Discussion:
Gas Turbine Modeling
(too old to reply)
David Kelsall (Plus Net)
2006-09-16 08:02:49 UTC
Permalink
Hi,

My colleagues and I are trying to model various types of labyrinth seals for
gas turbines. Does anyone know of some simple one- or two- dimensional
modeling equations in addition to the Martin equation - which we already
have.

Thanks,

David Kelsall
Pannawonica
2006-09-18 11:27:08 UTC
Permalink
Post by David Kelsall (Plus Net)
Hi,
My colleagues and I are trying to model various types of labyrinth seals
for gas turbines. Does anyone know of some simple one- or two-
dimensional modeling equations in addition to the Martin equation - which
we already have.
Thanks,
David Kelsall
What do call/looks ?? like a labyrinth seal ..

and its purpose ..
dunno I m imagining that sealing has come a long way since
labyrinth type sealing ..
dont get me wrong Im justr an old mechanic ..


Pannawonica ..
Brent Cullimore
2006-09-18 20:50:34 UTC
Permalink
David

We recently finished up a round of additions of secondary flow
modeling capabilities for our general-purpose thermohydraulic
analyzer, SINDA/FLUINT. We ended up with just the Martin-type equation
as a built-in feature, but we had looked into NASA's KTK code
(knife-to-knife) as a more elaborate 1D option:

http://gltrs.grc.nasa.gov/reports/2005/CR-2003-212367.pdf

We ended up deciding just to use KTK's outputs as inputs to our
system-level code instead of trying to embed all of that into a
commercial code, since the demand is pretty specialized. But I know
you can get the KTK code and documentation from NASA, though there
might be export restrictions.

Brent



On Sat, 16 Sep 2006 09:02:49 +0100, "David Kelsall \(Plus Net\)"
Post by David Kelsall (Plus Net)
Hi,
My colleagues and I are trying to model various types of labyrinth seals for
gas turbines. Does anyone know of some simple one- or two- dimensional
modeling equations in addition to the Martin equation - which we already
have.
Thanks,
David Kelsall
-----------------------------------------------
Brent Cullimore, ***@crtech.com
C&R Technologies, www.crtech.com
Thermal/fluid Software and Consulting

Hot engineering ... Cool software (R)
-----------------------------------------------
David Kelsall (Plus Net)
2006-09-18 23:36:20 UTC
Permalink
Hi Brent,

Thanks. It looks very interesting and just the sort of think I'm after.
Does anyone else have other suggestions?

Cheers,

David
Post by Brent Cullimore
David
We recently finished up a round of additions of secondary flow
modeling capabilities for our general-purpose thermohydraulic
analyzer, SINDA/FLUINT. We ended up with just the Martin-type equation
as a built-in feature, but we had looked into NASA's KTK code
http://gltrs.grc.nasa.gov/reports/2005/CR-2003-212367.pdf
We ended up deciding just to use KTK's outputs as inputs to our
system-level code instead of trying to embed all of that into a
commercial code, since the demand is pretty specialized. But I know
you can get the KTK code and documentation from NASA, though there
might be export restrictions.
Brent
On Sat, 16 Sep 2006 09:02:49 +0100, "David Kelsall \(Plus Net\)"
Post by David Kelsall (Plus Net)
Hi,
My colleagues and I are trying to model various types of labyrinth seals for
gas turbines. Does anyone know of some simple one- or two- dimensional
modeling equations in addition to the Martin equation - which we already
have.
Thanks,
David Kelsall
-----------------------------------------------
C&R Technologies, www.crtech.com
Thermal/fluid Software and Consulting
Hot engineering ... Cool software (R)
-----------------------------------------------
Loading...