All Questions
Tagged with collision simulations
34
questions
1
vote
1
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69
views
How do you solve instantaneous 3 body collisions
A few years ago I built myself a very basic python program that did some very basic collision mechanics between particles with a mass and velocity and it was helpful in learning a few things and ...
- 111
3
votes
2
answers
294
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Circle-circle collision, linear and angular momenta transfer
I am trying to simulate particle collisions in two dimensions (hydrated ions). I have found the formulas I need for the transfer of linear momentum. However, I kind of suspect that angular momentum of ...
0
votes
0
answers
117
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Simulating Destructive High-Speed Collisions
I'm at the beginning of some research involving the simulation of space-debris cascades. I understand the various different forces and perturbations that I'm going to be required to account for to ...
- 114
0
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1
answer
63
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Finding Scattering Angle by solving Integral numerically with Singularities
I was trying to do a computational project from Computational Physics by Steven Koonin. The problem requires us to solve two integrals each of which has singularity at the lower limit and numerically ...
- 11
1
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1
answer
111
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Gas particle collision rate dependence on particle velocity/ Hard sphere simulation
From a basic kinetic theory perspective the A-B collision rate $\theta_{AB}$ is given as a function of the mean speed and the number density.$$\theta_{AB} \propto \bar{C}_A n_B$$
If we are considering ...
- 21
-1
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1
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663
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Calculating the force between a collision of unequal masses and unequal velocities
I'm writing a physics engine, and it works by implementing forces. Inside the world, you can add a constant force to any object (the most obvious of which would be gravity), and you can add a ...
- 77
2
votes
2
answers
121
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Calculating RMS Radius of a Globular Cluster
I am coding a simulation of a globular cluster in python, starting with particles of the same mass and
$0$ initial velocity in a random spherical distribution. I am trying to investigate the root-mean-...
- 155
1
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3
answers
2k
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How can I calculate the final velocities of two spheres after an elastic collision? [duplicate]
I have two spheres in 3-dimensional space. The mass and initial velocity of each sphere is known. If the spheres collide elastically, how can I calculate their final velocities? The spheres do not ...
- 121
2
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0
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36
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Impulses in a Collision
The question I have is that of computing the impulse in a collision between two objects in real life (or in a scenario that is very close to real life). I wish to simulate collisions of objects of ...
3
votes
1
answer
157
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Is reversal of velocity always equivalent to reversal of time?
Let us imagine there is a container full of small particles which are allowed to collide with each other and the container walls (in 2D). If I initialise the system with given velocities and positions ...
- 351
2
votes
1
answer
629
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Sweeping collision detection between two line segments moving in 3d [closed]
I have two moving line segments in 3d; A and B with known endpoints at time t=0 and t=1. A0(t0), A1(t0), B0(t0), B1(t0), A0(t1), A1(t1), B0(t1), B1(t1)
I need to know if they collided while moving ...
- 204
2
votes
1
answer
147
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Spring Constant Dependence on Contact Area
I'm actually modeling a contact situation between an elastic cuboid (in reality it is an elastomer) and a non elastic sphere ($c_c\ll c_s$). The spring constant $c$ is defined with the young's modulus ...
- 23
1
vote
1
answer
2k
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How to simulate collision of two balls?
There two balls, $B_1$ & $B_2$ with respective masses $m_1$ & $m_2$ traveling in two dimensions with velocities $v_1$ & $v_2$ in the directions $\theta_1$ & $\theta_2$. I also know the ...
- 190
0
votes
2
answers
1k
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Elastic collision in 2 dimension: Simulation [closed]
I am writing an MD simulation of an ideal gas. To solve for the final velocities of two particles that collide, I came across the following code on the Internet:
...
- 115
8
votes
2
answers
738
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What is the difference between Monte Carlo Tracks and Reconstructed tracks in heavy ion collisions?
I am doing a simulation of heavy ion collision, so I want to know what is the meaning of Monte Carlo tracks, what is a reconstructed track, and also, what is the relation and difference between Monte ...
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