简单来说,DEFINE_HEAT_FLUX通过修改Cir[]和Cid[]进而修改qid和qir,最后达到修改热通量的目的。 Example 这是从其他UDF中截取的关于DEFINE_HEAT_FLUX的一部分程序,不可直接运行,只是用来理解一下DEFINE_HEAT_FLUX的运行方式。 DEFINE_HEAT_FLUX(heat_flux, f, t, c0, t0, cid, cir){ real Ew= epsilon_w/...
你如果是要加载到壁面边界的话就用DEFINE_PROFILE，如果不是在边界上的话你只能转化成相邻网格的能量源项然后用DEFINE_SOURCE，或者用DEFINE_HEAT_FLUX，但是后者你要注意判别热流的方向，Fluent中默认的热流方向是从面上相邻网格C0流向C1如果不判别可能加载的时候会导致热流流向相反。
满意答案咨询官方客服 你如果是要加载到壁面边界的话就用DEFINE_PROFILE,如果不是在边界上的话你只能转化成相邻网格的能量源项然后用DEFINE_SOURCE,或者用DEFINE_HEAT_FLUX,但是后者你要注意判别热流的方向,Fluent中默认的热流方向是从面上相邻网格C0流向C1如果不判别可能加载的时候会导致热流流向相反。00分享举报您可能...
你采用前面的那一个，在边界条件里面选择热流量的边界条件，可以解决你的问题。后面的宏，是解决怎么计算...
"上面的udf只能在同一个边界条件内进行判断，如何实现不同边界条件处的温度值作为判断依据"不明白...“...
I wish to define a heat flux field that only has z-component. Is there a way to do it? Thanks a lot!! Hi but what kind of heat flux are you considering ? If it's a heat flux value that varies with the height Z its easy to define a function of z and apply that to your bou...
How to define heat flux #1 Coriolius Guest Posts: n/a I am new to STAR-CD. I am trying to model a problem of air flowing over some heat producing machine in a confined space with ventilation. I can define the shape of the machines and the heat producion rate are known. In that ...
lk zhu Guest Posts: n/a Hi experts! Does anybody know how to define the tempreture or heat flux of free surface by UDF? I am working with VOF and Solidifaction&Melting.thanks « Previous Thread | Next Thread » Thread Tools Search this Thread Show Printable Version Email this Page...
aDefine a computation that calculates the heat flux vector based on contributions from atoms in the specified group. This can be used by itself to measure the heat flux into or out of a reservoir of atoms, or to calculate a thermal conductivity using the Green-Kubo formalism. 定义在指定的小...
Define a computation that calculates the heat flux vector based on contributions from atoms in the specified group. This can be used by itself to measure the heat flux into or out of a reservoir of atoms, or to calculate a thermal conductivity using the Green-Kubo formalism....