Astrophysical smooth particle hydrodynamics
نویسندگان
چکیده
منابع مشابه
Astrophysical Smooth Particle Hydrodynamics
In this review the basic principles of smooth particle hydrodynamics (SPH) are outlined in a pedagogical fashion. To start, a basic set of SPH equations that is used in many codes throughout the astrophysics community is derived explicitly. Much of SPH’s success relies on its excellent conservation properties and therefore the numerical conservation of physical invariants receives much attentio...
متن کاملSmooth particle hydrodynamics simulation of surface coating
The simulation of plane impinging jets using the Lagrangian technique of smooth particle hydrodynamics is presented. In Section 1 the impingement of a plane jet onto a stationary surface is considered for Reynolds numbers 800, 4000, 8000 and Froude number 4. For each case, the height of the associated streams is measured and compared with both experimental and theoretical results. The agreement...
متن کاملNSERC USRA Report Smooth Particle Hydrodynamics
This formulation requires well defined boundary conditions; and solvers to those systems are, so far, computationally expensive. The existing SPH-algorithm solves the dynamic in a Projection-Correction Scheme extrapolate the ˆ uk+1, the velocity-projection, without pressure term and later correct it via solving the p as an explicit function of density. Moreover, since field variables is approxi...
متن کاملNumerical Simulation of Seepage Flow through Dam Foundation Using Smooth Particle Hydrodynamics Method (RESEARCH NOTE)
In this paper, a mesh-free approach called smooth particle hydrodynamics (SPH) is proposed to analyze the seepage problem in porous media. In this method, computational domain is discredited by some nodes, and there is no need for background mesh; therefore, it is a truly meshless method. The method was applied to analyze seepage flow through a concrete dam foundation. Using the SPH method, the...
متن کاملHydrodynamics, magnetohydrodynamics, and astrophysical plasmas
1 Introduction It is not uncommon to encounter the assertion that the dynamical evolution of the large-scale bulk velocity v of a collisionless gas is not described by the hydrodynamic (HD) equations. A favorite " reason " is the statement that pressure cannot be defined in the absence of collisions. Then in some quarters it is believed that the large-scale bulk dynamics of a swirling magnetize...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Astronomy Reviews
سال: 2009
ISSN: 1387-6473
DOI: 10.1016/j.newar.2009.08.007