Convergence Acceleration in ANSYS Fluent 2020 R2

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Convergence Acceleration in ANSYS Fluent 2020 R2

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ANSYS CFD tutorials and courses

Күн бұрын

Пікірлер: 13

@VinayNandurdikar 3 ай бұрын

Great video! I really liked how you explained making calculations faster with the timestep factor and showed the memory needed for 1 million cells in different methods.

@omiddmt6565 2 жыл бұрын

Videos like this are very valuable. Thanks a lot for sharing your experience.

@ShamJam85 3 жыл бұрын

so in short, increasing pseudo time step will increase convergence, but I have seen that for high gradients, the initial time step size should be kept very very low llike courant number

@CFD_Mechanic 3 жыл бұрын

Not pseudo time step but time scale factor (this is a new addition in Fluent solver) Yes, as I said in the end of video, that for cases, when you have convergence issues with higher flow gradients in flow, decrease time scale factor was initial run and they try to increase it. But if you dont see any benefit, then it is better to use SIMPLE method in that case. As coupled solver is expensive on per iteration basis and also it required double RAM as compared to SIMPLE family of algorithms.

@asimali724 Жыл бұрын

I'm working on hydro turbine with zero head and the only confusion is if we not make an animation of the rotation of blades by using mesh interface giving the RPM to blades and we use the method that you have used so the answers of the moment are correct? or we should animate and then find the moment values

@rahul_bengali 3 жыл бұрын

Sir make a video..CFD Analysis on Solar Flat Plate Collector and Evacuated Tube Collector

@CFD_Mechanic 3 жыл бұрын

I just need a geometry or sketch or dimensions along with required boundary conditions and I could a make video on it.

@rahul_bengali 3 жыл бұрын

Okay Sir..give me your mail id..I will directly mail you...with all the details required.

@ramazankaldrm7371 3 ай бұрын

Does the computer use ram according to the number of nodes or according to the number of cells?

@CFD_Mechanic 2 ай бұрын

Number of cells. In Finite volume method we refer to cells and in Finite differnce method (FDM) we use nodes.

@hassanyoussef2960 2 жыл бұрын

I have a problem exporting the residual to plot in originlab

@ethinkgroup8492 3 жыл бұрын

Your explanation is so good. We are a startup looking forward to tie up with you as an industry expert. Can you provide your email so I can send details.

@CFD_Mechanic 3 жыл бұрын

sijal2005@gmail.com