heat_flux_1=(1/(1/h_hydrogen+thickness_all/k_wall+1/h_air))*(t_air-t_wall); /*对流...
其中,caf_fac是使用define/boundary-conditions/wall文字命令定义的对流增强系数。 qid+qir=从流体到壁面的总热流=周围环境(域外)的热流。 ANSYS Fluent从壁面上的循环内调用热通量UDF,为了使求解器计算C_T和F_T,提供给cid[1]和cid[2]的值不应为零。 简单来说,DEFINE_HEAT_FLUX通过修改Cir[]和Cid[]进而修...
使用DEFINE_PROFILE定义自定义边界轮廓或单元格区域条件,该条件随空间坐标或时间而变化。 请注意,DEFINE_PROFILE仅允许修改 wall heat flux 的单个值。如果要将 wall heat flux 的源项线性化,并分别考虑热传导和热辐射,则需要使用DEFINE_heat_flux来指定UDF。 F_PROFILE(f, thread, i) =f(x,y,z,t) 输出参数...
4热流量一旦你已经使用 7.2 节和 7.3 节中概括的方法之一编译(并连接)了求解边界条件 UDF,这一 UDF随之在 FLUENT 中将成为可见的和可选择的,你将需要在 User-DefinedFunctionHooks 面板的WallHeatFluxFunctionWallHeatFluxFunction拉歹 U 表(图 8.1.1)中选择它。DefineU5包二DefinedFunctionHooks热流量 UDF 用 ...
n");else{if(HEAT_FLUX_WALL(tf))//如果是热量型壁面Message0("heat flux type wall\n");elseif(TEMPERATURE_WALL(tf))//如果是温度型壁面Message0("temperature type wall\n");elseif(CONVECTION_WALL(tf))//如果是对流型壁面Message0("Convection type wall\n");elseMessage0("Other types wall\n...
• mass flux • species mass fraction (species transport)(组分质量分数,只在组分输运方程中可用) • volume fraction (multiphase models)(体积分数,在多相流中可用) • wall thermal conditions (temperature, heat flux, heat generation rate, heat transfercoefficients, and external emissivity, etc.)...
• mass flux • species mass fraction (species transport)(组分质量分数,只在组分输运方程中可用) • volume fraction (multiphase models)(体积分数,在多相流中可用) • wall thermal conditions (temperature, heat flux, heat generation rate, heat transfercoefficients, and external emissivity, etc.)...
#include "udf.h" DEFINE_PROFILE(wall_heat_flux, thread, position) { real x[ND_ND]; /* this will hold the position vector */ real z; face_t f; begin_f_loop(f,thread) { F_CENTROID(x, f, thread); z =x[2]; F_PROFILE(f, thread, position) = 8000.+10000.*z; } end_f_lo...
• mass flux • species mass fraction (species transport)(组分质量分数,只在组分输运方程中可用) • volume fraction (multiphase models)(体积分数,在多相流中可用) • wall thermal conditions (temperature, heat flux, heat generation rate, heat transfer coefficients, and external emissivity, etc....
• mass flux • species mass fraction (species transport)(组分质量分数,只在组分输运方程中可用) • volume fraction (multiphase models)(体积分数,在多相流中可用) • wall thermal conditions (temperature, heat flux, heat generation rate, heat transfer coefficients, and external emissivity, etc....