Creating Registers on Fluent

Markat · January 11, 2013, 17:49

In my CFD simulation I only have a fluid zone. I would like to patch an initial temperatur (500K) on a boundary set as wall(named as wall_part). Should I use registers? How could i create registers for a wall?

Yanlong Li · January 12, 2013, 01:48

You can just set the boundary condition of the wall as 500K.

Markat · January 12, 2013, 09:30

If I do so the temperature will constantly be 500K! I would like to have an initial temperatur of 500K to compute heat loses (transient problem).

Yanlong Li · January 13, 2013, 06:14

You should use UDF to define the heat loss.

Markat · January 13, 2013, 13:35

My problem is not the definition of heat loss. My problem is the definiton of registers in order to be able to define an initial temperature...

Yanlong Li · January 14, 2013, 04:36

I am sorry,

Marion · January 14, 2013, 05:56

Hi,

Why do you need registers (I've never used them)? Isn't it possible for you to initialize at 500K in the initialize panel?

Marion.

Markat · January 14, 2013, 15:11

Hallo Yanlong Li,
you don't have to excuse

! Thank you for trying to help!

Hi Marion,
thank you for your reply. I could initialize the solution, but what if I want to patch an initial temperature? Patching can only be defined in zones and registers (but no walls)...

January 11, 2013, 17:49	Creating Registers on Fluent	#1
Markat New Member Join Date: Oct 2012 Posts: 27 Rep Power: 6	In my CFD simulation I only have a fluid zone. I would like to patch an initial temperatur (500K) on a boundary set as wall(named as wall_part). Should I use registers? How could i create registers for a wall?

January 14, 2013, 15:11		#8
Markat New Member Join Date: Oct 2012 Posts: 27 Rep Power: 6	Hallo Yanlong Li, you don't have to excuse! Thank you for trying to help! Hi Marion, thank you for your reply. I could initialize the solution, but what if I want to patch an initial temperature? Patching can only be defined in zones and registers (but no walls)...

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January 12, 2013, 01:48		#2
Yanlong Li Member Yanlong Li Join Date: Jan 2013 Location: BeiJing Posts: 47 Rep Power: 6	You can just set the boundary condition of the wall as 500K.

January 12, 2013, 09:30		#3
Markat New Member Join Date: Oct 2012 Posts: 27 Rep Power: 6	If I do so the temperature will constantly be 500K! I would like to have an initial temperatur of 500K to compute heat loses (transient problem).

January 13, 2013, 06:14		#4
Yanlong Li Member Yanlong Li Join Date: Jan 2013 Location: BeiJing Posts: 47 Rep Power: 6	You should use UDF to define the heat loss.

January 13, 2013, 13:35		#5
Markat New Member Join Date: Oct 2012 Posts: 27 Rep Power: 6	My problem is not the definition of heat loss. My problem is the definiton of registers in order to be able to define an initial temperature...

January 14, 2013, 04:36		#6
Yanlong Li Member Yanlong Li Join Date: Jan 2013 Location: BeiJing Posts: 47 Rep Power: 6	I am sorry,

January 14, 2013, 05:56		#7
Marion Senior Member Marion Join Date: Jul 2012 Location: France Posts: 122 Rep Power: 7	Hi, Why do you need registers (I've never used them)? Isn't it possible for you to initialize at 500K in the initialize panel? Marion.