On the use of particle based methods for cosmological hydrodynamical simulations

Schaller, M.; Bower, R.G.; Theuns, T.

Abstract

In this paper, we attempt to clarify the relation between different particle based methods and try to assess their viability in the context of osmological simulations. We identify two classes of methods depending on the number of neighbours required to compute a single interaction between a pair of particles. From then, we argue that SPH-ALE is a potential candidate for future astronomy simulation implementations as its computational complexity versus standard SPH does not change. Building on our analysis of the relations between the different schemes, we then attempt to design a novel technique to correct for errors entering the equations of motion of SPH-ALE by using the ALE part of the method and trying to suppress the errors before they affect the flow.

Citation

Schaller, M., Bower, R., & Theuns, T. (2013). On the use of particle based methods for cosmological hydrodynamical simulations.

• Conference Name: 8th International SPHERIC Workshop
• Conference Location: Trondheim, Norway
• Publication Date: 2013
• Deposit Date: Jun 22, 2013
• Publisher URL: http://icc.dur.ac.uk/~jlvc76/Files/Papers/SPHERIC_2013.pdf