Microwave Oven Potato Cooling
Hi, can you tell me please, that how did you apply power (piecewise function) to the input port of the oven, I am trying to do the same but can't compute the study. thanks in advance.
View ArticleMicrowave heting
Hi, Everyone I am using module of microwave heating, my problem is that, I have an X-band Rectangular Waveguide in which i placed a dielectric block (Refer to module = RF Heating Model ID: 6078) . Now...
View Articlex and y polarization calculation
Hi all, I am doing Photonic Crystal Fiber project. I want to analyze the birefringence, for that how can I calculate the the effective indexes in x and y polarization method? I think it is with post...
View ArticlePlacing a finite element model into an electrical circuit in COMSOL 4.1
Hello, I have recently made the switch from COMSOL 3.5a to COMSOL 4.1, and I am currently unable to do things that I used to be able to do very easily, namely placing my 3-D model (drawn and defined in...
View ArticleRe-ordering of null vectors failed?
Hi, I'm wondering if anyone knows what "Re-ordering of null vectors failed" mean. I'm doing light propagates through a patterned nanostructure with periodic boundary condition, where the light has an...
View Article2D axisymmetric numeric port settings
Dear all, I am trying to model EM wave propagation through a tapered step-index fiber. Because of the large size of my geometry and the symmetry of the problem I use the 2D axisymmetric settings. My...
View Articlemicrowave heating
hi, I'm using the module of the microwave heating and i was viewing the model with the potato in the oven from which you can see the increase in temperature. my question is: if I turn off the oven, it...
View ArticleModeling elastic waves in a solid mechanics study
Hi, I'd like to ask a question concerning the modeling of elastic waves in the structural mechanics module. The geometry is a simple 3D beam, free on all sides. (file attached) My goal is to study the...
View ArticleHow to set up multiple input powers for a single port?
Hello everyone, I'm new to COMSOL. I got a question that might be quite easy for an experienced user. Could I enter multiple input powers at a sinlge port in RF module? For example, I only created a...
View ArticleIrregular grating modeling using ports or background field
Dear all, I am a novice at comsol and has been building my first model for some time. I want to calculate the scattered field caused by a plane wave incident upon an irregular grating (with dozens of...
View ArticleAC/DC
Hey. How can I view the field lines of electric and magnetic field? Thank you. Bye.
View Articleidentity pair,assembly and port
Dear Ivar： My name is Guanjun Wang, a Chinese undergraduate student, i'm very appreciated of your selfless and accurate reply to many questioners, so i wanna ask you a question too, if convenient. I...
View Articleidentity pair,assembly and port
DearEdgar： My name is Guanjun Wang, a Chinese undergraduate student, i'm very appreciated of your selfless and accurate reply to many questioners, so i wanna ask you a question too, if convenient. I...
View Articledielectric heat up in capacitor
I am modeling the dielectric heat up in parallel plate capacitor using microwave heating. I have watched all the relevant videos available and tried a lot of possible ways to change my model, but it...
View ArticleTransmission and Reflection of a Three layered Structure
Hi All, I had designed a three layered structure. Using PORT 1, I excited the EM wave from the top of the ITO(Indium Tin Oxide) and placed second port(PORT 2) at the bottom of Ag(Silver). I had...
View Articleidentity pair,assembly and port
My name is Guanjun Wang, a Chinese undergraduate student, recently, I had encountered a problem about the identity pair. Using the assembly between two unions and creating a identity pair which...
View ArticleWhy does my S11 parameter change when adding a 2nd inactive port?
When looking at off-normal reflection from a periodic structure, my S11 results change when I add a second, unexcited periodic port (S2x). My first periodic port is sending a TM mode in Hy, with...
View ArticleOpening older files
Hi, I just upgraded my mac OS and the admin installed a newer version of COMSOL (4.4). I was wondering if I still can open my simulations made in older version of COMSOL. I think I had 4.2 or 4.3 .....
View ArticleMicrowave Oven Potato Cooling
Hi, can you tell me please, that how did you apply power (piecewise function) to the input port of the oven, I am trying to do the same but can't compute the study. thanks in advance.
View ArticleMicrowave heting
Hi, Everyone I am using module of microwave heating, my problem is that, I have an X-band Rectangular Waveguide in which i placed a dielectric block (Refer to module = RF Heating Model ID: 6078) . Now...
View Article