<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1500032225120_2893">Hi everybody!</div><div id="yui_3_16_0_ym19_1_1500032225120_2893"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">This is my first post on the GetDP list, I'm an electrical engineer that is starting to have a look at the world of numerical methods for PDE. I'm interested in vibro-acoustic and electromagnetics problems but at the moment I'm more focused on the latter. Specifically, 3D models for electric motors and PCB tracks inductance extraction.</div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">I came across GetDP while using Gmsh (thanks a lot for this nice peace of software!!). I like the idea of having single environment where I can do everything so I decided to give it a go.</div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">I had a look at the 2D motor example and I was wandering if the periodic boundaries can be used in the 3D case as well.</div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">Also, always in 3D motor models, when it is required to solve for B through the entire electrical cycle, do you have to create a new geometry/mesh for each rotor position or there is some other way to do that?</div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">Any help on the subject is much appreciated.</div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">Marco</div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">PS: By the way, I'd like to report a bug on a demo file on the OneLab page <a href="http://onelab.info/wiki/GetDP" id="yui_3_16_0_ym19_1_1500032225120_42299" class="enhancr2_9066f83a-d8ae-b0c7-98ed-006c926336a1">GetDP - ONELAB</a></div><div id="yui_3_16_0_ym19_1_1500032225120_42308"><br></div><div id="enhancr2_9066f83a-d8ae-b0c7-98ed-006c926336a1" class="yahoo-link-enhancr-card ymail-preserve-class ymail-preserve-style" style="max-width:400px;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;" contenteditable="false" data-url="http://onelab.info/wiki/GetDP" data-type="yenhancr" data-category="article" data-embed-url="" data-size="medium" dir="ltr"> <a href="http://onelab.info/wiki/GetDP" style="text-decoration:none !important; color: #000 !important;" class="yahoo-enhancr-cardlink" target="_blank" rel="noreferrer" id="yui_3_16_0_ym19_1_1500032225120_42321"> <table class="card-wrapper yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" style="max-width:400px;" id="yui_3_16_0_ym19_1_1500032225120_42320"> <tbody id="yui_3_16_0_ym19_1_1500032225120_42319"><tr id="yui_3_16_0_ym19_1_1500032225120_42318"> <td width="400" id="yui_3_16_0_ym19_1_1500032225120_42317"> <table class="card yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" width="100%" style="max-width:400px;" id="yui_3_16_0_ym19_1_1500032225120_42316"> <tbody id="yui_3_16_0_ym19_1_1500032225120_42315"><tr id="yui_3_16_0_ym19_1_1500032225120_42314"> <td class="card-primary-image-cell" style="background:#000 url('https://s.yimg.com/vv//api/res/1.2/PpTIMckJwei9wMO6mwEMQw--/YXBwaWQ9bWFpbDtmaT1maWxsO2g9MjAwO3c9NDAw/http://onelab.info/onelab_wiki/resources/assets/poweredby_mediawiki_88x31.png.cf.jpg') no-repeat center center;background-size:cover;height:200px;position:relative;" background="https://s.yimg.com/vv//api/res/1.2/PpTIMckJwei9wMO6mwEMQw--/YXBwaWQ9bWFpbDtmaT1maWxsO2g9MjAwO3c9NDAw/http://onelab.info/onelab_wiki/resources/assets/poweredby_mediawiki_88x31.png.cf.jpg" bgcolor="#000000" valign="top" id="yui_3_16_0_ym19_1_1500032225120_42313"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/vv//api/res/1.2/PpTIMckJwei9wMO6mwEMQw--/YXBwaWQ9bWFpbDtmaT1maWxsO2g9MjAwO3c9NDAw/http://onelab.info/onelab_wiki/resources/assets/poweredby_mediawiki_88x31.png.cf.jpg"/></v:rect><![endif]--> <table class="yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" valign="top" style="width:100%;" id="yui_3_16_0_ym19_1_1500032225120_42312"> <tbody id="yui_3_16_0_ym19_1_1500032225120_42311"><tr id="yui_3_16_0_ym19_1_1500032225120_42310"> <td style="background:transparent url('https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png') repeat left top;height:200px;" background="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png" bgcolor="transparent" valign="top" id="yui_3_16_0_ym19_1_1500032225120_42309"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png"/><v:textbox inset="0,0,20px,0"><![endif]--> <table class="yahoo-ignore-table" height="185" style="width:100%;height:185px;min-height:185px;" id="yui_3_16_0_ym19_1_1500032225120_42717"> <tbody id="yui_3_16_0_ym19_1_1500032225120_42721"><tr id="yui_3_16_0_ym19_1_1500032225120_42720"> <td class="card-richInfo2" style="text-align:left;text-align:left;padding:15px 0 0 15px;vertical-align:top;" id="yui_3_16_0_ym19_1_1500032225120_45032"> </td> <td class="card-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top;" id="yui_3_16_0_ym19_1_1500032225120_42719"> <div class="card-share-container"></div> </td> </tr> </tbody></table> <!--[if gte mso 9]></v:textbox></v:rect><![endif]--> </td> </tr> </tbody></table> </td> </tr> <tr id="yui_3_16_0_ym19_1_1500032225120_42733"> <td id="yui_3_16_0_ym19_1_1500032225120_42732"> <table class="card-info yahoo-ignore-table" align="center" cellpadding="0" cellspacing="0" border="0" style="background:#fff;position:relative;z-index:2;width:95%;max-width:380px;border:1px solid #e0e4e9;border-bottom:3px solid #000000;margin-top:-40px;margin-left:auto;margin-right:auto;" id="yui_3_16_0_ym19_1_1500032225120_42731"> <tbody id="yui_3_16_0_ym19_1_1500032225120_42844"><tr id="yui_3_16_0_ym19_1_1500032225120_42843"> <td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;"> </td> <td style="vertical-align:middle;padding:16px 12px;width:99%;" id="yui_3_16_0_ym19_1_1500032225120_42842"> <h2 class="card-title" style="font-size: 16px; line-height:19px; margin:0 0 4px 0;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;word-break:break-word;" id="yui_3_16_0_ym19_1_1500032225120_42841">GetDP - ONELAB</h2> <div class="card-description" style="font-size:11px;line-height:15px;color:#999;word-break:break-word;"></div> </td> <td style="text-align:right;padding:16px 12px 16px 0;"> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </a></div><div id="yui_3_16_0_ym19_1_1500032225120_42336"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_42336">If you download the ONELAB bundle file (in the getting started section) for desktop (I've tried windows and Mac versions)<br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">and try to run the demo on the inductor (3D case) you will find that it doesn't work, this is due to wrong extrude commands starting at line 76 (inductor3D.geo), see an example below:<br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">vol[] = Extrude Surface {surf_ECore[0], {0,0,-Lz/2}};;<br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr">once these are corrected the geometry is built nicely.</div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1500032225120_2893" dir="ltr"><br></div></div></body></html>