SAM: Recent submissions

Now showing items 1-7 of 3917

    • Roughness-induced transition by quasi-resonance of a varicose global mode 
      BUCCI, M. A.; PUCKERT, D. K.; ANDRIANO, C.; LOISEAU, Jean-Christophe; CHERUBINI, S.; ROBINET, Jean-Christophe; RIST, U. (Cambridge University Press, 2017)
      The onset of unsteadiness in a boundary-layer flow past a cylindrical roughness element is investigated for three flow configurations at subcritical Reynolds numbers, both experimentally and numerically. On the one hand, ...
    • Influence of the Shape on the Roughness-Induced Transition 
      LOISEAU, Jean-Christophe; CHERUBINI, Stefania; ROBINET, Jean-Christophe; LERICHE, E. (Springer, 2015)
      lobal instability analysis of the three-dimensional flow past two rough- ness elements of different shape, namely a cylinder and a bump, is presented. In both cases, the eigenspectrum is made of modes characterised by a ...
    • Closed-loop control of wavepackets in a free shear-flow 
      SASAKI, Kenzo; TISSOT, Gilles; CAVALIERI, André V.; SILVESTRE, Flavio J.; JORDAN, Peter; BIAU, Damien (American Institute of Aeronautics and Astronautics, 2016)
      This study aims at the attenuation of the unsteady fluctuations along a two-dimensional mixing layer which may be considered as a prototypical problem for the evaluation of es- timation and control techniques, and also ...
    • Shear waves elastography for assessment of human Achilles tendon's biomechanical properties: an experimental study 
      HAEN, Thomas-Xavier; ROUX, Anthony; SOUBEYRAND, M.; LAPORTE, Sébastien (ELSEVIER, 2017)
      Introduction: Achilles tendon is the most frequently ruptured tendon, but its optimal treatment is increasingly controversial. The mechanical properties of the healing tendon should be studied further. Shear waves elastography ...
    • A Priori Tests of RANS Models for Turbulent Channel Flows of a Dense Gas 
      SCIACOVELLI, Luca; CINNELLA, Paola; GLOERFELT, Xavier (Springer, 2018)
      Dense gas effects, encountered in many engineering applications, lead to unconventional variations of the thermodynamic and transport properties in the supersonic flow regime, which in turn are responsible for considerable ...
    • A framework for closed-loop flow control using the parabolized stability equations 
      SASAKI, Kenzo; CAVALIERI, André V.; SILVESTRE, Flavio J.; JORDAN, Peter; TISSOT, Gilles; BIAU, Damien (American Institute of Aeronautics and Astronautics, 2017)
      We develop a reduced-order-model framework using the parabolized stability equations and identification techniques for the closed-loop control of unsteady fluctuations along fluidic systems. These models had been ...
    • Constrained sparse Galerkin regression 
      LOISEAU, Jean-Christophe; BRUNTON, Steven L. (Cambridge University Press, 2018)
      The sparse identification of nonlinear dynamics (SINDy) is a recently proposed data-driven modelling framework that uses sparse regression techniques to identify nonlinear low-order models. With the goal of low-order models ...