Sloshing and slamming oscillations in a collapsible channel flow

نویسندگان

  • PETER S. STEWART
  • MATTHIAS HEIL
  • SARAH L. WATERS
  • OLIVER E. JENSEN
چکیده

PETER S. STEWART, MATTHIAS HEIL, SARAH L. WATERS AND OLIVER E. JENSEN† Department of Engineering Sciences and Applied Mathematics, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA School of Mathematics, University of Manchester, Oxford Road, Manchester M13 9PL, UK Oxford Centre for Industrial and Applied Mathematics, University of Oxford, 24-29 St Giles’, Oxford OX1 3LB, UK School of Mathematical Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK

برای دانلود رایگان 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

High-frequency self-excited oscillations in a collapsible-channel flow

High-Reynolds-number asymptotics and numerical simulations are used to describe twodimensional, unsteady, pressure-driven flow in a finite-length channel, one wall of which contains a section of membrane under longitudinal tension. Asymptotic predictions of stability boundaries for small-amplitude, high-frequency, self-excited oscillations are derived in the limit of large membrane tension. The...

متن کامل

Challenges in Hydrodynamics of Ships and Ocean Structures

Violent fluid motions, high speed marine vehicles and Computational Fluid Dynamics (CFD) are selected as main topics. Violent fluid motions deal with green water on deck, sloshing and slamming. Slamming involves many physical effects. When analyzing slamming, one must always have the structural reaction in mind. This necessitates that hydroelastic effects are considered. Many hydrodynamic pheno...

متن کامل

Flutter in a quasi-one-dimensional model of a collapsible channel.

The effects of wall inertia on instabilities in a collapsible channel with a long finite-length flexible wall containing a high Reynolds number flow of incompressible fluid are studied. Using the ideas of interactive boundary layer theory, the system is described by a one-dimensional model that couples inviscid flow outside the boundary layers formed on the channel walls with the deformation of...

متن کامل

How rapidly oscillating collapsible tubes extract energy from a viscous mean flow

We present a combined theoretical and computational analysis of three-dimensional unsteady finite-Reynolds-number flows in collapsible tubes whose walls perform prescribed high-frequency oscillations which resemble those typically observed in experiments with a Starling resistor. Following an analysis of the flow fields, we investigate the system’s overall energy budget and establish the critic...

متن کامل

Turbulent Drag Reduction by Spanwise Wall Oscillations

The objective of this paper is to examine the effectiveness of wall oscillation as a control scheme of drag reduction. Two flow configurations are considered: constant flow rate and constant mean pressure gradient. The Navier-Stokes equations are solved using Fourier-Chebyshev spectral methods and the oscillation in sinusoidal form is enforced on the walls through boundary conditions for the sp...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010