An introductory guide to HDMR?

Hi everyone. I am trying to learn the theoretical basis of High Dimensional Model Representation (HDMR) approach and use it in a machine learning problem. However, the references describing the...

10 August 2020 7,991 1 View

COMSOL, How can I get the correct answer?

Hello, I want to solve the simplest form of my project (Attached) but the velocity in the length of channel in not constant, and the temperature at outlet comes 36Celsius degrees (309K) but it...

17 January 2018 7,040 4 View

COMSOL problem, Laminar flow + Heat transfer? why adding heat transfer affects laminar flow?

15 January 2017 451 11 View

COMSOL, Problem in solving laminar flow (finding entrance length)?

07 December 2016 4,257 13 View

How can I couple 2 temperatures in different physics in COMSOL!?

Hi How can I couple 2 temperatures in different physics!?I have laminar flow and heat transfer in fluids Modules and one extra PDE Eqn. I want to have the same Temperature in both PDE and Heat...

14 November 2016 3,158 2 View

COMSOL Multiphysics problem: How is it possible to couple 2 temperatures in different physics!?

How can I couple 2 temperatures in different physics!? I have laminar flow and heat transfer in fluids Modules and one extra PDE Eqn. I want to have the same Temperature in both PDE and Heat...

13 November 2016 3,290 5 View

How do I extract velocity gradient in CFD-Post?

Hi Friends, I am using FLUENT to simulation and CFD-Post to post-processing. I'm wondering of the exact definition of some macros provided by CFD-Post, such as (Velocity u.Gradient X), (Velocity...

11 October 2015 3,651 5 View

Is there any FLUENT UDF macro to replace the new mesh in each time step?

I am trying to simulate a model in FLUENT that the geometry shape is varying by time. I was wondering can I generate different geometry/mesh each time step and subsequently replace the new mesh...

25 March 2015 4,051 20 View

How can encourage Anarsia lineatella females to lay more eggs?

I'm working on one of parasitoid wasps of Anarsia lineatella and I want to rearing eggs on artificial food so I need more eggs for my experiment. I want to know how can encourage females to lay...

01 January 1970 4,725 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Can Virtual Servers (remote dekstop manager) run heavy ANSYS Fluent CFD simulation ?

I have a virtual machine. My host Pc specs are not that good thats why i went for virtual servers. so basically my host pc has 8gb of ram with nvidia quadro k2200 4Gb DDR5 GPU ,processor intel...

01 March 2021 8,415 1 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

How to extract the y+ value from fluent ?

I am doing a 3D steady simulation of a wind rotor using Ansys Fluent. In order to have a y+ of 1, I created 10 inflation layers using total layer thickness method, and I started a first...

23 February 2021 2,819 3 View

Help with assigning pressure boundary conditions in FLUENT on a large structure?

Hello, I created a very tall tower (>1000m) and applied pressure boundary conditions at the inlet (bottom) and outlet (top) that correspond to the pressure are their relative altitudes....

22 February 2021 9,972 4 View

How do I add a udf to Ansys fluent and does it need to be compiled before hand ?

I have a Define_CG_Motion udf written in c where do I add it to my Ansys fluent project and does it need to be compiled before that?

21 February 2021 9,347 3 View

How do I plot Pressure against crank angle degree in Fluent?

18 February 2021 8,390 3 View