How could I use spherical coordinates in COMSOL 5.0 ?

I am simulating flow around a bubble and I need to implement a weak contribution at the bubble surface, the best way to use this weak contribution is to define it using spherical coordinates....

01 February 2017 2,458 3 View

How to define a temperature dependent variable in COMSOL?

I am working on the simulation of a surface tension gradient by temperature gradient.The relation between the temperature and the surface tension is represented in the variable called "Temperature...

10 November 2016 289 6 View

How to set 3D interface boundary conditions for Marangoni convection in liquids using COMSOL Multiphysics ?

I am working on the Marangoni convection in liquids using COMSOL Multi-physics. In my model, I need to impose a shear force on the liquid interface. I studied the "Marangoni Convection" example...

09 October 2016 9,984 4 View

How can I set the boundary layer thickness of an inlet flow boundary condition in FLUENT ?

I need to know how to set the boundary layer thickness of an inlet flow boundary condition in FLUENT. The simulated flow has an inlet Mach number of 0.7 which could not be treated as an in...

10 November 2015 8,013 6 View

How do I track the vortex core in numerical simulations of 3D flow ?

02 March 2015 2,272 2 View

Can the growth of separation increase the number of iterations required to reach convergence?

I'm running ANSYS FLUENT simulation on a compressor cascade, and I wonder if the growth of the separated flow regions could affect the number of iterations required to reach convergence, and why...

02 March 2015 3,966 1 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

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

Is there any tutorial for comsol general projections?

Hi, im trying to make a projection in a 3d comsol model. I have a non uniforme chanel and my intention is to get the average tempreture in the y-z cross section and se the average tempreture...

02 March 2021 4,624 4 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

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View