[Ahmed Alkaisi]

Hi everyone,
Please, can you advise me which CFD software is the best to solve the evaporation-condensation problem, please?
I have tried ANSYS-fluent, but it seems inappropriate tool for this kind of problems.
I used multiphase model>VOF and patched the liquid zone but still show all phases mixed together
I need to see how much water condensate on the cold cover and discharged due to the cover slope and gravity
help me, please
Thank you

[bkm]

i want to know is euler multiphase vof model is good for solar still....and how to define vapor and air mixture in fluent bcoz i want to define one water and another phase as vapor and air mixture but i am not able to find mixture in fluent i got only way of spices transport for mixture but if i use it multiphase then it turn off wall function for heat source so plz help on it.

[Ahmed Alkaisi]

I am not sure I think you have to use patch and adapt for liquid region
for me I used VOF and Eulurian both not work with me
maybe some setting is wrong
best wishes and good luck
get back to me if you find anything

Originally Posted by bkm

i want to know is euler multiphase vof model is good for solar still....and how to define vapor and air mixture in fluent bcoz i want to define one water and another phase as vapor and air mixture but i am not able to find mixture in fluent i got only way of spices transport for mixture but if i use it multiphase then it turn off wall function for heat source so plz help on it.

[153350007]

Hi Guys,
This is my first post on the forum
I have a problem in modelling solar still. I am using VOF model with energy equation on, k epsilon RNG for flow and DTRM for radiation. My mesh elements look fine (avg element quality .85) but my solution is not converging at all. I initially wanted to go for transient simulation but then have decided to go for steady state due to the time constraint. Please help me with some solution that i can try .
Thank You in advance

[Ahmed Alkaisi]

Originally Posted by 153350007

Hi Guys,
This is my first post on the forum
I have a problem in modelling solar still. I am using VOF model with energy equation on, k epsilon RNG for flow and DTRM for radiation. My mesh elements look fine (avg element quality .85) but my solution is not converging at all. I initially wanted to go for transient simulation but then have decided to go for steady state due to the time constraint. Please help me with some solution that i can try .
Thank You in advance

Same here

Sent from my SM-G900I using CFD Online Forum mobile app

[Ahmed Alkaisi]

Originally Posted by 153350007

Hi Guys,
This is my first post on the forum
I have a problem in modelling solar still. I am using VOF model with energy equation on, k epsilon RNG for flow and DTRM for radiation. My mesh elements look fine (avg element quality .85) but my solution is not converging at all. I initially wanted to go for transient simulation but then have decided to go for steady state due to the time constraint. Please help me with some solution that i can try .
Thank You in advance

Hi did you reach results please

Sent from my SM-G900I using CFD Online Forum mobile app