<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div>Dear Raghu,<div class=""><br class=""></div><div class="">See Tutorial 4 on <a href="https://gitlab.onelab.info/doc/tutorials/wikis/home" class="">https://gitlab.onelab.info/doc/tutorials/wikis/home</a> : the comments in the .pro file (<a href="https://gitlab.onelab.info/doc/tutorials/blob/master/ElectrostaticsFloating/floating.pro" class="">https://gitlab.onelab.info/doc/tutorials/blob/master/ElectrostaticsFloating/floating.pro</a>) provide a detailed explanation.</div><div class=""><br class=""></div><div class="">Christophe<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 11 Apr 2018, at 06:50, RAGHURAM T.R. <<a href="mailto:121704004@smail.iitpkd.ac.in" class="">121704004@smail.iitpkd.ac.in</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">Dear all,<br class=""><br class=""></div>Could you please explain the "<b class="">GlobalTerm</b>" used in 2D capacitor formulation as below:<br class=""><br class=""><pre class="gmail-wiki">Formulation {
{ Name for_v ; Type FemEquation ;
Quantity {
{ Name v; Type Local; NameOfSpace fs_vglob; }
{ Name Q; Type Global; NameOfSpace fs_vglob [GlobalElectricCharge]; }
{ Name V; Type Global; NameOfSpace fs_vglob [GlobalElectricPotential]; }
}
Equation {
Galerkin { [ epsr[]*Dof{d v} , {d v} ] ; In Vol; Jacobian Vol ; Integration Int ; }
// div epsr[] grad v=0
GlobalTerm { [ -Dof{Q}/eps0 , {V} ] ; In Grouped ; }
}
}
}</pre><br class=""><div class="">I understand that the aim is to calculate the voltage (v) and the Galerkin term implements the Laplace equation in weak form. But what does the GlobalTerm implement? The Grouped domain consists of the two plates (One plate is given a fixed voltage and the other plate is grounded). I also read from the example that the GlobalTerm is used when the variable to be calculated is constant throughout a region and also that the GlobalTerm do not perform integration. I hope my understanding is right. Please help me in understanding this further in this context. <br class=""><br class=""></div><div class="">Many thanks in advance. <br class=""></div><div class=""><br clear="all" class=""><div class=""><div class=""><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class="">Regards,<div class="">Raghu</div></div></div></div>
</div></div></div>
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