HIGH-ORDER SIMULATION OF THE FLOW INSTABILITY OVER A NON-CIRCULAR ă STRUCTURE - Laboratoire Jean-Alexandre Dieudonné Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

HIGH-ORDER SIMULATION OF THE FLOW INSTABILITY OVER A NON-CIRCULAR ă STRUCTURE

Résumé

Bluff bodies can be prone to well-known self-excited instability such as ă galloping. Opposite to classical and well documented Vortex Induced ă Vibrations (VIV), oscillation amplitude is not bounded in such a way ă galloping-like instability can alter the integrity of the structure on ă short term. Although stability criteria exist in the literature [1], ă there is a real lack considering the cause and the way to inhibit such ă instability. ă It is consequently proposed in this paper to investigate the flow over ă the classical `non-circular' structure, i.e the square box body, by ă means of advanced Spectral Large Eddy Simulation (LES) solver, [16], ă [17] & [18]. The main objectives of this numerical analysis will be ă to provide an accurate solution to underline the possible mechanisms ă that trigger the instability as well as a base solution for future wake ă stability & control analysis, [6].
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Dates et versions

hal-01464723 , version 1 (10-02-2017)

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  • HAL Id : hal-01464723 , version 1

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Matthieu Minguez, Philippe Meliga, Eric Serre. HIGH-ORDER SIMULATION OF THE FLOW INSTABILITY OVER A NON-CIRCULAR ă STRUCTURE. PROCEEDINGS OF THE ASME 32ND INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE ă AND ARCTIC ENGINEERING - 2013 - VOL 7, 2013, Unknown, Unknown Region. ⟨hal-01464723⟩
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