1–20 von 47 Ergebnissen
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    Kelvin-Helmholtz wave generation beneath hovercraft skirts

    Sullivan, P.A. / Walsh, C. / Hinchey, M.J. | Tema Archiv | 1993
    selbsangeregten Schwingungen resultieren. Unter Anwendung der klassischen Kelvin-Helmholtz-Theorie untersuchen die Verfasser die dynamischen Erscheinungen ...

    Numerical simulation of Kelvin-Helmholtz instability via direct- and large-eddy simulation

    Lund, T.S. / Werne, J.A. | Tema Archiv | 2004
    Kelvin-Helmholtz (K-H) instability in a stably stratified background is studied numerically in order to support the AirBorne Laser (ABL ...
    Schlagwörter: Kelvin-Helmholtz-Instabilität

    Investigation of Kelvin-Helmholtz induced separation bubble flapping via time-resolved and scanning PIV measurements

    Burgmann, S. / Schröder, W. | Tema Archiv | 2007
    layer to reattach is governed by Kelvin-Helmholtz instabilities. Large scale vortices are formed due to this mechanism at the downstream end of ...
    Schlagwörter: Helmholtz-Gleichung , Kelvin-Helmholtz-Instabilität

    NEILLSBat - Nanostructured electrodes and ionic liquid electrolytes for ultra high energy density lithium sulphur batteries : Schlussbericht : Laufzeit des Vorhabens: 01.08.2017 bis 31.01.2021

    Freier Zugriff
    Passerini, Stefano / Varzi, Alberto / Helmholtz-Institut Ulm für Elektrochemische Energiespeicherung | TIBKAT | 2021
    Verlag: Karlsruhe Institut für Technologie - Helmholtz Institut Ulm , Ulm

      NEILLSBat - Nanostructured electrodes and ionic liquid electrolytes for ultra high energy density lithium sulphur batteries : Schlussbericht : Laufzeit des Vorhabens: 01.08.2017 bis 31.01.2021

      Passerini, Stefano / Varzi, Alberto / Helmholtz-Institut Ulm für Elektrochemische Energiespeicherung | TIBKAT | 2021
      Verlag: Karlsruhe Institut für Technologie - Helmholtz Institut Ulm , Ulm

    Methods to control low frequency pulsation in open-jet wind tunnel

    Wang, Yigng / Yang, Zhigng / Li, Qilang | Tema Archiv | 2012
    tunnel. On the basis of the method, two new control methods that are based on a Helmholtz resonator and addition pipes connected with airline of ...
    Schlagwörter: Helmholtz-Gleichung , Helmholtz-Resonator

    Noise reductions for low speed diesel engines and application of noise measurement using spherical beamforming technique

    Kajihara, Shuhei / Takashima, Kazuhiro / Hoejgaard, Jens et al. | Tema Archiv | 2010
    in the engine room. Secondly, we report some samples of the countermeasures for noise reduction including the application of Helmholtz ...
    Schlagwörter: Helmholtz-Gleichung , Helmholtz-Resonator

    Liquid layer combustion instabilities in paraffin-based hybrid rocket fuels

    Petrarolo, Anna / Universität Stuttgart / Institut für Raumfahrtantriebe, Hardthausen-Lampoldshausen | TIBKAT | 2020
    Schlagwörter: Kelvin-Helmholtz-Instabilität

    Analysis of transaxle noise using HELS-based near-field acoustic holography

    Moondra, Manmohan / Beniwal, Ravi / Wu, Sean | Tema Archiv | 2006
    This paper describes the analyses of automobile transaxle noise under both stationary and non-stationary conditions using the Helmholtz ...
    Schlagwörter: Helmholtz-Gleichung

    A Comparison Between PSRK and GERG-2004 Equation of State for Simulation of Non-Isothermal Compressible Natural Gases Mixed with Hydrogen in Pipelines

    Uilhoorn, Frits E. | Tema Archiv | 2013
    In this work, the GERG-2004 equation of state based on a multi-fluid approximation explicit in the reduced Helmholtz energy is compared ...
    Schlagwörter: Helmholtz-Energie

    The effect of underwater noise radiation on ship vibration

    Wilken, Marc / Maess, Matthias / Junge, Michael et al. | Tema Archiv | 2007
    been developed to solve the Helmholtz equation, which allows the computation of the sound pressure field in the water due to a structural ...
    Schlagwörter: Helmholtz-Gleichung

    Dynamics of low-viscosity oils retained by rigid and flexible barriers

    Amini, Azin / Bollaert, Erik / Boillat, Jean-Louis et al. | Tema Archiv | 2008
    Schlagwörter: Kelvin-Helmholtz-Instabilität

    Entschärfung des Zielkonfliktes zwischen wirksamer Schalldämpfung und niedrigem Abgasgegendruck

    Diez, R. / Herbig, M. / Münzing, S. | Tema Archiv | 2000
    : 2001), das einen Helmholtz-Resonator mit einer Abgasklappe kombiniert. Im Kern besteht das System aus zwei parallelen Schalldämpfern, die ...
    Schlagwörter: Helmholtz-Gleichung

    Experimental investigation of some aspects of insect-like flapping flight aerodynamics for application to micro air vehicles

    Ansari, Salman A. / Phillipps, Nathan / Stabler, Graham et al. | Tema Archiv | 2009
    numbers is studied and the presence of Kelvin-Helmholtz instability observed at the higher Reynolds number in computational fluid dynamics ...
    Schlagwörter: Helmholtz-Gleichung

    Increase in transmission loss of single panels by addition of mass inclusions to a poro-elastic layer: experimental investigation

    Kidner, M.R.F. / Fuller, C.R. / Gardner, B. | Tema Archiv | 2006
    Schlagwörter: Helmholtz-Gleichung

    Influence of ballast on wave steepening in tunnels

    Vardy, A.E. / Brown, J.M.B. | Tema Archiv | 2000
    ballast is linked to a series of Helmholtz resonators, yielding analytical relationships whose characteristics are explored. Then the resonators ...
    Schlagwörter: Helmholtz-Resonator

    Vibro-acoustic simulations of ships by coupled fast BE-FE approaches

    Brunner, Dominik / Junge, Michael / Wilken, Marc et al. | Tema Archiv | 2009
    comparing the solutions of the Helmholtz and the Laplace equation. The ship itself is modeled with the finite element method. A binary interface to ...
    Schlagwörter: Helmholtz-Gleichung

    Fast boundary element methods for large-scale simulations of the vibro-acoustic behavior of ship-like structures

    Brunner, Dominik | Tema Archiv | 2009
    betrachten. Um auch die Schallabstrahlung ins kompressible Wasser zu berücksichtigen, wird hierbei die Helmholtz Gleichung eingesetzt. Die ...
    Schlagwörter: Helmholtz-Gleichung

    Untersuchungen zur Dynamik laminarer Ablöseblasen mit der zeitauflösenden Particle Image Velocimetry

    Hain, Rainer | Tema Archiv | 2008
    ausgerichteten Lichtschnitt durchgeführt. Durch die flächenhaften zeitaufgelösten Messungen können die Kelvin-Helmholtz Instabilitäten aufgelöst und als ...
    Schlagwörter: Kelvin-Helmholtz-Instabilität

    Time-resolved PIV investigations on the laminar-turbulent transition over laminar separation bubbles

    Hain, Rainer / Kähler, Christian J. / Radespiel, Rolf | Tema Archiv | 2009
    the time-resolved Particle Image Velocimetry in the past. The development of vortices which arise from Kelvin-Helmholtz instabilities is ...
    Schlagwörter: Helmholtz-Gleichung

    Numerical modelling of sound transmission loss of interior aircraft lining elements

    Von Estorff, Otto / Wandel, Martin | Tema Archiv | 2003
    Schlagwörter: Helmholtz-Gleichung