Having difficulties in getting water to boil

jigneshrohit99 · April 4, 2016, 12:52

Hello guyz, i am doing boiling of water in fluent.

though i have selected multiphase model,

u-vapor , v- vapor and vf- vapor

all are zero in all iteration.

please help me .its urgent.

[ Moderator note: renamed title of thread from "urgent" to "Having difficulties in getting water to boil". ]

CeesH · April 4, 2016, 13:35

Declaring a problem is urgent is unlikely going to speed up a response; everyone is doing urgent stuff, all the time.

What may help on the other hand is a more complete problem description. There could be a lot of reasons why all stay 0; for example, did you click the 'run calculation' button? (or more likely, is there a heat source in your problem? Without heat, nothing will boil. is gravity enabled - without buoyancy, nothing will flow.)

So can you give some more background on what you are doing?

jigneshrohit99 · April 5, 2016, 13:06

yes there is a heat flux on the top and bottom wall of tube.

During running calculation this is happened.

i am not familiar about buoyancy in flow that you told.

gravity is enabled.

April 4, 2016, 12:52	Having difficulties in getting water to boil	#1
jigneshrohit99 New Member jigneshrohit Join Date: Mar 2016 Posts: 15 Rep Power: 10	Hello guyz, i am doing boiling of water in fluent. though i have selected multiphase model, u-vapor , v- vapor and vf- vapor all are zero in all iteration. please help me .its urgent. [ Moderator note: renamed title of thread from "urgent" to "Having difficulties in getting water to boil". ] Last edited by wyldckat; May 1, 2016 at 15:27. Reason: see "Moderator note:"

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April 4, 2016, 13:35		#2
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	Declaring a problem is urgent is unlikely going to speed up a response; everyone is doing urgent stuff, all the time. What may help on the other hand is a more complete problem description. There could be a lot of reasons why all stay 0; for example, did you click the 'run calculation' button? (or more likely, is there a heat source in your problem? Without heat, nothing will boil. is gravity enabled - without buoyancy, nothing will flow.) So can you give some more background on what you are doing?

April 5, 2016, 13:06		#3
jigneshrohit99 New Member jigneshrohit Join Date: Mar 2016 Posts: 15 Rep Power: 10	yes there is a heat flux on the top and bottom wall of tube. During running calculation this is happened. i am not familiar about buoyancy in flow that you told. gravity is enabled.