<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1518863199182_12077" dir="ltr">I am using Gmsh GUI.</div><div dir="ltr" id="yui_3_16_0_ym19_1_1518863199182_18936"><span id="yui_3_16_0_ym19_1_1518863199182_18965" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_18966">And I have a problem when meshing volumes that are in contact (being the contact surface of one greater than that of the other). </span></span><span id="yui_3_16_0_ym19_1_1518863199182_18967" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_18968">The problem is that in this way the meshes of both volumes do not share all the nodes on the contact surface.</span></span><br><span id="yui_3_16_0_ym19_1_1518863199182_24070" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_24071"><span id="yui_3_16_0_ym19_1_1518863199182_24072" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_24073">I believe that this could be done with the cut and merge faces option, which no longer exists in the latest versions.<br></span></span></span></span><span id="yui_3_16_0_ym19_1_1518863199182_24074" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_24075">I have read that now it must be addressed through Boolean operations.</span> <span id="yui_3_16_0_ym19_1_1518863199182_24076">But, on the one hand, I do not want to unite the volumes, since they are going to be of different materials.</span> <span id="yui_3_16_0_ym19_1_1518863199182_24077">And on the other hand I do not understand how these operations can be done in the GUI environment.<br></span></span><span id="yui_3_16_0_ym19_1_1518863199182_27493" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_27497"></span></span><span tabindex="-1" id="yui_3_16_0_ym19_1_1518863199182_29203" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_29204">May you suggest me how to approach this problem?</span> <span id="yui_3_16_0_ym19_1_1518863199182_29205">Is there an example similar to what I mention?</span><br id="yui_3_16_0_ym19_1_1518863199182_29206"><span id="yui_3_16_0_ym19_1_1518863199182_29207">Thanks in advance for your comments.</span></span><br><span id="yui_3_16_0_ym19_1_1518863199182_15539" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_15540"><span id="yui_3_16_0_ym19_1_1518863199182_17249" lang="en"><span id="yui_3_16_0_ym19_1_1518863199182_17250"></span></span></span></span></div></div></body></html>