基础教程:强FSILS-DYNA模拟显示使用强FSI简单FSI串联问题实心和流水密度非常接近从定义上讲,当使用固态机械器和CFD代码(“加积质量效果”)之间的显式联动时,这类案例不稳定减少不稳定性需要强流体结构交互要想实现这一点,两个求解者需要同时推进,从而强制使用隐式求解器固态//www.cannycloudtech.com/icfd/basics-examples/strong_fsi//www.cannycloudtech.com/@@site-logo/LS-DYNA-Examples-Logo480x80.png
基础教程:强FSI
LS-DYNA模拟显示使用强FSI简单FSI串联问题实心和流水密度非常接近从定义上讲,当使用固态机械器和CFD代码(“加积质量效果”)之间的显式联动时,这类案例不稳定减少不稳定性需要强流体结构交互要想实现这一点,两个求解者需要同时推进,从而强制使用隐式求解器固态
流速边缘
*BOUNDARY_PRESCRIBED_MOTION_RIGID *CONTROL_IMPLICIT_DYNAMICS *CONTROL_IMPLICIT_GENERAL *CONTROL_IMPLICIT_SOLUTION *CONTROL_TERMINATION *DATABASE_BINARY_D3PLOT *DEFINE_CURVE_FUNCTION *DEFINE_CURVE_TITLE *ELEMENT_SHELL *END *ICFD_BOUNDARY_FREESLIP *ICFD_BOUNDARY_FSI *ICFD_BOUNDARY_PRESCRIBED_VEL *ICFD_BOUNDARY_PRESCRIBED_PRE *ICFD_BOUNDARY_NONSLIP *ICFD_CONTROL_FSI *ICFD_CONTROL_TIME *ICFD_DATABASE_DRAG *ICFD_MAT *ICFD_PART *ICFD_PART_VOL *ICFD_SECTION *INCLUDE *KEYWORD *MAT *MESH_BL *MESH_SURFACE_ELEMENT *MESH_SURFACE_NODE *MESH_VOLUME *NODE *PARAMETER *PART *SECTION *TITLE
18luck快乐彩Uniteds-LSSC-LSST-E-Mail-info@de-web:http://www.dyamore.de$ $X------------------------------------------------------------------------------ $X $X 1.运行文件原封不动US-DYNAR8.0(或更高)双精度X-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------$X------------------------------------------------------------------------------ $X *KEYWORD *TITLE ICFD Cylinder flow - Strong FSI *INCLUDE mesh.k *INCLUDE struc.k *INCLUDE implicit.k $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ PARAMETERS $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *PARAMETER R T_end 40.0 R dt_plot 0.20 $ $--- Fluid $ R v_inlet 1.0 Rrho_fluid 1.0 R mu_fluid 0.005 R dt_fluid 0.050 $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ ICFD CONTROL CARDS $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_CONTROL_TIME $# ttm dt &T_end &dt_fluid *ICFD_CONTROL_FSI $# owc 0 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ ICFD PARTS/ SECTION/ MATERIAL $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_SECTION $# sid 1 *ICFD_MAT $# mid flg ro vis 1 1&rho_fluid &mu_fluid *ICFD_PART $# pid secid mid 1 1 1 *ICFD_PART $# pid secid mid 2 1 1 *ICFD_PART $# pid secid mid 3 1 1 *ICFD_PART $# pid secid mid 4 1 1 *ICFD_PART_VOL $# pid secid mid 10 1 1 $# spid1 spid2 spid3 spid4 1 2 3 4 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ ICFD BOUNDARY/INITIAL CONDITIONS $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_BOUNDARY_PRESCRIBED_VEL $# pid dof vad lcid 1 1 1 1 *ICFD_BOUNDARY_PRESCRIBED_VEL $# pid dof vad lcid 1 2 1 2 *ICFD_BOUNDARY_PRESCRIBED_PRE $# pid lcid sf death birth 2 2 *ICFD_BOUNDARY_FREESLIP $# pid 3 *ICFD_BOUNDARY_NONSLIP $# pid 4 *ICFD_BOUNDARY_FSI $# pid 4 *DEFINE_CURVE_TITLE Velocity inlet $# lcid sidr sfa sfo offa offo dattyp 1 $# a1 o1 0.0 0.5O06.0 &v_inlet 10000.0 &v_inlet *DEFINE_CURVE_TITLE Pressure outlet $# lcid sidr sfa sfo offa offo dattyp 2 $# a1 o1 0.0 0.0 10000.0 0.0 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ ICFD MESH KEYWORDS $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *MESH_VOLUME $# volid 10 $# pid1 pid2 pid3 pid4 1 2 3 4 *MESH_BL $# pid nelth 4 2 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ DATABASE (OUTPUT) $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_DATABASE_DRAG $# pid 4 *DATABASE_BINARY_D3PLOT &dt_plot *end
LS-DYNA模拟显示使用强FSI简单FSI串联问题实心和流水密度非常接近从定义上讲,当使用固态机械器和CFD代码(“加积质量效果”)之间的显式联动时,这类案例不稳定用户用显性DYNA求解器验证不稳定性减少不稳定性需要强流体结构交互要想实现这一点,两个求解者需要同时推进并同时分时段,从而强制使用隐式求解器固态用户给固态流体提供不同的时段时段时段时段时段时段,二中最小的时段段段段段段段段段段段段段段段使用