According to our results, the usage of the Yin-Yang grid greatly enhances the suitability and efficiency of 3D explicit Eulerian codes based on spherical polar coordinates for astrophysical flows.
#Yin and yang theory test code
The code has also been successfully applied to simulations of core collapse supernovae (Wongwathanarat et. Most Popular Study Business Design Technology Travel Explore all categories yin yang theory. Try this test now to find out which of these forces mainly drives you, or whether you are equal in both. Moreover, the solutions obtained with the Yin-Yang grid exhibit no peculiar behaviour at the boundary between the two grid patches. Yin - Yang Theory Yin Yang Theory I- What is the Yin-Yang theory Yin Passive Cold Death Winter Female Night Even Moon Water Yang Active Hot Life Summer Male Day Odd Sun Log in Upload File. The Chinese Yin and Yang is an ancient symbol for balance, with Yin representing darkness and Yang representing light. The modified code successfully has passed several standard hydrodynamic tests producing results which are in very good agreement with analytic solutions.
al, 2010) into the explicit Eulerian grid-based finite volume hydrodynamics code PROMETHEUS including self-gravity. The Yin-Yang grid has been implemented by us (Wongwathanarat et. The transformation of coordinates and vector components between the two patches is straightforward and symmetric, thus allowing for an easy and straightforward implementation of the grid into a 3D code already employing spherical polar coordinates.
In comparison with other types of overset grids in spherical geometry, the Yin-Yang grid geometry is simple, as both the Yin and the Yang grid consist of a part of a usual spherical polar grid. The Yin-Yang grid consists of two overlapping grid patches named "Yin" and "Yang" grid. The first problem can be eased and the second one avoided by applying an overlapping grid technique called Yin-Yang grid, which is a two-patch overset grid proposed by Kageyama & Sato (2004) for geophysical simulations. Three dimensional explicit hydrodynamic codes based on spherical polar coordinates using a single spherical polar grid suffer from a severe restriction of the time step size due to the convergence of grid lines near the poles of the coordinate system, and from numerical artifacts at the symmetry axis of the grid.
A.Wongwathanarat, N.J.Hammer, and Ewald Müller
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