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<div style="margin-top:0;margin-bottom:0;">Hello, <br>
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</span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;"></span></font><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;">
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<div style="margin-top:0;margin-bottom:0;">I got a problem with the attached gmsh .geo file about the extrude command.</div>
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<div style="margin-top:0;margin-bottom:0;">I'm trying to create a quarter of a tube with prism meshes. I need nonstructural meshes for my simulations. Therefore,
<font size="3" face="Calibri,Helvetica,sans-serif" color="black"><span style="font-size:12pt;"><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;">firstly
I created the charmfering part on the top by rotation. </span></font></span></font>Then I created the curve surface of the tube, and then extruded the curve surface in its normal direction as the same layers and same thickness as the charmfering part. <br>
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<div style="margin-top:0;margin-bottom:0;">However, <font size="3" face="Calibri,Helvetica,sans-serif" color="black">
<span style="font-size:12pt;"><font size="3" face="Calibri,Helvetica,sans-serif,EmojiFont,Apple Color Emoji,Segoe UI Emoji,NotoColorEmoji,Segoe UI Symbol,Android Emoji,EmojiSymbols" color="black"><span style="font-size:12pt;">I found the top surface of the
extruded tube part was not corresponding to the charmfering part, as shown in the attached screenshots. The two sides are smaller than the charmfering. It seems when extruding the curve surface in the normal direction, gmsh doesn't fully expand it along the
radius direction. Could you help me to find a way to ideally connect the charmfering part and the extruded part?</span></font></span></font></div>
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<div style="margin-top:0;margin-bottom:0;">Or is there another way to generate the nonstructural prism meshes in this kind of tube geometry? I prefer prism mesh instead of tetrahedron mesh due to the computation cost.<br>
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<div style="margin-top:0;margin-bottom:0;">Thanks for your help in advance!<br>
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<div style="margin-top:0;margin-bottom:0;">Best regards, <br>
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<div style="margin-top:0;margin-bottom:0;">Xing <br>
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<p style="margin-top:0; margin-bottom:0"><i><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(117,123,128)">--</span></i></p>
<p style="margin-top:0; margin-bottom:0"><i><span style="color:rgb(117,123,128); font-family:"Times New Roman",Times,serif; font-size:12pt">ir. Xing Liu</span></i></p>
<p style="margin-top:0; margin-bottom:0"><i><span style="color:rgb(117,123,128); font-family:"Times New Roman",Times,serif; font-size:12pt">PhD student</span></i></p>
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<p style="margin-top:0; margin-bottom:0"><i><span style="color:rgb(117,123,128); font-family:"Times New Roman",Times,serif; font-size:12pt">Vrije Universiteit Brussel</span></i></p>
<p style="margin-top:0; margin-bottom:0"><i><span style="color:rgb(117,123,128); font-family:"Times New Roman",Times,serif; font-size:12pt">Faculty of Engineering Sciences</span></i></p>
<p style="margin-top:0; margin-bottom:0"><span style="color:rgb(117,123,128)"><i><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(117,123,128)">Dept. Mechanics of Materials and Constructions (MeMC)</span></i></span><i><span style="color:rgb(117,123,128)"></span></i><br>
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