Questions tagged [simulation]
Simulation is the process of mimicking the behaviour of a real physical process or system using a representative model.
10
questions
19
votes
5answers
3k views
Parallel Scientific Computation Software Development Language?
I want to develop a parallel scientific computation software from scratch. I want some thoughts on which language to start. The program involves reading/writing data to txt files and doing heavy ...
13
votes
1answer
1k views
Conserving Energy in Physics Simulation with imperfect Numerical Solver
I am creating a C++ Physics Simulation where I need to move an rigid body through an acting force field.
Problem: simulation does not conserve energy.
Quesiton: abstractly, how is conservation of ...
3
votes
2answers
2k views
GPU-enabled Lattice Boltzmann solvers?
Is anybody aware of any GPU-enabled Lattice Boltzmann solvers (preferably on C++/OpenCL and open-source) that would be recommended?
I have found Advanced Simulation Library, but it seems to be very ...
3
votes
1answer
103 views
Simulating evolution of comet
I have to present a working 3D simulation of an arbitrary comet in a close proximity to the Sun or to the Jupiter. In specific, I want to simulate comets D/1993 F2 and C/2011 W3, using the theoretical ...
2
votes
1answer
241 views
How do I simulate an open end?
When simulating a partial differential equation describing a physical phenomenon like vibrations on a string, fluid flow in a chamber or quantum wave functions, the most straight-forward way is to ...
8
votes
2answers
869 views
How to solve the stiff equation in this Restricted Three Body Problem numerically?
I've come across a stiff equation in solving the Circular Restricted Three Body Problem.
[An object is moving considering the effect of the gravitational forces caused by two gravitational sources ...
6
votes
2answers
438 views
Implementing the pressure correction method using finite elements
Ok so I am nearing the completion of my finite element Navier-Stokes solver that uses the $\theta$-method for time stepping and the pressure correction method for the pressure. I am following the ...
5
votes
3answers
218 views
Is there a way to reduce aberration in computations of planets' trajectories?
I don't think the title is very accurate , sorry for that.
I simulate bodies in space using two timestep:
the TIMESTEP is the Δt wich I use to make the calculation
and XTIME is the number of times ...
4
votes
1answer
436 views
Verlet Leap-frog Method of approximating orbits
I found the following simulation of an orbit given the semi-major axis of the ellipse, eccentricity, initial velocity, the mass of the object being orbited, and initial position of the orbiting ...
1
vote
2answers
265 views
Effective way to build the neighbor's list in MD
I'm trying to implement the following form of the cell/neighbor list method in my MD code. I have divided my simulation box into a fixed number of cells, and according to its positions, I have ...
