<html><head></head><body><div style="font-family:verdana, helvetica, sans-serif;font-size:13px;"><div style="font-family:verdana, helvetica, sans-serif;font-size:13px;"><div>Hi All,</div><div>I have a very simple geometry for an enhanced oil and gas recovery project. The domain height and width are 6 m and 2000 m respectively. The radius of well is 0.1 m.</div><div><br></div><div>I want the surface to be mesh with the triangular element only. However, after inspection, I found that there are Line elements also. I did a similar mesh for the structured mesh and found the same result. Is there any way to mesh the domain as triangular only. I do not want any line element. </div><div><br></div><div>//------------Geo file--------------</div><div><span><div>Mesh.Algorithm = 1;</div><div>Mesh.Optimize = 1;</div><div><br></div><div>lc1=1;</div><div>lc4=2;<br></div><div><br></div><div>Point(0) = {0.1, 0, 0, lc1};</div><div>Point(1) = {2000.1, 0, 0, lc4};</div><div>Point(2) = {2000.1, 0, -6, lc4};</div><div>Point(3) = {0.1, 0, -6, lc1};</div><div><br></div><div>//+<br></div><div>Line(1) = {0, 1};</div><div>//+</div><div>Line(2) = {1, 2};</div><div>//+</div><div>Line(3) = {2, 3};</div><div>//+</div><div>Line(4) = {3, 0};</div><div>//+</div><div>Line Loop(1) = {3, 4, 1, 2};</div><div>//+</div><div>Plane Surface(1) = {1};</div><div>//+</div></span><br></div><div>I have attached test.gmsh.msh which is similar to the mesh file for the gmsh. The test.msh file is the mesh file for our code. Any co-operation will be appreciable.</div><div><br></div><div>Thanks in advance.</div><div><br></div><div>Regards,</div><div>Mohammad</div><div><br></div><div class="ydp614ab490signature"><div style="font-family:verdana, helvetica, sans-serif;font-size:13px;"><p class="ydp9e997025MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal;"><span> </span></p><div style="color:rgb(34, 34, 34);font-family:arial, sans-serif;font-size:small;"><div dir="ltr"><div dir="ltr"><p style="line-height:normal;margin-bottom:0pt;"><br></p></div></div></div><p></p></div></div></div></div></body></html>