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MBuck21-Visitor
1-Visitor
March 20, 2013
Solved

The Three Reservoir Problem Revised In Prime

  • March 20, 2013
  • 2 replies
  • 3796 views

I converted an old Mathcad 12 template to MC Prime 2 see attached but for some reason the solve block is not returning a solution. Can anyone see the problem - is it something to do with units or has the solve block been set-up incorrectly for Prime?

Regards, Mark

Best answer by AlanStevens

Have a look at the attached.

Alan

2 replies

V
VladimirN24-Ruby III
24-Ruby III
March 20, 2013

Hi Mark,

Can you upload your instant worksheet for Mathcad 12?

M
MBuck21-VisitorAuthor
1-Visitor
March 20, 2013

Vladmir;

That's my problem I cannot find the original version 12 file. I converted this some time ago and it would appear that I have changed some key aspects from the original but the methodology looks sound to me.

W
Werner_E25-Diamond I
25-Diamond I
March 20, 2013

Mark Buckton wrote:

Vladmir;

That's my problem I cannot find the original version 12 file. I converted this some time ago and it would appear that I have changed some key aspects from the original but the methodology looks sound to me.

Could it be the one of yours in this thread?

http://communities.ptc.com/message/30412#30412

A
AlanStevens19-Tanzanite
19-Tanzanite
March 20, 2013

Within the Solve block shouldn't ZA be Z(QA), ZB be Z(QB) etc?

Alan

M
MBuck21-VisitorAuthor
1-Visitor
March 20, 2013

Alan;

What you suggest is logical and I have done what you have suggested but now Mathcad is complaining that Ep needs to be a function but a function of what? It cannot be a function of flow rate as there are 3 independent flow rates? Any more suggestions?

Mark

A
AlanStevens19-TanzaniteAnswer
19-Tanzanite
March 20, 2013

Have a look at the attached.

Alan

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