Modifying a equation in Wet steam model

satty_00 · June 13, 2015, 10:50

Greetings everybody,

I am trying to solve moist air condensation through a nozzle using ANSYS Fluent's WET STEAM model. I have written UDFs to modify the wet steam properties (UDWSPF).

In the source term of the 'droplet nucleation' equation, there is a variable 'S' supersaturation which is given by P/Psat. In my case, it becomes Pp/Psat. (i.e)
Instead of total vapour pressure, I should use Partial pressure of vapour.

Is there a way to modify this built in term ? Or any other alternate suggestions ?

wadezaza · October 4, 2017, 11:27

Hello Satty,

Were you able to solve this problem?

satty_00 · November 12, 2017, 16:46

Hi Wadezaza,

I wrote a 2 UDS equations (exact equations used in wet steam model) and integrated them with the mixture model to solve my problem. I did not use the wet steam model.

Sathya.

weijiaLei · June 14, 2022, 05:43

Can you share your code with me？
My Email：1253226575@qq.com,thank you very much!

631arash · October 9, 2022, 10:03

Quote:

Originally Posted by satty_00

Hi Wadezaza,

I wrote a 2 UDS equations (exact equations used in wet steam model) and integrated them with the mixture model to solve my problem. I did not use the wet steam model.

Sathya.

Could you please share the code with me ?

I'm sure many of the members would find this code helpful, so ideally you would upload it somewhere, but if you prefer you can send it directly to me at Bronzemoradian@gmail.com or Moradian@bronze.ir

gt68 · Today, 04:48

Have you solved your problem? Can you send the code to my email 2778354429@qq.com?thank you

gt68 · Today, 04:49

Quote:

Originally Posted by 631arash

Could you please share the code with me ?

I'm sure many of the members would find this code helpful, so ideally you would upload it somewhere, but if you prefer you can send it directly to me at Bronzemoradian@gmail.com or Moradian@bronze.ir

Have you solved your problem? Can you send the code to my email 2778354429@qq.com?thank you

gt68 · Today, 04:51

Quote:

Originally Posted by satty_00

Hi Wadezaza,

I wrote a 2 UDS equations (exact equations used in wet steam model) and integrated them with the mixture model to solve my problem. I did not use the wet steam model.

Sathya.

Have you solved your problem? Can you send the code to my email 2778354429@qq.com?thank you

June 13, 2015, 10:50	Modifying a equation in Wet steam model	#1
satty_00 New Member Sathya Narayanan Join Date: Apr 2014 Posts: 18 Rep Power: 10	Greetings everybody, I am trying to solve moist air condensation through a nozzle using ANSYS Fluent's WET STEAM model. I have written UDFs to modify the wet steam properties (UDWSPF). In the source term of the 'droplet nucleation' equation, there is a variable 'S' supersaturation which is given by P/Psat. In my case, it becomes Pp/Psat. (i.e) Instead of total vapour pressure, I should use Partial pressure of vapour. Is there a way to modify this built in term ? Or any other alternate suggestions ?

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October 4, 2017, 11:27		#2
wadezaza New Member Join Date: Sep 2017 Posts: 5 Rep Power: 7	Hello Satty, Were you able to solve this problem?

November 12, 2017, 16:46		#3
satty_00 New Member Sathya Narayanan Join Date: Apr 2014 Posts: 18 Rep Power: 10	Hi Wadezaza, I wrote a 2 UDS equations (exact equations used in wet steam model) and integrated them with the mixture model to solve my problem. I did not use the wet steam model. Sathya.

June 14, 2022, 05:43		#4
weijiaLei New Member weijiaLei Join Date: Jun 2022 Posts: 2 Rep Power: 0	Can you share your code with me？ My Email：1253226575@qq.com,thank you very much!

Today, 04:48		#6
gt68 New Member Join Date: Mar 2023 Posts: 3 Rep Power: 2	Have you solved your problem? Can you send the code to my email 2778354429@qq.com?thank you