What eqn does comsol use to get the pressure profile?

Hi all, Does COMSOL use pressure poisson equation to get pressure profile? Thanks vivek

31 December 2015 7,564 1 View

Connecting COMSOL with MATLAB?

Hi all, I want to connect matlab with COMSOL to collect data. Where i want to put a command in MATLAB and according to that command value of that parameter from the subdomain will be collected in...

11 December 2015 8,129 1 View

Solving dimensionless equations in COMSOL?

11 December 2015 7,804 15 View

Information relating to COMSOL solver?

Hi, I am using COMSOL software. I am having some problem understanding different parameters while using PARDISO linear system solver. What is pivoting perturbation? and why preordering algorithm...

11 December 2015 9,386 0 View

RTD and mixing in plug flow or in continuous reactor?

Hi all, This is going to be a purely chemical engineering thing. We know that in ideal reactor, space time (Holding time) is the tideal=Volume of reactor/Volumetric flow rate. But real reactor...

06 July 2015 1,314 21 View

Any suggestions on the formation of bigger and smaller eddies in turbulent medium?

06 July 2015 5,866 69 View

Anyone familiar with convergence and under relaxation factors in fluent?

Hi , This is in relation to the effect of under relaxation factor on solution convergence.I have learned that if relaxation factors are reduced, then it takes huge time to reach the...

06 July 2015 9,708 7 View

What is the relation between viscous force and the inertial force?

Hi all, We all have regularly heard of the terms like viscous force and the inertial force. Now the viscous forces are the forces due to to the friction between the the layers of any real fluid....

06 July 2015 2,702 22 View

Finite element method?

04 May 2015 5,406 3 View

Anyone familiar with nodes and volume elements in fluent meshing CSTR?

04 May 2015 3,698 8 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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 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

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

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