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  • Discrete vortices  (2)
  • Axisymmetric flow  (1)
  • 1
    Electronic Resource
    Electronic Resource
    An axisymmetric model of separated flow about a sphere using discrete vortices (1991)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 12 (1991), S. 809-823 
    Details
    ISSN: 0271-2091
    Keywords: Axisymmetric flow ; Sphere Vortices ; Discrete vortices ; Cloud in cell ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A procedure for the calculation of the starting flow around a sphere in a uniform stream is presented. The flow field is simulated by a flow of ideal fluid with embedded vorticity. With the assumption that the flow remains symmetric, the vorticity field is approximated by a number of discrete circular line vortices. The image vortices to satisfy the boundary condition for the normal component of velocity on the surface of the sphere are determined by Butler's sphere theorem. The Stokes streamfunction is used for the field description. The motion of vortices is tracked by the vortex-in-cell method, the cells being formed by square grids.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650120902
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  • 2
    Electronic Resource
    Electronic Resource
    The calculation of separated flows using a distributed memory mimd computer (1993)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 17 (1993), S. 1115-1133 
    Details
    ISSN: 0271-2091
    Keywords: Parallei processing ; MIMD ; Discrete vortices ; Distributed memory ; Separated flow ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A brief description of distributed memory MIMD computers, and in particular, a transputer based computing surface, is presented. The factors to be considered in their application to computationally intensive CFD problems are discussed with reference to the discrete vortex method used for the solution of separated flow about bluff bodies. Three parallel algorithms for its implementation are presented, and the results are discussed in the context of the speed-ups obtained using up to sixty-four parallel processors.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650171207
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    Paper (German National Licenses)
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