How to predict the velocity distribution of a sprayed powder from a nozzle?

Hello everyone, I am searching if it exists any formula used for predicting a velocity distribution of injected solid particles in my case I used flour and the type of injection is through a...

05 June 2019 9,174 3 View

Which flow should I choose in the case of two parallel plates ?

Hello everyone, I am a little confused into choosing the right flow's nature wether it is Laminar or Turbulent and in my case I have the Fluid flow and particles are moving through two parallel...

01 February 2018 8,641 8 View

What are the Units present in Electric Field Ionization experimental formulas ?

Can someone help me about the Kaptzov assumption for setting the electric field value on corona onset. I want to verify the Unit of each term present in the formulas because I am lost in how to do...

09 October 2017 3,041 0 View

Should I take into account the Lift Force when simulating a Fluid Flow ?

Hello everyone,I am simulating an air flow with fine particles using for this the software Comsol Multiphysics and I wanted to know in addition to the drag force that is exerted on the particles...

07 August 2017 4,647 6 View

The influence of the drag froce on the particle's trajectory ?

Hello everyone ! I would like somebody who could help me in the comprehension of the trajectory of a particle in air flow with and without the presence of the Drag Force how the trajecotry is...

06 July 2017 5,823 7 View

Could I use two physics in only one study in COMSOL Multiphysics ?

Hello everyone, I have some problems when using of two physics which are both used in the stationary study and I would like to know their influences on another physics that uses the temporal mode...

03 April 2017 953 7 View

Does the term of Dynamic Viscosity exist for solid materials?

Hi there everyone ^^, I need some help for my study in the field of Fluid flow, I use COMSOL Multiphysics for this and When I add some solid materials like copper or aluminium for the geometries...

11 December 2016 5,738 15 View

Which boundary conditions should I use for a woodenboard transpierced by high voltage wires ?

Hello everyone, I use COMSOL Multiphysics 5.0 in my study and I want to know what must I put as a limiting condition for a plank crossed by wires placed in high voltage ^^ I used "Dielectric...

09 October 2016 1,754 7 View

How to simulate Laminar Flow 2D between two horizontal infinite parallel plates ?

07 August 2016 8,879 13 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

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 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

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