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<body><DIV ><FONT face=Arial size=2 >Hello, </FONT></DIV>
<DIV ><FONT face=Arial size=2 ></FONT> </DIV>
<DIV ><FONT face=Arial size=2 >I am trying to create a simple block with an internal hole (a smaller block) using GUI. </FONT></DIV>
<DIV ><FONT face=Arial size=2 ></FONT> </DIV>
<DIV ><FONT face=Arial size=2 >I select the external boundary surfaces to create the volume and then select the internal surfaces as the hole following the message in the GUI windows. However, when I am trying to generate the volume mesh, I get an error message saying that an edge 6 is multiple time in surface mesh.</FONT></DIV>
<DIV ><FONT face=Arial size=2 ></FONT> </DIV>
<DIV ><FONT face=Arial size=2 >I attached the .geo file with this e-mail. Should the internal hole be explicitly defined as a volume? or the characteristic length I choose is not good for the model. </FONT></DIV>
<DIV ><FONT face=Arial size=2 ></FONT> </DIV>
<DIV >Is there a way to visualize the volume mesh to make sure that there is no elements generated inside the hole?</DIV>
<DIV > </DIV>
<DIV ><FONT face=Arial size=2 >Thanks in advance!</FONT></DIV>
<DIV ><FONT face=Arial size=2 ></FONT> </DIV>
<DIV ><FONT face=Arial size=2 >henry</FONT></DIV><BR ><br /><hr />Express yourself instantly with MSN Messenger! <a href='http://clk.atdmt.com/AVE/go/onm00200471ave/direct/01/' target='_new'>MSN Messenger</a></body>
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