All Questions
Tagged with computational-physics c++
13
questions
2
votes
1
answer
286
views
Why do my satellites fall out of orbit?
I have set up Newtonian Gravity in my Game Engine, allowing me to simulate the gravitational attraction between celestial bodies.
I have the following variables defined:
...
- 121
2
votes
1
answer
197
views
Speeding up 3 body problem acceleration calculation
I want to find optimizations to my code for the 3BP, and more specifically computing accelerations. I'm using a data-driven approach, so I have a bodies structure ...
- 41
2
votes
2
answers
1k
views
Understanding leapfrog integration algorithm
The leapfrog.cpp is an implementation of leapfrog integration algorithm where f() function is being integrated:
leapfrog.cpp
<...
- 75
-1
votes
1
answer
367
views
Can someone help or point me out to C++ source code for a two body orbit simulation using symplectic integration?
I've professional experience with physics simulations and C++ programming, although
I don't have specific experience with astrophysics simulations.
I'm trying to build a two-body evolving system ...
- 19
2
votes
1
answer
393
views
Calculating the Strange Attractor of the Duffing Oscillator in C++
I am simultaneously trying to learn computational physics methods, chaos, and C++. I think this is the right site for the question, and I apologise if not.
I started working through Thijssen's ...
- 337
2
votes
2
answers
12k
views
Physics Simulation in C++
OK, I know a bit of C++ (very basic syntax), and I want to do physics simulation in C++, like stuff like (also the things mentioned here):
Ripples and waves over a 2-d surface
Vibrating string/...
- 121
1
vote
2
answers
5k
views
Solving the 1D Particle-in-a-Box using C++
I've just finished learning the physics behind the problem and would like to write a program in C++ than can solve the problem. I'm actually stuck at the start. I've quite a bit of research, the ...
- 111
5
votes
1
answer
956
views
Help with Fourier beam propagation method
I am working on implementing the Fourier beam propagation method in C++. I am really more of a programmer than a physicist but I think I have a good understanding of what I am trying to do. Here is ...
- 173
3
votes
0
answers
55
views
Coupled Diff Equation from Bose Einstein distribution
I am a student doing physics hons and have had very little experience in programming. This semester we are supposed to do a computational project in thermodynamics. I have to solve these two coupled ...
- 31
0
votes
1
answer
77
views
Unexpected behavior, values tend to converge instead of fluctuate. (MD)
I am writing a molecular dynamics program to create an lattice and populate it with atoms/molecules. These then are given random velocities and the system is initialized. Then throughout time the ...
1
vote
0
answers
707
views
Can you provide me with the source code of DMRG writen by C++?
I want to study the Density matrix renormalization Group(DMRG). Can some one provide me with the souce code which is writen by C++ for study purpose only? The code is not necessiary very professional, ...
- 111
0
votes
2
answers
4k
views
Most efficient library to diagonalize exactly large hermitian or unitary matrices
I am working on a physics problem which requires obtaining the exact eigenvalues and eigenvectors of Hermitian and Unitary matrices numerically. Naturally I would like to ask the experts what are the ...
- 101
24
votes
5
answers
6k
views
What language should I use when teaching an undergraduate course in computer programming?
Going to teach students of undergraduate level a course titled Introduction to Computer Programming. I am confused a bit. In Computational Physics scientists use C/C++ or Python or Fortran,CUDA etc.......
- 343