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Search took 0.00 seconds. Search: Posts Made By: ghorrocks
Forum: CFX September 29, 2009, 07:26
Replies: 20
Views: 3,725
Posted By ghorrocks
Another prototype - well you need something to...

Another prototype - well you need something to define your operating point! If your prototype is unknown then how are you meant to analyse it?

Change characteristics - Depends on the change. It...
Forum: CFX September 28, 2009, 19:13
Replies: 20
Views: 3,725
Posted By ghorrocks
So you now need an additional piece of...

So you now need an additional piece of information to fix the remaining variable. It could be the pressure, the flow rate, whatever. You just need one more piece of information to fix it to a point....
Forum: CFX July 30, 2009, 21:15
Replies: 20
Views: 3,725
Posted By ghorrocks
Hi, The equilibrium is established between...

Hi,

The equilibrium is established between the motor producing torque and the rotor absorbing it. Obviously you cannot know the operating point without knowing the torque of both of them.

There...
Forum: CFX July 29, 2009, 18:53
Replies: 20
Views: 3,725
Posted By ghorrocks
Hi, I assume you are analysing the...

Hi,

I assume you are analysing the compressor side of the turbocharger. If you are doing the turbine side just swap the torque signs around on the following comment.

The torque absorbed by the...
Forum: CFX June 2, 2009, 23:55
Replies: 20
Views: 3,725
Posted By ghorrocks
Hi, Yes, that's the idea. Glenn Horrocks

Hi,

Yes, that's the idea.

Glenn Horrocks
Forum: CFX June 2, 2009, 18:47
Replies: 20
Views: 3,725
Posted By ghorrocks
Hi, There are three main parameters to be...

Hi,

There are three main parameters to be determined - rotor speed, flow rate and pressure change. Generally you know one parameter, in this case it looks like you know the flow rate is 10 m3/h....
Forum: CFX June 1, 2009, 18:27
Replies: 20
Views: 3,725
Posted By ghorrocks
Hi, Yes, that is it. You are trying to model...

Hi,

Yes, that is it. You are trying to model enough points on the pressure versus flow rate curve so you know what it looks like. You can then find the operating point where the motor torque...
Forum: CFX April 6, 2009, 01:54
Replies: 20
Views: 3,725
Posted By ghorrocks
hi, I still don't understand your question...

hi,

I still don't understand your question but I will have a guess at what you are asking.

If you mean that you need to find the operating speed for a given flow condition, the best way to do...
Forum: CFX April 2, 2009, 20:57
Replies: 20
Views: 3,725
Posted By ghorrocks
Hi, 1) Do you need to model the solid...

Hi,

1) Do you need to model the solid domain? Unless heat transfer or deflections are important then don't model it.
2) You can specify pretty much any boundary condition parameter as a CEL...
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