Simulating flow through a branched pipe
I am new to COMSOL. I am looking for a tool that can simulate flow through branched pipe.I'd like to know if it is possible to simulate 1D solute transport in a pipe section that diverges into 2...
View ArticleHow do you plot a Temperature graph along this line?
I have a 3D reactor model with baffles, and I want to plot the temperature and concentration of the average velocity path (line shown on the surface of the reactor).Need a way to determine the...
View Articlehow to set up a Semi-infinite area
I want to build a semi-infinite area. how to setup the periodic boundary condition
View ArticleSpecifying lengths while creating geometries
I 'm following this tutorial to create a pipe geometry that branches to form 2 sub branches and coverges again.The geometry is specified by selecting a polygon and specifying the x and y coordinates...
View ArticleCOMSOL Unable to Compute Third Order Space Derivative
Hi, I have been working on a project which requires the evaluation of a third order space derivative term in my 1-D PDE, and this is done using the Coefficient Form PDE module. I found that COMSOL...
View ArticlePlot 4D Comsol 5.4
Hi, I try to plot an interpolating function consisting of x,y,z (point coordinates) and I (which takes values between 1 and 3). I get the attached photo but the domain is cut into a cube shape, when in...
View ArticleExciting Surface plasmon polaritons with a point source
Hi, I am new to COMSOL and would like to know how to excite surface plasmon polaritons using a point source place the the metal-dielectric interface.Thanks, Ashwin
View ArticleRegarding Mode Analysis
Hello Everyone, I am very new to this field so can anyone please suggest me how to model Rectangular Waveguide(WR 90) for mode alalysis so that i can estimate S parameters of composite materials?
View Articleextracting information with mpheval() - ndgrid vs meshgrid
Hi,I could not easily find anything about this topic, so excuse if I missed something.In page 288 of the LiveLinkForMATLABGuide, there's an example of how to extract information using mpheval() with...
View ArticleElectrophoretic Deposition
Hello everyone,I would like to simulate AC electrophoretic deposition of SiC particles in COMSOL. Is it correct to use the electrodepositon module?
View ArticleCoefficient form PDE: Ergun equation
I am trying to study on the pressure drop along the adsorption column by solving the ergun equation via the PDE. However, the simulation resuls shows no pressure drop. Anyone know how can I solve this?
View ArticleParametric sensitivity analysis
Does anybody know how to do Parametric senstivity analysis in comsol 5.3a?
View ArticleGradient of the magnetic field is zero
Hi forum,I'm relatively new to COMSOL and am trying to plot the gradient of the magnetic field from a 2D block magnet in the Magnetic Fields, No Currents (mfnc) physics module, along with a Coefficient...
View ArticleSurface integration for gold nanoparticle
What is the expression for surface integration of gold nanoparticle?
View ArticleSchottky drain current of 2D material FET
Hi Forum, I'm trying to plot the schottky drain current varying by applied gate voltage in WS2 FET, which has p-type doped Si substrate and WS2 channel. Although my design give pretty much accceptable...
View ArticleIncluding gravity effects in CFD simulation
Hello everyone!I am modeling laminar flow through a vertical pipe whose inlet is at the base of the pipe. The outlet is normal (90 degrees) to the pipe. The pipe is vertical along the z-axis. My...
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Radiation Boundary Condition for Wave Equation in Coefficient for PDE
Hi, I'm currently working with a 1-D wave equation in the Coefficient Form PDE physics. I want to specify a boundary as an open boundary/ radiation boundary as I do not want any reflection of the...
View ArticleRegarding the expression of normal to a curve of 3D surface.
Hi All,I am working with a 3D-Block (Picture attached). Over this 3D block, there is 2D curve PQ, embaded in ZX-plane Now I wish to specify some perticular condition along the normal to the curve PQ in...
View ArticleObtaining The Co-Ordinate of Point with minimum value of a Expression
Hi All,I have an 3D geometry. In the 3D geometry, I have a curve PQRST in ZX- Plane (Image attached). I want to calculate the value of a perticular expression (Say, EXR1), at each point of the curve...
View ArticlePrescribed time dependent displacement
Hi!I am currently working on making a peristaltic pump and analyzing the influence of different parameters. In order to analyze different heights to which the pump closes and opens again, I want to...
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