Volume fraction in FLUENT

04 April 2012 1 6K Report

how exactly is volume fraction defined in FLUENT,

if volume fraction of a =Qa/(Qa+Qb), then how can this be related to FLUENT

You can use constant volume fraction in the multiphase panel, so that you can the value appears in the bouandry layer conditions panel, but if it is a fonction , you can introduce it by creating an independent file as fluent define it in its help manual and when running the calculation you refer to the file by profile in define panel.

Badges
Science topic

More Aman Raj Verma's questions See All

Make video by combining images

Can anyone help with software to combine images and make a video? I have continuous images of CFD simulation and I want to combine them as per order.

26 April 2012 3,394 10 View

decide volume fraction(vf) at air inlet in multiphase flow, Qa = air flow rate, Qw = water flow rate

I am injecting air over plate over which water is flowing(see domain attached), since vf = Qa/(Qa+Qw), Qw and vf are known through this Qa is calculated, and since air inlet dimension is known so...

04 April 2012 1,804 2 View

Volume fraction in FLUENT

how exactly is volume fraction defined in FLUENT, or if volume fraction of a =Qa/(Qa+Qb), then how can this be related to FLUENT

04 April 2012 1,834 1 View

decide volume fraction(vf) at air inlet in multiphase flow, Qa = air flow rate, Qw = water flow rate

I am injecting air over plate over which water is flowing(see domain attached), since vf = Qa/(Qa+Qw), Qw and vf are known through this Qa is calculated, and since air inlet dimension is known so...

03 April 2012 9,544 2 View

Turbulent viscosity limited

What is the main reason for this prompt to came when a simulation is being done on FLUENT

03 April 2012 1,604 1 View

Multiphase flows

I am trying air injection to a normal flow of water over a flat plate to see the reduction in drag, what model must be suitable, VOF, Mixture, or Eulerian? Speed of water over plate is about...

29 March 2012 7,343 8 View

Enhanced Wall Treatment

I am working on a turbulent flow, I have read about enhanced wall treatment which is used to capture viscous sublayer. At very high Reynold's number (~10^7 or ~10^8) does this needed to be...

25 March 2012 8,645 8 View

Enhanced Wall Treatment

I am working on a turbulent flow, I have read about enhanced wall treatment which is used to capture viscous sublayer. At very high Reynold's number (~10^7 or ~10^8) does this needed to be...

02 March 2012 9,109 8 View

Can anyone recommend a software which can extract coordinates of image in pdf?

02 March 2012 4,894 13 View

Multiphase flows

I am trying air injection to a normal flow of water over a flat plate to see the reduction in drag, what model must be suitable, VOF, Mixture, or Eulerian? Speed of water over plate is about...

02 March 2012 4,296 8 View

How to start a Molecular Dynamics Simulation?

Is it possible to conduct a molecular dynamics simulation to see the effects of a specific carbohydrate on the structure of lipids (e.g., micelle structure)? I am a beginner in this field and plan...

03 August 2024 3,371 3 View

Which will be the best software for the Hydration shell analysis with molecular dynamics?

I am using a windows system, what software I should use for hydration shell analysis with molecular dynamics?

02 August 2024 3,143 4 View

CAD File of human's & rat's respiratory airways ?

Dear all, I am working on particle deposition in human's & rat's respiratory airways using CFD and I am looking for the 3D CAD file for my simulations (STEP or IGES format). If somone has such...

29 July 2024 1,092 2 View

How to restart MD without using checkpint file in GROMACS?

Dear All Gromacs User I would like to restart MD without using checkpint .cpt files? I heard there is a way for acheiveing this. Any input and sugegstions are most welcome. Thanking You Budheswar

29 July 2024 3,084 8 View

How to prepare a molecule for molecular dynamics calculations?

If I want to calculate molecular dynamics (Gromacs), do I first need to optimize the geometry of the molecule? For example, I first draw the molecule in Avogadro, and then what? I guess I can't...

28 July 2024 673 3 View

Problem with Two-phase simulation?

Hello; I am conducting a CFD study on two-phase flow in a separator, utilizing refrigerant as the working fluid. For this study, I have implemented pressure inlet and pressure outlet boundary...

25 July 2024 2,309 5 View

Flow through curved domains?

Hi everyone, I am working on a curved domain in which a ship is situated in the middle (geometry is given below). In my understanding the general fluid flow is parallel to the x axis from inlet to...

25 July 2024 9,058 4 View

Can anyone kindly suggest research topics in the area of thermodynamics, heat transfer, fluid mechanics or renewable energy?

I am an undergraduate mechanical engineering student seeking suggestions on topics related to either thermodynamics, fluid mechanics, heat transfer or renewable energy for my final year project....

24 July 2024 4,058 5 View

MDCI module in Orca software?

Dear Researchers, My question is associated with the "MDCI" method in Orca. Please let me clarify my question using a simple example: Suppose we are going to perform CBS extrapolation using "!...

21 July 2024 1,632 0 View

Is it possible to run the AIMD within a system using virtual crystal approximation (VCA)?

I want to study the thermal properties of a mixed system which is constructed by virtual crystal approximation in VASP. When I try to run the ab initio Molecular Dynamics of this system in VASP, I...

19 July 2024 6,569 3 View