David Wright

Thanks.

Hi, I have modelled gas flow in a well bore where pressure drop ais significant. When I change the correlation in the general tab of the pipe segment inputs between Beggs & Brill, Lockhart & Martinell and Petalas & Aziz, the pressure drop remains exactly the same. Phase is vapour all the way up the bore. Do all these correlations to default to single pressure drop for vapour flow? Any thoughts. Dave

I understand that updated pipe network files are available. How do you install this functionality? Tx. David

Thanks and noted. David

I have a windows PC. I have the latest version of DWSIM. I have downloaded the pipe network dll and pd files. How to I access or install this feature into DWSIM?

Everton, thanks for your email..it worked. And suddenly, my 63 year old brain is recalling GW Basic basics! Thanks again. David From: Everton da Silva Marques evertonm@users.sourceforge.net Sent: 13 June 2021 19:28 To: [pcbasic:discussion] general@discussion.pcbasic.p.re.sourceforge.net Subject: [pcbasic:discussion] Re: A very basic question You could try: chdir "esi" run "esi.bas" Everton Em dom, 13 de jun de 2021 12:56, David Wright djmwright@users.sourceforge.net djmwright@users.sourceforge.net...

OK. I have put the esi folder into my documents. I have loaded it using Load"esi\esi.bas". Message says OK. Then I enter Run. The PC bleeps and PC-Basic closes. I think that the program has to access other files (e.g. .dat) in the esi folder. Could that be a reason why it isn't working?David From: Rob Hagemans robhagemans@users.sourceforge.net Sent: 13 June 2021 07:52 To: [pcbasic:discussion] general@discussion.pcbasic.p.re.sourceforge.net Subject: [pcbasic:discussion] Re: A very basic question Hi,...

Rob, Thanks for responding. Sorry.I am not very knowledgeable and just want to run an old gwbasic program. I have a folder called ESI which contains a file called ESI.bas (and a lot of other linked files). I have put this folder into My Documents. I've totally forgotten how to run programs in basic. I seem to recall shortcuts in the form "gwbasic.exe esi" when the Gwbasic code and the ESI files were in the same location. How do I run ESI with pc-basic? David From: Rob Hagemans robhagemans@users.sourceforge.net...