Coefficient Form PDE for Pennes' Bioheat tranfer
Hello. I'm relatively new to COMSOL and have been trying to create a model of the skin. I am not trying to apply Pennes' bioheat transfer equation to each layer (Epidermis, Dermis, and Fat), but this...
View ArticleHelp!!!! How to define such indicator temperature, Tp
Dear all, I'm now using Comsol to simulating 3D heat transfer problem. I want to define an indicator temperature Tp in the domain that records every point's maximum temperature the point has ever...
View ArticleTime Dependent Study- Flow Past a Cylinder
Hello, I am relatively new with COMSOL, and am trying to start off with the basics before I dive into my research using the program... I want to find the Strouhal number from a cylinder in a laminar...
View Articleenergy harvesting, magnets and coils
a magnet is going to be vibrated along the path of a coil. how do i show the graphical analysis of flux density versus distance? how can i get the graphical representation of the emf produces vs time?
View ArticleCan anyone help me with Transport of Diluted Species?
Hi colleagues, I am facing the problem with my project, and I would greatly appreciate if you can help me. In short, I want to plot concentration distribution in a microfluidic channel, and for that...
View ArticleType of Study Step and solver
Hello, I'm trying to simulate a cylindrical Induction Motor on comsol to see the resulting forces in the rotor. The currents on the stator are defined by: I*cos(w*t-k*phi), where phi is the angular...
View ArticleJob Opportunity
Hello, If there is anyone in this community look for employment at a small, high tech company in Oregon (Oregon Physics LLC), we have an open position for a suitable candidate. Oregon Physics develops...
View ArticleOptical properties of silicon nanowires
Hello all, My objective is to simulate optical absorbance, transmittance , reflectance of an array of Silicon nanowires. The nanowires are peiodic in-plane (in X-Y plane) and vertically aligned. The...
View ArticleHI
I'm modeling a reactor to produce hydrogen.(steam reforming) kinetics obtained by using paper (Jianguo Xu Gilbert F. Froment) Darcy model was used to determine flow The flow rate through the reactor is...
View Articledistinguishing subdomains graphically (e.g. plotting subdomain-labels) in...
Hi, in Comsol 3.x it was possible to examine the subdomains via showing the subdomain-numbers in geomplot using the option 'sublabels','on'. Is there a possibility in Comsol 4 to distinguish the...
View ArticleElectrical impedance of a piezoelectric device
The electrical impedance of a piezo device, piezoelectric transformer e.g. around a resonance mode, can be electrical model with the as a LCR brance in parallel with a capacitor: "LCR||C". Equivalent...
View ArticleSimple heat module problem
Hello, I have been using COMSOL for a while now, but this is the first time I have had to use the heat transfer module. I could attach my model, but I feel the problem is simple enough not to require...
View ArticleMicrofluidics device for sorting of particles
Hi all, I am attempting to do simulations on microsorters based on dielectophoresis and magnetophoresis. I managed to do the simulation for just 1 type of particle but i'm facing issues setting...
View ArticleVoltage Dependent Resistor
Hello; I want to simulate a simple electrical circuit as an initial step of my main study. In my study, I need to define the resistors whose values depend on the voltage gradient across them. However,...
View ArticleMoems Fabry Perot Pressure sensor
hi.. i am trying to simulate the structure something like attached figure. what i need to do is apply sinusoidal excitation (of resonant frequency of whole structure ) at the base (lower layer) of the...
View ArticleLine Graph using expression for x-axis
Hi, I am doing magnetic field simulations to validate analytical models. For this I need to have the line graph of the radial field in the airgap for example. This works fine, as long as I plot it over...
View ArticleUltrasonic Atomization
Hi All, We want to simulate the ultrasonic atomization (Piezo electric transducers) phenomenon in the Acoustics Module. for (Experimental, and Theoretical) verification and validation if any one have...
View ArticleHow to obtain x and y coordinates of a curve as function of angle along...
I want to know the x and y coordinates at a certain angle (sys2.phi) from a curve which runs around [0,0]. For a circle with radius R this can be found easily with formula's. However, for curves of...
View ArticleProblem with reference edge in multiturn coil domain of 3D
Dear all I have problem with defining the reference edges for my model which consist of two coils with separated distance .I used multi turn coil domain in 3D to excite the coil and I defined the...
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