ࡱ> '` RbjbjLULU2.?.?zzzzzzz*  B(jjjjIII_ a a a a a a $h:f zIEIII zzjj C C C Ivzjzj_ C I_ C C zzC j6 PT::C _ 0 C :C zC IIC IIIII 3 III IIIIrrzzzzzz A transient heat transfer problem, the geometry see the figure below, there are two domains, the material of domain 1 is different from that of domain 2. For the boundary conditions, a fixed temperature on boundary 7 (for example, 100 [degC]), a fixed temperature on interior boundary 4 (for example, 0 [degC]), other boundaries are all insulated. The initial conditions for the two domains are 0 [degC]. Geometry:  I want to get the heat fluxes of the upside /downside of the interior boundary 4, so I define such variables as below (Method 1 and Method 2, kS and kL are thermal conductivities), the difference between the two methods is the Geometric Scope, which one is correct? Method 1: Method 2:   ----------------------------------------------------------------------------------------------------------------------  The up normal (unx) is the outward normal from the upside. ---------------------------------------------------------------------------------------------------------------------- I am a new user of the Level Set Module, below is a simple model I made: The geometry is composed of a rectangle (Width=0.01m, Height=0.001m) and a line, just as the figure show.  My goal is to make the line (interior boundary) move toward (to the left) with a certain velocity. I used the Level Set Physics only, all settings are as follows: Level Set Model:  EMBED Equation.DSMT4 : 2e-5,  EMBED Equation.DSMT4 : ls.hmax/2, ux: -2e-5, uy: 0 Initial values 1: select domain 1, phi = 0 Initial values 2: select domain 2, phi = 1 Initial Interface: select the line (interior boundary, b1) No flow: select all boundaries except the b1 ---------- The result is shown as below. I just want the boundary, b1 to move toward, but the result is the entire domain 2 moves toward. How should I do to just make b1 move toward? (I know ALE method can do it, what about Level set ?)  ----------------------------------------------------------------------------------------------------------------------  \ ]    U \ ] ^ _ ` m  Z Ƕ٬~wr h1so( h1s5o( hao(hahao( haha ha5o(j1xhimhim5Uo( himo(js:hnUo(jhaUo( hn5o(hnha5o(hnha5 hno(jhnUo(hnhn5o( h1o( hao(ha, ] _  Z j -hgd1sZ [ x { | }  h1s5o(jh1sUo(jhQ~h1sEHU$jAP h1sCJKHUVaJo(jhQ~h1sEHU$j@P h1sCJKHUVaJo(jh1sUjh1sUo( h1so(h1s0182P. A!"#$%S Dd`@  C A4RN`U'@X@*DF"`U'@X@JFIF``LEAD Technologies Inc. V1.01    $.' 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