROL_ENERGY 2 2 2 2 *CONTROL_SHELL 20.0 1 -1 1 2 2 1 *CONTROL_TIMESTEP
0.0000 0.9000 0 0.00 0.00 *CONTROL_TERMINATION
$1000.0000 0 0.00000 0.00000 0.00000 0.800E+05 0 0.00000 0.00000 0.00000 *CONTROL_SPH 2 0 $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ TIME HISTORY $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $
*DATABASE_BINARY_D3PLOT 200.0E+00 $0.500E+00
*DATABASE_BINARY_D3THDT 0.8000E+02
*DATABASE_EXTENT_BINARY 0 0 3 1 0 0 0 0 0 0 4 0 0 0 $ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ SECTION DEFINITIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $
*SECTION_SOLID 2 1
*SECTION_SPH 1 $
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ MATERIAL DEFINITIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $
*MAT_RIGID
2 7.80 2.10 0.300000 0.0 0.0 0.0 1.00 7.00 7.00
*MAT_RIGID
3 7.80 2.10 0.300000 0.0 0.0 0.0 1.00 6.00 7.00
*MAT_RIGID
4 7.80 2.10 0.300000 0.0 0.0 0.0 1.00 6.00 7.00
*MAT_NULL 1 1.00 *EOS_GRUNEISEN
1 .1484000 1.9790000 .0000000 .0000000 .1100000 3.0000000 .0000000 .0000000 $ $ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ PARTS DEFINITIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ $ *PART
Part 1 for Mat 4 and Elem Type 1 1 1 1 1 0 0 0 $ *PART
Part 2 for Mat 2 and Elem Type 1
2 2 2 0 0 0 0 $ *PART
Part 3 for Mat 3 and Elem Type 1 3 2 3 0 0 0 0 *PART
Part 3 for Mat 3 and Elem Type 1 4 2 4 0 0 0 0 $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ RIGID BOUNDRIES $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $
*LOAD_BODY_Y 2,1.0
*DEFINE_CURVE 2
0.0,9.8E-10 1.0,9.8E-10 $
*DEFINE_CURVE
1 0 1.000 1.000 0.000 0.000
0.000000000000E+00 1.000000000000E-04 1.000000000000E+05 1.000000000000E-04 *BOUNDARY_PRESCRIBED_MOTION_RIGID 3 2 0 1 -1.00 0 0.000 0.000 $ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ NODE DEFINITIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $
*CONTACT_AUTOMATIC_NODES_TO_SURFACE 1 1 3 2 0 0 0 0
0.000 0.000 0.000 0.000 0.000 0 0.000 0.0000E+08 0.000 0.000 0.100 0.000 0.000 0.000 0.000 0.000
1 0.1000000 3 *SET_PART_LIST 1 2,3,4 *INCLUDE mesh.k *END
3、 ALE(接触算法)
采用接触算法分析流固耦合问题也是一种选择,在液面波动幅度较小时可以采用此种方法进行分析,流体用ALE算法描述,结构采用Lagrange算法;需要注意的一点:对ALE网格要进行滑顺处理,以控制网格形态,保证求解精度。 下面是某算例的部分命令流:
*KEYWORD *TITLE ALE $
*DATABASE_FORMAT 0 $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ CONTROL OPTIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $
*CONTROL_PARALLEL 1
*CONTROL_ENERGY 2 2 2 2 *CONTROL_ALE
3 1 2 1.0000000 1.0000000 0.000000 1.0000000 1.0000e+9 0.000000 0.000000 2 *CONTROL_TIMESTEP
0.0000 0.9000 0 0.00 0.00 *CONTROL_CONTACT
0.0000000 0.0000000 1 0 2 0 0 0 0 0 0
*CONTROL_TERMINATION