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Prog. Theor. Phys. Vol. 92 No. 5 (1994) pp. 939-960

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Numerical Simulation of Viscous Flow by Smoothed Particle Hydrodynamics

Hidenori Takeda, Shoken M. Miyama* and Minoru Sekiya**

Department of Aeronautical Engineering, Kyoto University, Kyoto 606-01
*National Astronomical Observatory, Mitaka 181
**Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812

(Received July 19, 1994)

Abstract:

Smoothed particle hydrodynamics (SPH) is an effective numerical method to solve various problems, especially in astrophysics, but its applications have been limited to inviscid flows since it is considered not to yield ready solutions to fluid equations with second-order derivatives. Here we present a new SPH method that can be used to solve the Navier-Stokes equations for constant viscosity. The method is applied to two-dimensional Poiseuille flow, three-dimensional Hagen-Poiseuille flow and two-dimensional isothermal flows around a cylinder. In the former two cases, the temperature of fluid is assumed to be linearly dependent on a coordinate variable x along the flow direction. The numerical results agree well with analytic solutions, and we obtain nearly uniform density distributions and the expected parabolic and paraboloid velocity profiles. The density and velocity field in the latter case are compared with the results obtained using a finite difference method. Both methods give similar results for Reynolds number Re = 6, 10, 20, 30 and 55, and the differences in the total drag coefficients are about 2 ∼4


URL : http://ptp.ipap.jp/link?PTP/92/939/
DOI : 10.1143/PTP.92.939

[ Full Text PDF : FREE ACCESS (2099K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 125 No. 6 (2011) pp. 1091-1121 :
    Theoretical Analysis of the No-Slip Boundary Condition Enforcement in SPH Methods
    Fabricio Maciá, Matteo Antuono, Leo M. González and Andrea Colagrossi

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