<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi<div class=""><br class=""></div><div class="">i am quite new, so i’m sorry if i’m getting things wrong.</div><div class=""><br class=""></div><div class="">I am trying to simulate a turbulent channel flow, with a passive scalar. </div><div class="">in the streamwise direction, i would like to impose periodic boundary conditions for the flow, and non-periodic for the scalar.</div><div class="">in fact the scalar has a point source near the inlet, and i want to see how that develops downstream. </div><div class=""><br class=""></div><div class="">as far as i understand this is not supported by nek5000, because the last mesh point is identified with the first mesh point when periodic BC are imposed.</div><div class="">correct ?</div><div class=""><br class=""></div><div class="">my question is : could i define two meshes, one for the scalar and one for the velocity ?</div><div class=""><br class=""></div><div class="">thanks a lot for your help !!!</div><div class="">agnese</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Agnese Seminara</div><div class=""><div class="">--------------------------------</div><div class="">CNRS</div><div class="">Laboratoire de physique de la matière condensée</div><div class="">Parc Valrose </div><div class="">avenue J Vallot</div><div class="">06108 Nice, France</div><div class=""><span style="color: rgb(38, 48, 51); font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);" class="">+33 (0) 492 076 775</span></div><div class=""><a href="http://sites.unice.fr/site/aseminara/" class="">http://sites.unice.fr/site/aseminara/</a></div></div></div></div>
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