How can I impose Inlet and outlet boundary conditions for channel flow in modeled weak form PDEs using COMSOL?

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How to apply moving mesh capability in COMSOL?

Dear friends, In the attached MPH file, I am simulating a gas bubble moving in fluid using COMSOL moving mesh application. The COMSOL weak form pdes application mode was applied but...

10 November 2019 694 4 View

Dose it is good to publish papers in MDPI journals?

Hi friends, If we publish all papers in MDPI SCI journals during PhD studies, is it good?. Can it create some problems in future post doc apply or to apply some jobs?. What are your...

10 November 2019 3,846 4 View

How to solve the ode with maximum accuracy?

Dear friends, I am interested in the solution of the following ODE with maximum accuracy using Euler method. dy/dt =Ay where A=[1; 0; 4], is a 3-by-1 matrix. Thank you....

10 November 2019 2,365 2 View

How to set the line width in COMSOL/MATLAB live link simulations?

Dear friends, I a have a problem in setting the line width of a graph in COMSOL/MATLAB live link simulations. Using the command mphplot(model,'pg1', 'LineWidth', 2) dose not work. How I can set...

08 September 2019 2,089 4 View

How to write surface gradient operator in COMSOL?

Hi friends, Dels is a surface gradient operator which we applying to find the tangential velocity along a surface/arc. It can be written as...

08 September 2019 9,400 3 View

How to create a three-dimensional droplet geometry in COMSOL?

Hi friends, I need to create a 3D geometry of bubble/droplet in a channel using COMSOL. Please, can anyone upload an mph file for such a geometry or can guide me?. I shall be very thankful.

05 June 2019 4,128 7 View

How to make a geometry for moving bubble?

Hello everyone, I am looking for a geometry construction in COMSOL, when a small elliptical shape bubble moving in fluid in cylindrical channel using ALE (method) with appropriate meshing. Can...

03 April 2019 2,320 3 View

What is Naiver Slip boundary condition?

Hi all, I am simulating moving mesh in COMSOL where I need to apply Naveir-slip boundary condition (found in literature). I do not know its role in moving mesh free surface (air-liquid) flow....

02 March 2019 2,109 4 View

How to simulate bubble motion?

Hi, I am using Comsol to simulate a bubble moving in blood vessel. In my simulation i am applying moving mesh (ale) application mode. Comsol solves equations, but the bubble can not move as...

01 February 2019 5,482 7 View

How to simulate microbubbles?

Hi, I am studying micro bubbles flow in lungs for mechanical ventilation. But due to less information about bubble simulation, I cannot. Dose, anyone have some mph files which can support my...

01 February 2019 2,824 3 View

Problems about acousto-optic coupling in Comsol, how to check whether the moving mesh is correct?

I’m trying to reproduce the acousto-optic coupling simulation in the paper Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering. LNOI(lithium niobate on insulator) is...

13 August 2024 9,795 0 View

Regarding LBM in Boiling?

What should be the equation for halfway bounce back boundary condition for flow field with forcing term?

08 August 2024 7,938 1 View

How can I apply boundary conditions in an orthotropic steel deck numerical model using ABAQUS software?

I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...

08 August 2024 719 0 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

How to assess the osmotic power of a substance?

Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...

06 August 2024 977 1 View

Can a photocatalytic degradation of methylene blue from red mud be pseudo- zero order kinetics?

My photocatalyst from solid waste red med. Dye is methylene blue My all parameter study is showing zero order. How to prove it further that the reaction in zero order?

29 July 2024 7,404 1 View

How to determine method detection limit in an analytical method?

I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...

24 July 2024 6,592 5 View

How to get LP fiber modes directly from Comsol?

Hi there, I'm new to modelling with comsol. I would like to ask if it is possible for comsol to output linearly polarized (LP) modes? I tried modelling a simple single mode fiber with an enlarged...

23 July 2024 4,019 3 View

Radar Detection Probabilities using beta distributed Scattering Cross section?

Currently I need to calculate detection probabilities (PD) from radar cross section (RCS) data. Beta distribution parameters for this RCS data are calculated and will be used in Swerling0...

22 July 2024 868 0 View

What is the physical meaning of the magnetic scalar potential?

In cases where the rotational of the magnetic field H is zero, we can define this field as the gradient of a scalar function defined as the magnetic scalar potential (similar to the electric...

21 July 2024 9,633 4 View