The simulation tag has no wiki summary.
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1answer
82 views
Initial position and velocity of rocket to escape earth's gravity
I'm trying to numerically simulate a spacecraft trajectory between earth and mars. I already wrote the solar system model where the sun is at the origin of the x,y,z plane Earth and Mars are orbiting ...
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votes
1answer
89 views
Simulating a car in an intersection
I'm somewhat confused. I want to simulate in real-time an intersection where cars have to turn left, right or go straight. What I have are 2 way points: One at the beginning of the intersection on ...
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45 views
Animating the Bosonic String
I am interested in studying the classical solutions to the Bosonic string in flat 3+1 dim. spacetime by having them rendered a moving picture on a computer. This is partly for fun, and partly to ...
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156 views
Cellular automata rules for quantum mechanics
My limited understanding of quantum theory is that a quantum system is completely described by its wave function, which deterministically evolves according to Schrödinger's equation until wave ...
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57 views
Final-state baryons in $p \bar p$ collisions in Pythia
I'm trying to simulate inclusive $\chi_c$ production in $p \bar p$ collisions at very low energies (~ 5.5 GeV) using Pythia8 event generator. Leaving aside problems bounded with applicability of ...
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205 views
Nuclear/quantum physics simulation software
Is there any software which is able to simulate D-T interaction for example and get temperature-crosssection curve without referencing to any experimental data?
Do we have quantum-level simulation ...
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129 views
2D Car Physics including Throttle
For a simulation for testing on automatic cruise control, I came across the equation:
$$
v_{n+1} = (1 - k_1 / m) v_n + (1 - k_b) \begin{pmatrix}
T_n \\
θ_n \\
\end{pmatrix}
$$
where:
$T$ = ...
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148 views
Comparison of different ab-initio codes
One may find on the web a lot of different computational packages to perform "ab-initio" calculations of electron structure of the solids. Usually, the documentation is not quite transparent about the ...
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58 views
How can one activate the decay of the quark b with PYTHIA event generator?
This is my problem and I hope finding a solution.
_In the simplest alternative, MSTJ(22) = 2, the comparison is based on the average lifetime, or rather (c*tau "time life") , measured in mm. Thus ...
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0answers
82 views
Gibbs Ensemble initial densities
I'm trying to calculate coexistence curves and get a rough estimate for the critical point of simple fluids using the well-known Gibbs Ensemble Monte Carlo (GEMC) (c.f. Panagiotopoulos, Molecular ...
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0answers
48 views
Degenerated Anderson Model Simulation
I'm trying to simulate the degenerative Anderson model. So depending on an energy difference first orbital and afterwards spin magnetism occurs. First i try to solve an easier ansatz with a limitation ...
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0answers
58 views
Toolbox for Complex Networks and Graphs
Is there a toolbox which helps in visual simulation and modeling of a network (say a mesh or ring) consisting of coupled synchronized system of nonlinear equations(ODE) which represent a system of ...
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0answers
164 views
What does sound waves moving through 3D space look like, visually?
Imagine a room filled with air particles. How would a sound wave move in that room, refract from walls, and eventually dissipate?
I'd love to see a animation or simulation of some sorts of it.
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70 views
Physics for taffy pulling?
I am creating a simulation and am interested in pulling stretchy things and when they break, like taffy. I imagine this is a bit tougher then a simple equation like gravity, but I have no idea.
Is ...
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0answers
508 views
Damping and stiffness constants of water
I'm working on a simulation of water drops falling into a pool. I'm specifically interested in the waves generated by the impact of the drops. In order to calculate the vertical motion of the waves, I ...
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14 views
Molecular dynamics simulation: fluctuating dipole model implementation
I'm conducting a molecular dynamics simulation for silica. Some time ago I turned to the fluctuating dipole model, and after a much efforts I'm still having problems implementing it.
In short, all ...
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45 views
Should a 1D Guassian wave oscillate?
I wrote a few lines that numerically solve Maxwell's equations.
The result is a moving wave that looks like a single pulse.
This looks strange to me because I expect waves to move in oscillator ...
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93 views
Requesting decent analysis on FEMM simulation data
I have been running simulations in FEMM for different magnetic configurations as an attempt to understand better how do they work and why it is impossible to come up with the holy grail of energy: a ...
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98 views
Can critical slowing down be used to distinguish between first and second order phase transitions?
We are simulating a percolation dynamic system where we obtain first or second order phase transitions depending on certain parameters. For certain values it is clear that we are in the first-order ...
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67 views
How to determine field strength of a dipole embedded in a sphere?
I have a dipole which is embedded in a sphere.
Sections of the sphere may consist of materials of differing magnetic permeability.
I'd like to determine the strength of the magnetic field at ...
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281 views
Hydraulic System in a Simulation
A simulation project we are on, we have a machine with hydraulics that are powered (They don't just look like they move something, they are the only thing moving/turning/lifting something) - However, ...
