Is Time-Dependent Electric Current Simulation Possible in COMSOL?

ajaymohan251
Messages
1
Reaction score
0
TL;DR Summary
In this COMSOL model, I have a part given potential (-800v) while the other is grounded.

Does anyone have an idea on how to change the potential alternately from +800v to -800v with a waveform function?

V0*wv1(sin(f*t))

Does this equation satisfy this query with a frequency given as 2.81 MHz?

Any suggestions?

This is actually for a particle tracing to be done further for a proton.
Kindly find the images for better understanding.
Electric potensial.pngMaterials with Copper.png
particle trajectory with -800v potensial.png
 
Engineering news on Phys.org
You'll have to use a model that allows for time-dependent solutions, probably Electric Currents in your case.
 
Hey guys. I have a question related to electricity and alternating current. Say an alien fictional society developed electricity, and settled on a standard like 73V AC current at 46 Hz. How would appliances be designed, and what impact would the lower frequency and voltage have on transformers, wiring, TVs, computers, LEDs, motors, and heating, assuming the laws of physics and technology are the same as on Earth?
While I was rolling out a shielded cable, a though came to my mind - what happens to the current flow in the cable if there came a short between the wire and the shield in both ends of the cable? For simplicity, lets assume a 1-wire copper wire wrapped in an aluminum shield. The wire and the shield has the same cross section area. There are insulating material between them, and in both ends there is a short between them. My first thought, the total resistance of the cable would be reduced...
I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
Back
Top