How to specify Porous medium Settings(porosity settings) in Ansys CFX ?

Hi all, I want to simulate a porous material which is "anisotropic". For that I have to input meaningful porosity settings. Since it is an anistropic case, I have to choose the "Directional...

10 November 2017 9,426 2 View

What is the difference between structured and unstructured mesh types in a FVM software ?

Hello, in a Finite Volume based software like Ansys Fluent, what is the difference between structured and unstructured mesh ? And what are exactly are they ? I searched through the Internet, but...

07 August 2017 682 9 View

How to study Grid Convergence Index (GCI) for an Ansys(CFX) Simulation?

Hello, I have a basic simulation in Ansys cfx and I want study Grid Convergence Index on that in order to speed up the simulation. But I have no idea how to do that. Could anyone please help me ?

05 June 2016 916 4 View

How to study convergence for a periodic solution ?

Hello, I have a heat transfer simulation in Ansys CFX and it is a thermodynamic cycle and thus have a periodic solution. I do not know how convergence works for this problem , because it does not...

04 May 2016 6,059 5 View

What does it mean that the cut-off frequency be normalized by the sampling frequency?

09 October 2015 6,621 4 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 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

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View