Negative growth rate in Fluent Population balance equation?

Hi all, I need to add a negative growth rate of particles in the Fluent through UDF. I have written a code and put a negative growth rate instead of positive growth rate. What i see is that fluent...

07 August 2016 7,136 4 View

Problem with fluent macro C_PB_DISCI associated with population balance equation ?

Hi all, Here i am a help from those people having experimence with using PBE in fluent. I was trying to access the PBE bin fractions using C_PB_DISCI(c,t,i). While i am interpreting the udf, it is...

06 July 2016 1,346 2 View

Solution of differential equations with AMG?

03 April 2016 4,056 12 View

N definition shadows previous definition fLUENT UDF ?

03 April 2016 550 0 View

Point and line iterative methods?

Hi all, In point (Gauss-Seidel) method of iterative solution, simple algorithm is applied at each point where the function value has to be determined in successive manner, which essentially means...

03 April 2016 5,688 1 View

Solving pde in the boundary in COMSOL?

01 February 2016 2,517 6 View

Connecting matlab with COMSOL :Livelink?

Hi all, I a using COMSOL 3.5a in windows operating system. I having a problem with connecting COMSOL with Matlab. Is there any way to nconnect? Any king of help is appreciable. Waiting for...

31 December 2015 6,830 6 View

How can I write a macro for velocity gradient in fluent?

I am studying a laminar fluid flow through a channel. I would like to get the velocity gradient at each cell. What kind of macro and thread I have to use? Please anyone answer. Regards, vivek.

05 June 2015 8,723 9 View

How can I set the output of fluent in console mode?

Hi all, We know that while fluent solves some problem, it gives outputs like how many more iterations to do? which iterations has been converged? updating of of solution etc. There are some output...

11 December 2014 2,371 2 View

How do I solve a "Ansys.Fluent.Cortex.CortexNotAvailableException" error in Fluent parallel computing?

11 December 2014 1,295 12 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