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  • 1
    Electronic Resource
    Electronic Resource
    Propagation of ocean waves in discrete spectral wave models
    Amsterdam : Elsevier
    Journal of Computational Physics 68 (1987), S. 307-326 
    Details
    ISSN: 0021-9991
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0021-9991(87)90060-X
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    An analytical treatment of a class of plane plastic strain problems (1967)
    Springer
    Journal of engineering mathematics 1 (1967), S. 143-158 
    Details
    ISSN: 1573-2703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Technology
    Notes: Conclusion In the foregoing sections a series of solutions of the problem of plastic plane strain have been found, all of which are of the following form: the Cartesian coordinates x and y of the physical plane are trigonometrical functions of θ, the direction of the major principal stress, multiplied by a power of s, a quantity directly connected with the isotropic stress. If the boundary condition can be described in the same form, the boundary value problem can be solved. In sec. 4 this was done for a special sort of boundary condition. There the shape of the boundary was arbitrary, but the surface traction was a constant normal pressure. The analytical method seems very suitable for the determination of the stresses in the plastic region around a hole. The method may also be applicable to other sorts of plasticity problems, but this is beyond the scope of the present paper. The possibilities are limited in the first place by the requirement that along the boundary the functions θ and s are continuous and further that there exists a one-to-one relation between the points (θ, s) and (x, y) of the boundary. One conclusion of practical importance to be drawn from sec. 3 is that the plastic stress distribution around a hole of general shape, and loaded by an arbitrary surface traction, will tend to circular symmetry at a great distance from the hole. An example of this behaviour is shown in fig. 8.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01540589
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  • 3
    Electronic Resource
    Electronic Resource
    Numerical outflow boundary conditions for the shallow-water equations (1985)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 5 (1985), S. 393-397 
    Details
    ISSN: 0271-2091
    Keywords: Shallow-Water Equations ; Spurious Solutions ; Numerical Boundary Condition ; Advection ; 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 simple explanation is given of the occurrence of wiggles in the flow field near outflow boundaries. If the shallow-water equations are solved numerically spurious solutions with an oscillatory character turn out to exist, which can be generated by certain additional numerical boundary conditions on the downstream side. The wiggles usually damp quickly with the distance from the boundary. Some ways of handling the downstream boundary are given which largely avoid the occurrence of wiggles.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650050408
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    Paper (German National Licenses)
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