<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Stefan, Yes, you should assume the air is well mixed across the fictitious surface, so you could include a high ventilation exchange by specifying this in the operations file, or if you have a flow network, then you can have a large opening (low flow resistance) between the two zones. Regards Paul Smith Stefan wrote: <blockquote cite="mid:28595D3B6B6116438C3AB5A9AFFC13172890AE@VUIEXCH2.ad.nottingham.ac.uk" type="cite"> <title>esp-r Digest, Vol 21, Issue 6</title> <meta http-equiv="Content-Type" content="text/html; "> <meta content="MSHTML 6.00.6000.16640" name="GENERATOR"> <div id="idOWAReplyText81960" dir="ltr"> <div dir="ltr">Dear Paul,</div> <div dir="ltr">Out of interest..</div> <div dir="ltr"> </div> <div dir="ltr">How would this effect fluid flow? Would you need to add some ventilation operation to connect the zones? </div> </div> <div dir="ltr"> </div> <div dir="ltr">Regards,</div> <div dir="ltr">Stefan </div> <div dir="ltr"> <hr tabindex="-1"></div> <div dir="ltr">From: <a class="moz-txt-link-abbreviated" href="mailto:esp-r-bounces@lists.strath.ac.uk">esp-r-bounces@lists.strath.ac.uk</a> on behalf of <a class="moz-txt-link-abbreviated" href="mailto:esp-r-request@lists.strath.ac.uk">esp-r-request@lists.strath.ac.uk</a> Sent: Tue 15/04/2008 12:00 To: <a class="moz-txt-link-abbreviated" href="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a> Subject: esp-r Digest, Vol 21, Issue 6 </div> <div> Send esp-r mailing list submissions to         <a class="moz-txt-link-abbreviated" href="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a> To subscribe or unsubscribe via the World Wide Web, visit         <a moz-do-not-send="true" href="http://lists.strath.ac.uk/mailman/listinfo/esp-r">http://lists.strath.ac.uk/mailman/listinfo/esp-r</a> or, via email, send a message with subject or body 'help' to         <a class="moz-txt-link-abbreviated" href="mailto:esp-r-request@lists.strath.ac.uk">esp-r-request@lists.strath.ac.uk</a> You can reach the person managing the list at         <a class="moz-txt-link-abbreviated" href="mailto:esp-r-owner@lists.strath.ac.uk">esp-r-owner@lists.strath.ac.uk</a> When replying, please edit your Subject line so it is more specific than "Re: Contents of esp-r digest..." Today's Topics:    1.  imaginary surface (F. G. Azzaro)    2. Re: imaginary surface (paul strachan) ---------------------------------------------------------------------- Message: 1 Date: Mon, 14 Apr 2008 18:39:18 +0100 From: "F. G. Azzaro" <a class="moz-txt-link-rfc2396E" href="mailto:azzarognu@gmail.com"><azzarognu@gmail.com></a> Subject: [esp-r]  imaginary surface To: <a class="moz-txt-link-abbreviated" href="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a> Message-ID:         <a class="moz-txt-link-rfc2396E" href="mailto:81f674a20804141039x33698fc6g309cec562d1d3500@mail.gmail.com"><81f674a20804141039x33698fc6g309cec562d1d3500@mail.gmail.com></a> Content-Type: text/plain; charset="iso-8859-1"  Hello ESP-r users, I have a question about the materials.  Is it possible to separate a big volume in different parts by inserting an "imaginary" surface ? My objective is to analyze a big room in different parts, but I think, I need an "imaginary" surface to do that.  Do you have any suggestion ?, thanks Regards, Francesco -------------- next part -------------- An HTML attachment was scrubbed... URL: <a moz-do-not-send="true" href="http://lists.strath.ac.uk/archives/esp-r/attachments/20080414/d9be342a/attachment-0001.html">http://lists.strath.ac.uk/archives/esp-r/attachments/20080414/d9be342a/attachment-0001.html</a> ------------------------------ Message: 2 Date: Mon, 14 Apr 2008 19:29:06 +0100 From: paul strachan <a class="moz-txt-link-rfc2396E" href="mailto:paul@esru.strath.ac.uk"><paul@esru.strath.ac.uk></a> Subject: [esp-r] Re: imaginary surface To: "F. G. Azzaro" <a class="moz-txt-link-rfc2396E" href="mailto:azzarognu@gmail.com"><azzarognu@gmail.com></a>,         <a class="moz-txt-link-rfc2396E" href="mailto:'esp-r@lists.strath.ac.uk'">"'esp-r@lists.strath.ac.uk'"</a> <a class="moz-txt-link-rfc2396E" href="mailto:esp-r@lists.strath.ac.uk"><esp-r@lists.strath.ac.uk></a> Message-ID: <a class="moz-txt-link-rfc2396E" href="mailto:4803A272.3010503@esru.strath.ac.uk"><4803A272.3010503@esru.strath.ac.uk></a> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Dear Francesco, All zones must be fully bounded. Therefore, you should create a "fictitious" construction that will have minimal impact on the heat transfer. In essence you should have a thin layer which is very conductive, no appreciable thermal mass, perfectly transparent and no solar absorption.  Details can be found in the FAQ on the website under "fictitious surfaces and zone subdivision". Regards Paul F. G. Azzaro wrote: > Hello ESP-r users, > I have a question about the materials. > Is it possible to separate a big volume in different parts by > inserting an "imaginary" surface ? > My objective is to analyze a big room in different parts, but I think, > I need an "imaginary" surface to do that. > Do you have any suggestion ?, thanks > > Regards, > > Francesco > ------------------------------------------------------------------------ > > _______________________________________________ > esp-r mailing list > <a class="moz-txt-link-abbreviated" href="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a> > <a moz-do-not-send="true" href="http://lists.strath.ac.uk/mailman/listinfo/esp-r">http://lists.strath.ac.uk/mailman/listinfo/esp-r</a> ------------------------------ _______________________________________________ esp-r mailing list <a class="moz-txt-link-abbreviated" href="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a> <a moz-do-not-send="true" href="http://lists.strath.ac.uk/mailman/listinfo/esp-r">http://lists.strath.ac.uk/mailman/listinfo/esp-r</a> End of esp-r Digest, Vol 21, Issue 6 ************************************ </div> This message has been checked for viruses but the contents of an attachment may still contain software viruses, which could damage your computer system: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation. <pre wrap=""> <hr size="4" width="90%"> _______________________________________________ esp-r mailing list <a class="moz-txt-link-abbreviated" href="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a> <a class="moz-txt-link-freetext" href="http://lists.strath.ac.uk/mailman/listinfo/esp-r">http://lists.strath.ac.uk/mailman/listinfo/esp-r</a></pre> </blockquote> <pre class="moz-signature" cols="72">-- *************************************************************** Dr P A Strachan email: <a class="moz-txt-link-abbreviated" href="mailto:paul@esru.strath.ac.uk">paul@esru.strath.ac.uk</a> ESRU, Dept. of Mechanical Eng. phone: +44 141 548 2041 University of Strathclyde fax: +44 141 552 5105 Glasgow G1 1XJ, UK <a class="moz-txt-link-freetext" href="http://www.esru.strath.ac.uk">http://www.esru.strath.ac.uk</a> *************************************************************** </pre> </body> </html>