基础知识:弱热联动除单片热联想法外,还有可能触发结构与流体间微弱/松散清晰法两种方法可选用ICFD_CONTROL_CONJ这种方法可能为较低计算时间提供替代方法,但可能需要细网格才能实现相同精度,特别是在墙区类似地,热流时间步可能是独立的,但建议以高度非线性配置保持距离不论选择联动法如何,也可以使用ICFD_DATABASE_HTC提取接口传热系数用户受鼓励切换两种联动法并比较//www.cannycloudtech.com/icfd/basics-examples/weakthrmal//www.cannycloudtech.com/@@site-logo/LS-DYNA-Examples-Logo480x80.png
基础知识:弱热联动
除单片热联想法外,还有可能触发结构与流体间微弱/松散清晰法两种方法可选用ICFD_CONTROL_CONJ这种方法可能为较低计算时间提供替代方法,但可能需要细网格才能实现相同精度,特别是在墙区类似地,热流时间步可能是独立的,但建议以高度非线性配置保持距离不论选择联动法如何,也可以使用ICFD_DATABASE_HTC提取接口传热系数用户受鼓励切换两种联动法并比较
流速边缘
*KEYWORD *TITLE *CONTROL_TERMINATION *CONTROL_THERMAL_TIMESTEP *CONTROL_THERMAL_SOLVER *CONTROL_TIMESTEP *CONTROL_SOLUTION *DATABASE_BINARY_D3PLOT *DEFINE_CURVE_TITLE *ELEMENT_SHELL *ICFD_BOUNDARY_FREESLIP *ICFD_BOUNDARY_FSI *ICFD_BOUNDARY_PRESCRIBED_VEL *ICFD_BOUNDARY_PRESCRIBED_PRE *ICFD_BOUNDARY_NONSLIP *ICFD_CONTROL_CONJ *ICFD_CONTROL_FSI *ICFD_CONTROL_TIME *ICFD_CONTROL_OUTPUT *ICFD_DATABASE_DRAG *ICFD_DATABASE_TEMP *ICFD_DATABASE_HTC *ICFD_INITIAL *ICFD_MAT *ICFD_PART *ICFD_PART_VOL *ICFD_SECTION *INCLUDE *INITIAL_TEMPERATURE_SET *MAT *MESH_BL *MESH_BL_SYM *MESH_SURFACE_ELEMENT *MESH_SURFACE_NODE *MESH_VOLUME *NODE *PARAMETER *PART *SECTION *END
18luck快乐彩Uniteds-LSSC-LSST-E-Mail-info@de-web:http://www.dyamore.de$ $X------------------------------------------------------------------------------ $X $X 1.运行文件原封不动X需要LSDYNAMP112000(或更高级)双精度$X---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------$X------------------------------------------------------------------------------ $X *KEYWORD *TITLE ICFD Weak thermal coupling *INCLUDE mesh.k *INCLUDE struc.k $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ PARAMETERS $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *PARAMETER R T_end 500.0 R dt_plot 5.00 $ $--- Fluid $ R v_inlet 0.5 Rrho_fluid 1.0 R mu_fluid 0.010 R dt_fluid 1.000 RTemp_init 60.000 RTemp_inle 65.000 R HC_fluid 1000.RTFLUID200$ $---+----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 1 $$ Set the following keyword to 0 to trigger strong conjugate heat transfer *ICFD_CONTROL_CONJ $# ctype 1 *ICFD_CONTROL_OUTPUT $# msgl 3 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ ICFD PARTS/ SECTION/ MATERIAL $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_SECTION $# sid 1 *ICFD_MAT $# mid flg ro vis 1 1&rho_fluid &mu_fluid $# hc tc &HC_fluid &tc_fluid *ICFD_PART $# pid secid mid 1 1 1 *ICFD_PART $# pid secid mid 2 1 1 *ICFD_PART $# pid secid mid 3 1 1 *ICFD_PART_VOL $# pid secid mid 10 1 1 $# spid1 spid2 spid3 1 2 3 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ ICFD BOUNDARY/INITIAL CONDITIONS $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_BOUNDARY_PRESCRIBED_VEL $# pid dof vad lcid 1 1 1 1 *ICFD_BOUNDARY_PRESCRIBED_VEL $# pid dof vad lcid 1 2 1 2 *ICFD_BOUNDARY_PRESCRIBED_TEMP $# pid lcid 1 3 *ICFD_BOUNDARY_PRESCRIBED_PRE $# pid lcid 2 2 *ICFD_BOUNDARY_NONSLIP $# pid 3 *ICFD_BOUNDARY_FSI $# pid 3 $$$ To be un-commented for strong Conjugate heat transfer $$$ $*ICFD_BOUNDARY_CONJ_HEAT $$# pid $ 3 *ICFD_INITIAL $# pid vx vy vz temp 0 &Temp_init *DEFINE_CURVE_TITLE Velocity inlet $# lcid sidr sfa sfo offa offo dattyp 1 $# a1 o1 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 *DEFINE_CURVE_TITLE Temp inlet $# lcid sidr sfa sfo offa offo dattyp 3 &Temp_inle $# a1 o1 0.0 1.0 10000.0 1.0 $---+----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 1 2 3 *MESH_BL $# pid nelth 3 1 *MESH_BL_SYM $# pid1 1 *MESH_BL_SYM $# pid1 2 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ DATABASE (OUTPUT) $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_DATABASE_HTC $# out htc tb outdt 2 0 50 *ICFD_DATABASE_FLUX $# pid 2 *ICFD_DATABASE_TEMP $# pid 1 *ICFD_DATABASE_TEMP $# pid 2 *ICFD_DATABASE_TEMP $# pid 3 *DATABASE_BINARY_D3PLOT $# dt &dt_plot *END
除单片热联想法外,还有可能触发结构与流体间微弱/松散清晰法两种方法可选用ICFD_CONTROL_CONJ这种方法可能为较低计算时间提供替代方法,但可能需要细网格才能实现相同精度,特别是在墙区类似地,热流时间步可能是独立的,但建议以高度非线性配置保持距离不论选择联动法如何,也可以使用ICFD_DATABASE_HTC提取接口传热系数用户受鼓励切换两种联动法并比较