- #1
TheDemx27
Gold Member
- 169
- 13
So I made this simulation of charged particles: https://github.com/TheDemx27/Charge-Simulator
My goal is to be able to put the charges on a line, as I've done, and see them tend toward a final state where there is more charge at the ends of the line and less towards the center. The problem is, the simulation runs like an elastically no matter what I try. At the moment, I've tried adding an acceleration in the opposing direction of motion, proportional to the velocity. This is the main loop for calculating the acceleration and setting the velocity:
This doesn't seem to do anything. If I make c large enough, the oscillations get bigger, the sim eventually spirals out of control, and I get null values for the positions.
My goal is to be able to put the charges on a line, as I've done, and see them tend toward a final state where there is more charge at the ends of the line and less towards the center. The problem is, the simulation runs like an elastically no matter what I try. At the moment, I've tried adding an acceleration in the opposing direction of motion, proportional to the velocity. This is the main loop for calculating the acceleration and setting the velocity:
Code:
for (int i = 0; i < charges.Count; i++) {
for (int j = i + 1; j < charges.Count; j++) {
distance = GetDistVec(charges[i], charges[j]);
f = charges[i].q * charges[j].q * k / (distance.Magnitude * distance.Magnitude);
acceleration1.Magnitude = Math.Abs(f / charges[i].m);
acceleration2.Magnitude = Math.Abs(f / charges[j].m);
acceleration1.Direction = distance.Direction;
acceleration2.Direction = distance.Direction += Math.PI;
// DAMPENING
double c = 10;
accel1 = PolarToComponent(acceleration1);
accel2 = PolarToComponent(acceleration2);
accel1.x -= c * charges[i].x;
accel1.y -= c * charges[i].y;
accel2.x -= c * charges[j].x;
accel2.y -= c * charges[j].y;
// DAMPENING
SetVelVec(charges[i], accel1);
SetVelVec(charges[j], accel2);
}
}This doesn't seem to do anything. If I make c large enough, the oscillations get bigger, the sim eventually spirals out of control, and I get null values for the positions.