Importance of unsteady contributions to force and heating for particles in compressible flows. Part 2: Application to particle dispersal by blast waves

2011 ◽  
Vol 37 (9) ◽  
pp. 1013-1025 ◽  
Author(s):  
Y. Ling ◽  
A. Haselbacher ◽  
S. Balachandar
Keyword(s):  
Compressible Flows ◽  
Blast Waves ◽  
Particle Dispersal

A Contact SPH Method with High-Order Limiters for Simulation of Inviscid Compressible Flows

2013 ◽  
Vol 14 (2) ◽  
pp. 425-442 ◽  
Author(s):  
Xueying Zhang ◽  
Haiyan Tian ◽  
Leihsin Kuo ◽  
Wen Chen
Keyword(s):  
Riemann Problem ◽  
Compressible Flows ◽  
Taylor Series Expansion ◽  
Blast Waves ◽  
High Order ◽  
Reconstruction Process ◽  
Riemann Solvers ◽  
Contact Points ◽  
Particle Hydrodynamics ◽  
Dummy Particles

AbstractIn this paper, we study a class of contact smoothed particle hydrodynamics (SPH) by introducing Riemann solvers and using high-order limiters. In particular, a promising concept of WENO interpolation as limiter is presented in the reconstruction process. The physical values relating interactional particles used as the initial values of the Riemann problem can be reconstructed by the Taylor series expansion. The contact solvers of the Riemann problem at contact points are incorporated in SPH approximations. In order to keep the fluid density at the wall rows to be consistent with that of the inner fluid wall boundaries, several lines of dummy particles are placed outside of the solid walls, which are assigned according to the initial configuration. At last, the method is applied to compressible flows with sharp discontinuities such as the collision of two strong shocks and the interaction of two blast waves and so on. The numerical results indicate that the method is capable of handling sharp discontinuity and efficiently reducing unphysical oscillations.

3-D unstructured adaptive supercomputing for transient problems of volcanic blast waves

1998 ◽  
Author(s):  
P. Voinovich ◽  
E. Timofeev ◽  
K. Takayama ◽  
T. Saito ◽  
A. Galyukov
Keyword(s):  
Blast Waves ◽  
Transient Problems
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