Unsteady open boundaries for SPH using semi-analytical conditions and Riemann solver in 2D

被引：40

作者：

Ferrand, Martin ^{[2
]}

Joly, Antoine ^{[1
]}

Kassiotis, Christophe ^{[1
]}

Violeau, Damien ^{[1
]}

Leroy, Agnes ^{[1
]}

Morel, Francois-Xavier

Rogers, Benedict D. ^{[3
]}

机构：

[1] Univ Paris Est, ENPC, EDF R&D, St Venant Lab Hydraul,CEREMA, F-78400 Chatou, France

[2] EDF R&D, Fluid Mech Energy & Environm, F-78400 Chatou, France

[3] Univ Manchester, Sch Mech Aerosp & Civil Engn, Modelling & Simulat Ctr MaSC, Manchester M13 9PL, Lancs, England

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2017年 / 210卷

关键词：

Smoothed particle hydrodynamics; Open boundaries; Unsteady flows; Confined flows; Free-surface flows; Riemann invariants; Inlet/outlet; SMOOTHED PARTICLE HYDRODYNAMICS;

D O I：

10.1016/j.cpc.2016.09.009

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Due to the Lagrangian nature of SPH, treating inlet/outlet boundaries (that are intrinsically Eulerian) is a challenging issue. An extension to the Unified Semi-Analytical boundary conditions is presented to deal with unsteady open boundaries in confined and free-surface flows. The presented method uses Riemann invariants to calculate flow properties near the open boundaries, thus allowing the possibility to treat complex shapes. Furthermore, details are presented for a parallel implementation of this method, including particle creation and deletion, updating properties of vertices and segments, and additional constraints on the time step. Simple validation cases are then displayed to illustrate the performance of the proposed method as well as the ability to deal with complex problems such as generation of water waves and free outlets. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：29 / 44

页数：16

共 31 条

[1]

Archambeau F., 2004, International Journal on Finite Volumes, V1, P1

[2]

Blondel F, 2013, INT J FINITE, V10, P1

[3]

Bouscasse B., 2013, 8 SPHERIC INT WORKSH

[4]

Braun S., 2015, 10 SPHERIC INT WORKS

[5]

Brezzi Franco, 1984, Efficient Solutions of Elliptic Systems, P11, DOI DOI 10.1007/978-3-663-14169-3_2

[6]

Dean R. G., 1991, ADV SERIES OCEAN ENG, V2

[7] A remedy for numerical oscillations in weakly compressible smoothed particle hydrodynamics [J].

Fatehi, R. ;

Manzari, M. T. .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2011, 67 (09) :1100-1114

[8] A 5TH-ORDER STOKES THEORY FOR STEADY WAVES [J].

FENTON, JD .

JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE, 1985, 111 (02) :216-234

[9] Unified semi-analytical wall boundary conditions for inviscid, laminar or turbulent flows in the meshless SPH method [J].

Ferrand, M. ;

Laurence, D. R. ;

Rogers, B. D. ;

Violeau, D. ;

Kassiotis, C. .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2013, 71 (04) :446-472

[10] A new 3D parallel SPH scheme for free surface flows [J].

Ferrari, Angela ;

Dumbser, Michael ;

Toro, Eleuterio F. ;

Armanini, Aronne .

COMPUTERS & FLUIDS, 2009, 38 (06) :1203-1217

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