How can I increase Re or Velocity at each iteration run as input data ?

karta513165 · December 7, 2019, 04:37

There is a 2-D tube. Water through a straight horizontal flat tube and heat flux is on the top wall. Reynolds number was assumed to be
increased at each iteration run as input data.

I need to compare different Re or Velocity of water, heating by a constant heat flux. It's like each section with different velocity shows in one figure but not a process(non continue heating from inlet to outlet).

For example, I can see a contour of Re 2000 at beginning and maybe Re 5000 at the end of the tube, so that I can calculate the heat transfer at each section.

How can I set increased velocity in fluent ?

AlexanderZ · December 9, 2019, 01:03

you can use UDF or transient table
https://www.youtube.com/watch?v=s_YkmvFH8VQ

December 7, 2019, 04:37	How can I increase Re or Velocity at each iteration run as input data ?	#1
karta513165 New Member chiu Join Date: Dec 2019 Posts: 1 Rep Power: 0	There is a 2-D tube. Water through a straight horizontal flat tube and heat flux is on the top wall. Reynolds number was assumed to be increased at each iteration run as input data. I need to compare different Re or Velocity of water, heating by a constant heat flux. It's like each section with different velocity shows in one figure but not a process(non continue heating from inlet to outlet). For example, I can see a contour of Re 2000 at beginning and maybe Re 5000 at the end of the tube, so that I can calculate the heat transfer at each section. How can I set increased velocity in fluent ?

December 9, 2019, 01:03		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	you can use UDF or transient table https://www.youtube.com/watch?v=s_YkmvFH8VQ __________________ best regards ****************************** press LIKE if this message was helpful

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