基础知识:自由对流LS-DYNA模拟显示简单ICFD自由对流问题求解器不可压缩,密度常量微密度变化因温度上升而近似于外力对系统应用和流体热扩展系数、重力和流体温度函数(Boussinesq近似值)。视raleigh数值而定,可观察到不同的旋翼行为//www.cannycloudtech.com/icfd/basics-examples/boussinesq//www.cannycloudtech.com/@@site-logo/LS-DYNA-Examples-Logo480x80.png
基础知识:自由对流
LS-DYNA模拟显示简单ICFD自由对流问题求解器不可压缩,密度常量微密度变化因温度上升而近似于外力对系统应用和流体热扩展系数、重力和流体温度函数(Boussinesq近似值)。视raleigh数值而定,可观察到不同的旋翼行为
LS-DYNA模拟显示简单ICFD自由对流问题求解器不可压缩,密度常量微密度变化因温度上升而近似于外力对系统应用和流体热扩展系数、重力和流体温度函数(Boussinesq近似值)。视raleigh数值而定,可观察到不同的旋翼行为
流温边缘和速度向量
关键词*database_Bire_D3plat*fine_Curve_Title*ICFD_BOUNDIED_EMP*ICFD_BOUNDARY_Y*MESE
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 Natural convection flow *INCLUDE mesh.k $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ PARAMETERS $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *PARAMETER R T_end 30.0 R dt_plot 1.00 $ $--- Fluid $ Rrho_fluid 37.8 R mu_fluid 1.0.00RTUP_w1000RTUP_w20.000RHC/FLUID 0.7RTLIDRthc_fluid1ravll$ Prandtl number : 0.7 $ $ Raleigh number : ( grav thc_fluid L^3 rho_fluid^2 hc_fluid ) / ( tc_fluid) : 10e3 $---+----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 $---+----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 beta &HC_fluid &tc_fluid&thc_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_NONSLIP $# pid 1 *ICFD_BOUNDARY_NONSLIP $# pid 2 *ICFD_BOUNDARY_NONSLIP $# pid 3 *ICFD_BOUNDARY_NONSLIP $# pid 4 *ICFD_BOUNDARY_PRESCRIBED_TEMP $# pid lcid 1 3 *ICFD_BOUNDARY_PRESCRIBED_TEMP $# pid lcid 2 4 *ICFD_INITIAL $# pid vx vy vz temp 0 &Temp_init *DEFINE_CURVE_TITLE Temp wall 1 $# lcid sidr sfa sfo offa offo dattyp 3 &Temp_w1 $# a1 o1 0.0 1.0 10000.0 1.0 *DEFINE_CURVE_TITLE Temp wall 2 $# lcid sidr sfa sfo offa offo dattyp 4 $# a1 o1 0.0 &Temp_w2 10000.0 &Temp_w2 *LOAD_BODY_Y $# lcid sf 1 1 *DEFINE_CURVE_TITLE Gravity force $# lcid sidr sfa sfo offa offo dattyp 1 &grav $# 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 5 $# pid1 pid2 pid3 pid4 1 2 3 4 $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 $ $ $ DATABASE (OUTPUT) $ $ $ $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8 *ICFD_DATABASE_TEMP $# pid 3 *ICFD_DATABASE_TEMP $# pid 4 *DATABASE_BINARY_D3PLOT &dt_plot *END