Instytut Budownictwa Wodnego
Polskiej Akademii Nauk

Essay #8128 details

ATTRIBUTEVALUE
typeA
database id8128
titleModeling of water flows around a circular cylinder with the SPH method
authorsSzmidt K.1, Hedzielski B.1
affiliations
pages39 — 60
notesMaszynopis w oprac. Tp 4344
full text linkhttp://www.ibwpan.gda.pl/storage/app/media/ahem/ahem61str039.pdf
keywordstransient water wave, SPH modeling, boundary conditions, approximation of shear forces
abstractsThe paper describes the SPH modeling of a plane problem of fluid flow around a rigid circular cylinder. In the model considered, the cylinder is placed in a rectangular fluid domain at a certain distance from a horizontal plane boundary, and it is subjected to fluid flow forces. The fluid motion is induced by a piston type generator. The generator - fluid system starts to move from rest at a certain moment of time. The work aims at a discrete description of the fluid flow around the cylinder and, at the same time, calculation of the pressure distribution along the circumference of the cylinder and the resultant of the pressure on the cylinder. In order to solve the initial value problem considered, a new SPH formulation of boundary conditions on the cylinder surface is proposed which match the physical condition for the fluid velocity at this boundary. For a viscous fluid, an approximate description of the stress tensor is formulated which allows to reduce the differentiation of field functions to the first order in calculating the shear forces in the SPH approach.
attributes [reviewed] [scientific]
languageen
points14
PART OF
typeC
database id8457
year2014
seriesArchives of Hydro-Engineering and Environmental Mechanics
issueVol. 61, No. 1-2
publisherWydawnictwo IBW PAN
placeGdańsk

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