Streamwise oscillations of a cylinder beneath a free surface: Free surface effects on vortex formation modes
نویسندگان
چکیده
منابع مشابه
Streamwise oscillations of a cylinder beneath a free surface: Free surface effects on fluid forces
A two-dimensional free surface flow past a circular cylinder forced to performstreamwise oscillations in the presence of an oncoming uniform flow is investigated at a Reynolds number of R = 200 and fixed displacement amplitude, A = 0.13, for the forcing frequency-to-natural shedding frequency ratios, f/f0 = 1.5, 2.5, 3.5. This study is based on numerical solutions of the special integral form o...
متن کاملBoundary layer flow beneath a uniform free stream permeable continuous moving surface in a nanofluid
The main purpose of this paper is to introduce a boundary layer analysis for the fluid flow andheat transfer characteristics of an incompressible nanofluid flowing over a permeable isothermalsurface moving continuously. The resulting system of non-linear ordinary differential equations issolved numerically using the fifth–order Runge–Kutta method with shooting techniques usingMatlab and Maple s...
متن کاملMotion of a Yawed Supercavitating Wedge Beneath a Free Surface
The problem that is studied concerns a yawed wedge under a free surface, moving at a uniform speed. The model involves a trailing cavity whose boundary is a dividing streamline through the vertex of the wedge. The cavity closure mechanism is described according to the Tulin– Terent’ev single-spiral-vortex model. A closed-form solution to the governing nonlinear boundaryvalue problem is found by...
متن کاملMechanism Analysis of Free-Surface Vortex Formation during Steel Teeming
To develop an effective technology to prevent vortex forming in ladles, the mechanism underlying vortex formation during steel teeming must be studied. For simulations using the numerical simulation software Fluent, a geometric model of the ladle was generated, and initially water teeming in the ladle was simulated for different initial tangential velocities. The results obtained help to verify...
متن کاملSymmetry breaking in free-surface cylinder flows
By J. M. LOPEZ, F. MARQUES, A. H. HIRSA AND R. MIRAGHAIE Department of Mathematics and Statistics, Arizona State University, Tempe, AZ 85287, USA Departament de Fı́sica Aplicada, Universitat Politècnica de Catalunya, Jordi Girona Salgado s/n, Mòdul B4 Campus Nord, 08034 Barcelona, Spain Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Computational and Applied Mathematics
سال: 2011
ISSN: 0377-0427
DOI: 10.1016/j.cam.2010.09.018