In Comsol i want model a vibrating rigid solid makes acoustic waves in surrounded atmosphere. How can do that?

I want make a model of acoustic-solid interaction (an acoustic wave made by vibrating solid). But because of time consumption, i don't need structure analysis and it's better to model solid as a...

01 February 2020 9,696 2 View

What is relation between pressure wave radiated in air from a moving solid and velocity of harmonic moving solid?

Hi, What is the physical relation between pressure induced in air and radiated from a harmonic moving solid and it's velocity? we assume a harmonic moving of solid (plate or beam) with frequency...

31 December 2017 2,675 1 View

What is application of different parameters in comsol transient analysis?

In comsol multi-physics there are 3 parameters those affect the accuracy of solution and also time of computation. 1- study > time dependent >study setting > times > time step we know...

09 October 2017 4,881 0 View

What is different between time dependent modal and time dependent (transient) analysis in comsol?

10 November 2016 9,330 0 View

Problem in plot time dependent vibration in comsol?

Hi, when i plot the time dependent plot of a selected point of a beam (for example in w displacement), the resulted plot was true but it is not smooth enough as i expect it. i try to decrease time...

09 October 2016 4,777 1 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 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

MD MOE RMSD

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

07 August 2021 0 0 View

MGL tools

20 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

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 simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View