Combined Finite Volume and Smoothed Particle Method

1998 ◽  
pp. 50-74
Author(s):  
A. Egelja ◽  
D. Kröner ◽  
R. Schwörer ◽  
N. Lanson ◽  
M. Mancip ◽  
...  
Keyword(s):  
Finite Volume ◽  
Particle Method ◽  
Smoothed Particle

Combined Finite Volume and Smoothed Particle Method

1998 ◽  
pp. 50-74 ◽  
Author(s):  
A. Egelja ◽  
D. Kröner ◽  
R. Schwörer ◽  
N. Lanson ◽  
M. Mancip ◽  
...  
Keyword(s):  
Finite Volume ◽  
Particle Method ◽  
Smoothed Particle

Flow Simulation of Jet Deviation by Rotating Pelton Buckets Using Finite Volume Particle Method

2015 ◽  
Vol 137 (7) ◽  
Author(s):  
Christian Vessaz ◽  
Ebrahim Jahanbakhsh ◽  
François Avellan
Keyword(s):  
Finite Volume ◽  
High Speed ◽  
Pressure Field ◽  
Flow Simulation ◽  
Numerical Data ◽  
Particle Method ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Convergence Study ◽  
Good Agreement

The objective of the present paper is to perform numerical simulations of a high-speed water jet impinging on rotating Pelton buckets using the finite volume particle method (FVPM), which combines attractive features of smoothed particle hydrodynamics (SPH) and conventional grid-based finite volume. The particles resolution is first validated by a convergence study. Then, the FVPM results are validated with available measurements and volume of fluid (VOF) simulations. It is shown that the pressure field in the buckets inner wall is in good agreement with the experimental and numerical data and the evolution of the flow pattern matches the high-speed visualization.

scholarly journals Extensions of the meshless Finite Volume Particle Method (FVPM) for static and dynamic free-surface flows

2018 ◽  
Author(s):  
Nathan Quinlan
Keyword(s):  
Free Surface ◽  
Finite Volume ◽  
Pressure Fluctuations ◽  
Particle Method ◽  
Free Surface Flows ◽  
Hydrostatic Equilibrium ◽  
Surface Flows ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Volume Method

The Finite Volume Particle Method (FVPM) is a meshless method that incorporates features of both Smoothed Particle Hydrodynamics and the Finite Volume Method. Here, two new formulations are presented which enhance its performance in simulation of free surface flows. One is a method for determining the velocity of the free surface, making use of a partial Riemann problem to analyse the flow between the particle barycentre and the geometric free surface. The second is a well-balanced formulation for gravity forces that enables hydrostatic equilibrium to be preserved exactly. Results are presented for hydrostatic, 1D impact, dambreak and deep-water standing wave test cases. Computations display convergence and good agreement with experimental data. The new methods recover exact hydrostatic equilibrium, improve robustness and reduce acoustic pressure fluctuations in dambreak flows, and reduce dissipation.

scholarly journals Flow simulation of a Pelton bucket using finite volume particle method

2014 ◽  
Vol 22 (1) ◽  
pp. 012003 ◽  
Author(s):  
C Vessaz ◽  
E Jahanbakhsh ◽  
F Avellan
Keyword(s):  
Finite Volume ◽  
Flow Simulation ◽  
Particle Method

3D Simulation of Molten Metal Freezing Behaviour Using Finite Volume Particle Method

2010 ◽  
Author(s):  
Rida S. N. Mahmudah ◽  
Masahiro Kumabe ◽  
Takahito Suzuki ◽  
LianCheng Guo ◽  
Koji Morita ◽  
...  
Keyword(s):  
Molten Metal ◽  
Finite Volume ◽  
Particle Method ◽  
Metal Structure ◽  
Freezing Behavior ◽  
Severe Accident ◽  
Particle Methods ◽  
Freezing Process ◽  
Penetration Length ◽  
Moving Particle

Understanding the freezing behavior of molten metal in flow channels is of importance for severe accident analysis of liquid metal reactors. In order to simulate its fundamental behavior, a 3D fluid dynamics code was developed using Finite Volume Particle (FVP) method, which is one of the moving particle methods. This method, which is fully Lagrangian particle method, assumes that each moving particle occupies certain volume. The governing equations that determine the phase change process are solved by discretizing its gradient and Laplacian terms with the moving particles. The motions of each particle and heat transfer between particles are calculated through interaction with its neighboring particles. A series of experiments for fundamental freezing behavior of molten metal during penetration on to a metal structure was also performed to provide data for the validation of the developed code. The comparison between simulation and experimental results indicates that the present 3D code using the FVP method can successfully reproduce the observed freezing process such as molten metal temperature profile, frozen molten metal shape and its penetration length on the metal structure.

scholarly journals GPU-accelerated Pelton turbine simulation using finite volume particle method coupled with linear eddy viscosity models

2019 ◽  
Vol 240 ◽  
pp. 072018 ◽  
Author(s):  
S Alimirzazadeh ◽  
T Kumashiro ◽  
S Leguizamón ◽  
A Maertens ◽  
E Jahanbakhsh ◽  
...  
Keyword(s):  
Finite Volume ◽  
Eddy Viscosity ◽  
Particle Method ◽  
Pelton Turbine ◽  
Viscosity Models
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