All Questions
Tagged with algorithms newtonian-gravity
5
questions
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How to calculate acceleration due to gravity in a 3D $N$-Body system?
How do you calculate acceleration due to gravity for objects in 3D space?
My current understanding for the force due to gravity on object $i$ from object $j$ is
$$\mathbf{F}_g=(\mathbf{r}_j-\mathbf{r}...
- 157
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How can I use Runge-Kutta4 to solve this orbit in polar coordinates?
I want to simulate a simple orbit of a planet moving around a star which is fixed in position. I have formulated the ODEs for this problem using Lagrangian Mechanics and have found the equations of ...
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4
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$N$-body gravity simulator: why does energy conservation break down when introducing an adaptive timestep?
I am playing with an N-body gravity simulator using the velocity-verlet algorithm. In the actual simulation I normalize everything so that it is nicely behaved numerically, but I'll express things in ...
- 439
2
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Could you use the Barnes-Hut algorithm iteratively-- with multiple center quadrants?
I was wondering if you could use Barnes-Hut simulation beyond what it was originally intended to be. For many Barnes-Hut algorithms, the forces are only considered for a single quadrant, the centroid, ...
0
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How to simulate gravitational interaction of bodies in space?
I want to try simulating some bodies in space using the basic formulas I learned in my college mechanics class.
So I know Newton's Law and some basic mechanics equations:
$\vec{F} = G\frac{m_1m_2}{r^...
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