Recursive dynamic mode decomposition of a transient cylinder wake

نویسندگان

  • Bernd R. Noack
  • Witold Stankiewicz
  • Marek Morzyński
  • Peter J. Schmid
چکیده

Bernd R. Noack1,2†, Witold Stankiewicz3 Marek Morzyński3 and Peter J. Schmid4 Institut PPRIME, CNRS Université de Poitiers ENSMA, UPR 3346, Départment Fluides, Thermique, Combustion, CEAT, 43 rue de l’Aérodrome, F-86036 POITIERS Cedex, France Institut für Strömungsmechanik, Technische Universität Berlin, Hermann-Blenk-Straße 37, D-38108 Braunschweig, Germany Division of Virtual Engineering, Institute of Combustion Engines and Transport, Poznań University of Technology, Piotrowo 3 street, 60-965 Poznań, Poland Department of Mathematics, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An Exact Elastodynamic Solution for Func-tionally Graded Thick-Walled Cylinders Subjected to Dynamic Pressures

In the present paper, an exact solution for transient response of an infinitely long functionally graded thick-walled cylinder subjected to dynamic pressures at the boundary surfaces is presented for arbitrary initial conditions. The cylinder is assumed to have a plane-strain condition and the dynamic pressures are assumed to be imposed uniformly and axis...

متن کامل

The Transient Dynamics of a Beam Mounted on Spring Supports and Equipped with the Nonlinear Energy Sink

The transient dynamics of a beam mounted on springer-damper support and equipped with a nonlinear energy sink (NES) is investigated under the effects of shock loads. The equations of motion are derived using the Hamilton’s principle leading to four hybrid ordinary and partial differential equations and descritized using the Galerkin method. An adaptive Newmark method is employed for accurate an...

متن کامل

Numerical simulation of vortex-induced vibration of two long flexible circular cylinders in tandem

A quasi three-dimensional numerical model is developed to study vortex-induced vibration (VIV) of two tandem flexible circular cylinders. In this model, the whole cylinder is divided into many sections along its length. The hydrodynamics of each section are represented by the solution of the two-dimensional Navier-Stokes equations. The dynamic response of the flexible cylinder is predicted by t...

متن کامل

Passive jet control of flow around a circular cylinder

and suppressing fluctuating amplitude of the dynamic wind loads acting on the test model. With 24 suction/jet holes evenly distributed over the cylindrical test model (i.e., the N13 design of the present study), the passive jet control method was found to be able to achieve up to 33.7 % in drag reduction and 90.6 % in fluctuating wind loading suppression, in comparison with the baseline case. T...

متن کامل

Instabilities in the Wake of a Circular Cylinder with Near-wake Wire Disturbances

The secondary instabilities in the wake of a circular cylinder with near-wake wire disturbances are investigated by using threedimensional (3D) direct numerical simulations (DNS). For one wire placed asymmetrical about the wake centreline and two wires placed symmetrical about the wake centreline, the secondary instabilities are found to be Mode C and Mode A, respectively. The existence of the ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015