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  • Electronic Resource  (17)
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  • Electronic Resource  (17)
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  • 1
    Electronic Resource
    Electronic Resource
    Transition to turbulence in a non-standard rotating flow
    Amsterdam : Elsevier
    Physics Letters A 96 (1983), S. 236-238 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(83)90341-9
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  • 2
    Electronic Resource
    Electronic Resource
    New aspects of unsteady couette flow
    Amsterdam : Elsevier
    Physics Letters A 83 (1981), S. 333-336 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(81)90154-7
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Mode interaction in a double pendulum
    Amsterdam : Elsevier
    Physics Letters A 166 (1992), S. 224-229 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(92)90367-U
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  • 4
    Electronic Resource
    Electronic Resource
    Divide and Conquer? Effects of Decomposition on the Accuracy and Calibration of Subjective Probability Distributions
    Amsterdam : Elsevier
    Organizational Behavior and Human Decision Processes 55 (1993), S. 207-227 
    Details
    ISSN: 0749-5978
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/obhd.1993.1031
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Symmetry breaking and multiplicity of states in small aspect ratio Taylor–Couette flow (2002)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 14 (2002), S. 2778-2787 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the results of an experimental and numerical study of the bifurcation structure of steady cellular states in small aspect ratio Taylor–Couette flows. In particular we focus on Z2 symmetry-breaking bifurcations where asymmetric states which break the mid-plane symmetry arise. We find good quantitative agreement between numerical and experimental results for the bifurcation set. The surprising new observation we make is that the symmetry-breaking bifurcation sequences coalesce in a self-consistent way as the aspect ratio is reduced so that only symmetric steady flows exist for very short cylinders. The implications of this for the onset of disordered motion are discussed. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1485997
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  • 6
    Electronic Resource
    Electronic Resource
    Flow state multiplicity in convection (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 11 (1999), S. 2815-2817 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Pattern formation in a layer of fluid heated from below is an example of macroscopic ordering in continuous media. Here we show that in a relatively compact experimental version of the problem, a rich and diverse set of stable flows can be found. These flows, many of which are novel, can be categorized and understood in terms of their symmetry properties. This approach shows promise for providing insight into the more complicated fluid motion that occurs as the lateral dimension of the layer is increased. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870178
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  • 7
    Electronic Resource
    Electronic Resource
    On the creation of stagnation points near straight and sloped walls (2000)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 12 (2000), S. 425-431 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the results of an experimental and numerical study of the creation of stagnation points in a rotating cylinder of fluid where one endwall is rotated. Good agreement is found with previous results where the stagnation points are formed on the free core of the primary columnar vortex. The effect of adding a small cylinder along the center of the flow is then investigated and the phenomena are found to be robust despite the qualitative change in the boundary conditions. Finally, we show that sloping the inner cylinder has a dramatic effect on the recirculation such that it can either be intensified or suppressed. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870320
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  • 8
    Electronic Resource
    Electronic Resource
    Bifurcation phenomena in a Taylor–Couette flow with asymmetric boundary conditions (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 13 (2001), S. 136-140 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present the results of an experimental and numerical study of bifurcation phenomena in the flow between a rotating inner cylinder and a stationary outer one, the so-called Taylor–Couette problem. Novel asymmetric boundary conditions have been used where one end plate is rotated with the inner cylinder while the other is held fixed. The steady cellular flows consist of one or three vortices in the aspect ratio range considered. We have investigated the selection procedure for the preferred steady states experimentally and numerically and good quantitative agreement is found between the two sets of results. The sequence involves a fold in the solution surface which produces a cusp in the bifurcation set. Hopf bifurcations to three-dimensional oscillatory flow are also present and so the full bifurcation structure is revealed using the combined numerical and experimental approach in a complimentary manner. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1329906
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  • 9
    Electronic Resource
    Electronic Resource
    An experimental observation of low-dimensional dynamics in an open channel flow (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 7 (1995), S. 2364-2374 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present the results of an experimental study of dynamical phenomena in the fluid flow through a symmetric nominally two-dimensional channel expansion. The particular phenomena of interest are observed as a result of modulating the flow rate through the system. In the absence of modulation, the flow downstream of the expansion is found to be steady at low Reynolds numbers. It then loses stability to a high-dimensional dynamical state for Reynolds numbers above a critical value. However, when a small periodic modulation is added to the flow rate new low-dimensional dynamical phenomena emerge. In some parameter ranges this novel temporal behavior arises at Reynolds numbers below those at which the transition to irregular fluid flow occurs in the unforced system. In other regions of parameter space the low-dimensional dynamics suppress the irregular flow of the unforced system. Moreover, the dynamics are organized by the underlying solution structure and show evidence for a subharmonic resonance, quasiperiodicity, and homoclinicity. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.868749
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  • 10
    Electronic Resource
    Electronic Resource
    Nonlinear phenomena in hybrid Couette flow composed of planar and circular shear (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 13 (2001), S. 1583-1593 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Results are presented from an experimental investigation of a novel shear flow. Two parallel sections of planar Couette flow are connected by two semicircular sections of circular Couette flow to give a flow domain with the shape of a running track. Driving the flow with a moving inner boundary leads to centrifugal instability in the curved regions as in conventional Taylor–Couette flow. This is in contrast to the planar regions, which are linearly stable and are characterized instead by finite-amplitude instability. In the steady regime, the entire flow field is dominated by structures akin to Taylor vortices. The mechanism of exchange between a four-cell and a six-cell flow over a range of aspect ratio is qualitatively the same as for the standard Taylor–Couette problem. In the unsteady regime, the flow is characterized by various spatiotemporal modes, the selection of which is dependent on the manner of flow evolution. Quasistatic increase of the Reynolds number from zero typically results in flow with a banded spatial structure and low-dimensional dynamics, both of which are associated with instability in the semicircular regions. However, an abrupt step-like increase of Reynolds number produces a persistent flow state with strong spatial disorder and a broadband dynamical spectrum. The results of this study have implications for the conventional distinctions between the properties of open and closed flows, and suggest the possibility of intermediate flows which are worthy of investigation in their own right. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1368848
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