<div dir="ltr"><div class="gmail_quote">Dear users,<br><div dir="ltr"> I want to do a simulation as below configuration:<br><br> BOX1BOX2BOX3<br> <br> 3 boxes are contacting with their neighbors in x direction. BOX1 and BOX2 are ice crystal, BOX3 is water. I want to fix molecules in BOX1 and BOX3, so they will not move during simulation. And BOX1 and BOX3 will be given a different fixed temperature, BOX2 will be given a initial temperature.So BOX1 and BOX3 will have a temperature gradient. According to heat transfer theory, the ice in BOX2 will melt from right to left. I want to observe the melting front moving during the simulation.<br>
<br> Thus, my questions are:<br> 1. How to fix some molecules in their position? My case is to fix molecules which are in left and right.<br><br> 2. How to give different and fixed temperature to fixed molecules? My case is to give fixed temperature to molecules in left and right?<br>
<br> 3. How to give a initial temperature to a part of molecules? My case is to give initial temperature to the middle molecules.<br><br> Thanks in advance.<br><br>William<br><br></div>
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