421 Free Surface Flow Analysis of an Axial Flow Hydraulic Turbine with a Collection Device

2014 ◽  
Vol 2014.24 (0) ◽  
pp. 186-189
Author(s):  
Sou Hirama ◽  
Yasuyuki Nishi ◽  
Terumi Inagaki ◽  
Yanrong Li ◽  
Norio Kikuchi
Keyword(s):  
Free Surface ◽  
Flow Analysis ◽  
Axial Flow ◽  
Free Surface Flow ◽  
Hydraulic Turbine ◽  
Surface Flow ◽  
Collection Device

Performance characteristics of axial flow hydraulic turbine with a collection device in free surface flow field

2017 ◽  
Vol 112 ◽  
pp. 53-62 ◽  
Author(s):  
Yasuyuki Nishi ◽  
Genki Sato ◽  
Daishi Shiohara ◽  
Terumi Inagaki ◽  
Norio Kikuchi
Keyword(s):  
Free Surface ◽  
Flow Field ◽  
Axial Flow ◽  
Free Surface Flow ◽  
Hydraulic Turbine ◽  
Surface Flow ◽  
Performance Characteristics ◽  
Collection Device

Free Surface Flow Analysis by Smoothed Particle Hydrodynamics

2006 ◽  
Author(s):  
Jun Imasato ◽  
Yuzuru Sakai
Keyword(s):  
Free Surface ◽  
Smoothed Particle Hydrodynamics ◽  
Particle Density ◽  
Flow Analysis ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Pressure Poisson Equation ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Marker And Cell Method

In this study a new computational algorithm to enforce incompressibility in free surface flow analysis using Smoothed Particle Hydrodynamics (SPH) is presented. The method uses two steps. The first step is a fractional step for solving velocity field forward in time without incompressibility. Then the second step is computed to compensate the pressure Poisson equation using the mass constant equation in a particle field. This method is composed of the above two steps and is similar to SMAC (Simplified Marker and Cell) method commonly used in CFD. However in SPH simulation, the introduction of incompressibility of fluid is easily realized using the particle density concept and the boundary of free surface of fluid is also controlled conveniently by the concept. In this study the algorithm is applied to sloshing problems of vessels with fluid. The numerical results using this algorithm show good results in the behaviors of free surface flow and the pressure evaluations at the wall of the vessels.

scholarly journals Use of Euler free surface flow analysis to provide appropriate injection conditions in Euler-Lagrange numerical models

2013 ◽  
Author(s):  
A. Rossetti ◽  
P. S. Nagabhushan ◽  
B. Barabas ◽  
J. P. Schnitzler ◽  
A. Kefalas ◽  
...  
Keyword(s):  
Free Surface ◽  
Numerical Models ◽  
Flow Analysis ◽  
Free Surface Flow ◽  
Surface Flow

scholarly journals Parallel Finite Element Method for Large-scale Free Surface Flow Analysis Based on ALE method

1999 ◽  
Vol 2 ◽  
pp. 233-240
Author(s):  
Masaaki SAKURABA ◽  
Seizo TANAKA ◽  
Hiroyuki TAMAKI ◽  
Kazuo KASHIYAMA
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Free Surface ◽  
Large Scale ◽  
Flow Analysis ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Ale Method ◽  
Scale Free ◽  
Parallel Finite Element
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