How to calculate u' ( Fluctuating component) in FLUENT?

12 December 2016 0 4K Report

I am working on a LES case in ANSYS FLUENT. I need to calculate u' i.e. the fluctuating component of the velocity. How to get the data about u' in FLUENT?

Badges
Science topic

More Parag Chaware's questions See All

Y+ value in porous zone while modelling flow through porous media ?

I am modelling a flow through porous media using ANSYS Fluent. The flow through porous media is assumed to be laminar. Shall I need to check y+ value in the porous zone also?

08 September 2018 7,873 6 View

How to Determine the amount of heat flux while imposing UHF conditions ?

I am simulating a pipe flow using water as working fluid under Uniform Heat Flux conditions. The ultimate aim is to calculate Nusselt number in laminar and turbulent regime of the flow. I am not...

03 April 2018 2,272 3 View

How to calculate vorticity in the cylindrical coordinates in FLUENT if you have solution in cartesian coordinates ?

I have a FLUENT case of pipe flow. 'X' is the axial direction. I want to plot the vorticity contours in r and \theta plane. How to convert x y and z vorticity to z,theta and r vorticity componenets

07 August 2017 2,681 5 View

What d you mean by Delta X+, Delta Z+ in grid requirment of LES?

Large eddy simulation grid requirement mention about Delta X+ = 100, Delta Z+ = 30 and y+ = 1. Y+ is known but what do you mean by Delta x+ and Delta Z+, x is streamwise and z is spanwise directions,

06 July 2016 6,301 4 View

Is LES model suitable for simulating transitional flow in a pipe?

I am trying to simulate transitional flow in a smooth circular pipe using Ansys FLUENT. Is LES is suitable for transition flow modeling? if yes, which SGS model can capture the transition behaviour?

04 May 2016 9,690 9 View

Do we need to check the y+ values for SST K W turbulence model during post processing and if yes, should the y+ value be `1’ everywhere on the wall?

In SST k omega model the flow is resolved up to the wall. For this the y+ =1. However, in some cases where the solution is converged and showing fairly good results, the y+ values...

01 February 2016 543 13 View

How to calculate fluctuating velocity components (u' v' w') for turbulent flow in FLUENT?

I am trying a case in FLUENT where I need to calculate fluctuating components of the velocity. I RSM model for capturing turbulence. Can you suggest any method to get these components

31 December 2015 6,957 8 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

Tangential stiffness option in ansys workbench?

I am not able to find how I can provide tangential stiffness in ansys workbench The normal stiffness option is there. But how I can enter tangential stiffness I have read somewhere tangential...

29 July 2024 2,032 2 View

How to Import Blade geometry from CAD file in ANSYS design modeler?

Hello. I have the geometry of a blade in CAD file (stp) and I want to prepare the blade for meshing with turboGrid. I must import this file into designModeler and then transfer to the...

27 July 2024 356 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

Reversed flow at outlet due to the release of DFBI?

Hi everyone, I am working on a simulation involving restricted canal with ship using DFBI. I am facing reversed flow in my outlet boundaries as the DFBI is released (In 1.25s). Is there any...

17 July 2024 7,032 1 View

Why my simulation results are showing too much deformation compared to experimental result?

I performed fea on tensile dog bone specimen using ANSYS static structural and also tried using ANSYS explicit dynamics. In experimental result the load is 500 N and deformation is 0.6 mm...

13 July 2024 3,631 4 View

How to introduce on fluent the optical loss of the wall due to the reflection of the plate towards the environment ?

"When solar irradiation reaches a surface, some of it is absorbed while the rest is reflected. Part of the light absorbed by the surface transforms into heat and increases the module's...

13 July 2024 8,621 5 View

Can I transfer the 3D file from Matlab to Ansys or Abaqus?

I have a 3D output in the figure section of Matlab, does anyone know a way to transfer it to Abaqus or Ansys? Or in what format should I save it so that these analysis software can analyze it?

09 July 2024 9,226 3 View

How to add a mass source term in the continuity equation?

Hi, I am trying to model laser cladding in Ansys FLUENT. There are two phase: one is base metal surrounded by an inert gas (shown in the image). I want to add a cladding layer of the same metal....

07 July 2024 1,182 8 View

Why i can't get access to isosurface in fluent?

hello everyone i get into fuent and i select the result icone then i try to create an isosurface but the button is gray so i can't choose it. what's the problem? any suggestion.

03 July 2024 5,418 4 View