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From: Walter Driesen on 8 Jul 2010 09:46
Hi,

I created a new hydraulics domain featuring fluid temperature as an extra across variable in order to model a heat exchanger. I would like to define fluid density, and heat capacity as domain wide parameters.

The problem is that when I create a simscape block for a heat exchanger I will have two different fluids running through the block and these fluids do not have the same domain parameters. So in fact, I would like to be able to chose between which ports domain parameters are propagate.

Is there a way to handle this?

Thanks a lot for your replies.
Reg's
Walter
From: Arnaud Miege on 13 Jul 2010 11:40
"Walter Driesen" <walter.driesen(a)REMOVETHIS.fmtc.be> wrote in message <i14kqs$p8o$1(a)fred.mathworks.com>...
> Hi,
>
> I created a new hydraulics domain featuring fluid temperature as an extra across variable in order to model a heat exchanger. I would like to define fluid density, and heat capacity as domain wide parameters.
>
> The problem is that when I create a simscape block for a heat exchanger I will have two different fluids running through the block and these fluids do not have the same domain parameters. So in fact, I would like to be able to chose between which ports domain parameters are propagate.
>
> Is there a way to handle this?
>
> Thanks a lot for your replies.
> Reg's
> Walter

You probably need to use the Propagation attribute. Have a look at the documentation:
http://www.mathworks.com/access/helpdesk/help/toolbox/physmod/simscape/lang/brtllcx.html#brtlldj

HTH,

Arnaud
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