CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Programming & Development

The feasibility to solve incompressible,single-phase,gravitational flow by interFoam

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 28, 2024, 04:55
Question The feasibility to solve incompressible,single-phase,gravitational flow by interFoam
  #1
New Member
 
Join Date: Jun 2022
Posts: 3
Rep Power: 4
Gunther_123 is on a distinguished road
Dear Foamers,

I am looking for a solver for incompressible, single-phase, gravitational flow. I have seen that some people on CFD Online prefer adding a gravity source term to pisoFoam. You can find the discussion here:

single phase, incompressible, flow with gravity


I am wondering if interFoam could be used to solve this problem by setting the alpha.water in the fluid domain to 1. While it seems like it might work, I am not entirely sure.

Thank you!

Last edited by Gunther_123; July 29, 2024 at 10:02.
Gunther_123 is offline   Reply With Quote

Old   July 31, 2024, 07:26
Default
  #2
Senior Member
 
Join Date: Apr 2020
Location: UK
Posts: 735
Rep Power: 14
Tobermory will become famous soon enough
Before answering, we need to know where are the buoyancy effects coming from ... is there heat transfer? is there mixing of gases with different molecular weights?

If it is all one fluid, then try something like buoyantSimpleFoam (or equivalent - this solver has changed name various times), i.e. a solver from the heatTransfer stable.

If there are multiple gases, then you'll need to use something like rhoReactingBuoyantFoam (again that is the OF v8 name), turning off the reactions and radiation.

I wouldn't recommend using interFoam - that is designed for 2phase free surface flows.
Tobermory is offline   Reply With Quote

Old   August 3, 2024, 15:40
Default
  #3
New Member
 
Join Date: Jun 2022
Posts: 3
Rep Power: 4
Gunther_123 is on a distinguished road
Hi Tobermory,

Thank you very much for your kind reply! In my situation, the buoyancy effects are due to static hydrostatic pressure. There is no heat transfer, and only one phase, water, is present. From my perspective, when the alpha is constant in the region, the momentum equation can be simplified, similar to using pisoFoam with gravity. This is why I am considering using interFoam for my case.

Best wishes!
Gunther_123 is offline   Reply With Quote

Reply

Tags
gravity, incompressible, interfoam, single-phase

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
interFoam Open Channel Flow interFoam: high velocities & small time steps Charly23 OpenFOAM Running, Solving & CFD 1 May 28, 2024 05:22
Flow rate calculation in two phase flow (interFoam) osmond OpenFOAM Programming & Development 0 May 24, 2022 10:59
Intuition for why flow follows convex surfaces lopp Main CFD Forum 47 February 1, 2022 14:14
OpenFOAM - Apparently "not conservative" flow rate with interFoam foamF OpenFOAM Running, Solving & CFD 4 September 4, 2019 16:02
steady free-surface flow simulation interFoam cuikahlil Main CFD Forum 0 October 8, 2018 11:21


All times are GMT -4. The time now is 00:25.