Essays about: "N-body problem"
Showing result 1 - 5 of 13 essays containing the words N-body problem.
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1. N-body simulations of exoplanets and their moons
University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionenAbstract : The planet-planet interactions in a many-planet system cannot be analytically calculated. Instead, they have to be investigated by using an N-body simulation. I discuss three questions about the N-body interactions in planetary systems: The first two are on the system 55 Cnc, a system with five known planets around a K-type star. READ MORE
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2. Investigating the density evolution of charged particles inside a square domain
University essay from Uppsala universitet/Institutionen för fysik och astronomiAbstract : In this work, I propose a hybrid particle simulator for charged particles. The simulator consists of a physics-informed neural network, which can handle arbitrary external electric fields with continuous coordinates by solving the Poisson equation, and a graph-based algorithm that computes the interacting forces between the particles. READ MORE
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3. On The Run: How Fast Runaway Stars Can Escape From Their Home Cluster?
University essay from Lunds universitet/Astronomi - Genomgår omorganisationAbstract : Galaxies contain a wide variety of star clusters with different properties. Each cluster is a possible source of runaway stars, which can be progenitors of supernovae in other parts of the galaxy than their home cluster. Considering runaway stars in galaxy simulations has shown to increase the galactic feedback. READ MORE
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4. Performance of Adaptive Fast Multipole Methods In Three Dimensions For Time-Dependent Problem
University essay from Uppsala universitet/Institutionen för informationsteknologiAbstract : In the last two decades, physical constraints in chip design have spawned a paradigm shift in computer architecture. The availability of multi-core threaded systems has increased the parallel execution which has provided an opportunity for analysing computationallydemanding problems. READ MORE
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5. B-plane orbital resonance analysis and applications
University essay from KTH/RymdteknikAbstract : Many space engineering and orbital mechanics applications seek for the usage of focused mathematical models, capable of providing useful insight onto particular phenomena or exploiting some theoretical and physical tools to reduce the computational costs and/or increase the level of accuracy reached. Orbital resonances are one of the phenomena that needs to be properly modelled, both for exploiting such features in the mission design phase and to predict possible resonant returns of threatening objects closely approaching a specified planet. READ MORE
