https://forums.autodesk.com/t5/cfd-forum/boundary-conditions-for-suppressed-surface/m-p/8241676#M8858 <P>I have trying&nbsp;to model air condition system for a room,&nbsp;I recognise&nbsp;that it is<SPAN> numerically wrong to apply a flow rate, pressure, or temperature to an internal surface of a model.</SPAN></P><P><SPAN>therefor&nbsp; I suppressed the duct mesh and apply BC on the duct end .</SPAN></P><P><SPAN>please check the below picture along with the attached model .</SPAN></P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-center" image-alt="Sppressed mesh.jpg" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/541821i207C95DF56189029/image-size/medium?v=v2&amp;px=400" role="button" title="Sppressed mesh.jpg" alt="Sppressed mesh.jpg" /></span></SPAN></P><P>&nbsp;</P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-center" image-alt="G2.JPG" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/541819i0350D1ED151EAD69/image-size/medium?v=v2&amp;px=400" role="button" title="G2.JPG" alt="G2.JPG" /></span></SPAN></P><P>&nbsp;</P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-center" image-alt="G1.JPG" style="width: 378px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/541822iED1040A05BAF6A04/image-size/medium?v=v2&amp;px=400" role="button" title="G1.JPG" alt="G1.JPG" /></span></SPAN></P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Mon, 03 Sep 2018 12:29:57 GMT eng.youssefezzat88 2018-09-03T12:29:57Z https://forums.autodesk.com/t5/cfd-forum/boundary-conditions-for-suppressed-surface/m-p/8241676#M8858 <P>I have trying&nbsp;to model air condition system for a room,&nbsp;I recognise&nbsp;that it is<SPAN> numerically wrong to apply a flow rate, pressure, or temperature to an internal surface of a model.</SPAN></P><P><SPAN>therefor&nbsp; I suppressed the duct mesh and apply BC on the duct end .</SPAN></P><P><SPAN>please check the below picture along with the attached model .</SPAN></P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-center" image-alt="Sppressed mesh.jpg" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/541821i207C95DF56189029/image-size/medium?v=v2&amp;px=400" role="button" title="Sppressed mesh.jpg" alt="Sppressed mesh.jpg" /></span></SPAN></P><P>&nbsp;</P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-center" image-alt="G2.JPG" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/541819i0350D1ED151EAD69/image-size/medium?v=v2&amp;px=400" role="button" title="G2.JPG" alt="G2.JPG" /></span></SPAN></P><P>&nbsp;</P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-center" image-alt="G1.JPG" style="width: 378px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/541822iED1040A05BAF6A04/image-size/medium?v=v2&amp;px=400" role="button" title="G1.JPG" alt="G1.JPG" /></span></SPAN></P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Mon, 03 Sep 2018 12:29:57 GMT https://forums.autodesk.com/t5/cfd-forum/boundary-conditions-for-suppressed-surface/m-p/8241676#M8858 eng.youssefezzat88 2018-09-03T12:29:57Z https://forums.autodesk.com/t5/cfd-forum/boundary-conditions-for-suppressed-surface/m-p/8243014#M8859 <P>This is OK but could be better. I would recess the boundary condition further inside the pipe if I was you, a little more realistic <span class="lia-unicode-emoji" title=":winking_face:">😉</span></P> Tue, 04 Sep 2018 07:50:53 GMT https://forums.autodesk.com/t5/cfd-forum/boundary-conditions-for-suppressed-surface/m-p/8243014#M8859 Jon.Wilde 2018-09-04T07:50:53Z