How to make a geometry for moving bubble?

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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 2,239 2 View

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 528 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 3,727 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 9,096 3 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 1,970 4 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 3,945 7 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 1,900 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 5,354 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 2,703 3 View

Is kinematic boundary conditions is enough to move liquid-liquid interface tangentially in artery?

Hi everybody, I want to simulate a bubble moving in fluid, say blood using comsol. For such type of interfaces, to couple mesh motion with fluid motion, dose the following kinematic boundary...

31 December 2018 8,328 9 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 View

How to get onecolumn document from standard IEEE ACCESS LateX template?

I have prepared a manuscript in IEEE Latex template, but for some purpose, I need to prepare a word file as well (detailed format is not required). Compared to two column .tex file, one column...

02 March 2021 1,830 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

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

Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

How can the modification of garden soil cause global warming?

Hello, I am working on a soil project and I found a primary research article that tests how the modification of agricultural soil can cause global warming, using a thermal collector, however I...

02 March 2021 7,161 3 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View