An experimental study was conducted to investigate the physics underlying the oscillation cycle of high Mach number, turbulent, open cavity flows. The specific aim was to investigate how the interaction between the cavity acoustics and the shear layer dynamics is affected by increasing Mach number. In the experiments the free-stream Mach numbers tested were 2 and 5, the cavity length-to-depth r...

In the present research mixed convection flow through a copper-water nanofluid in a driven cavity in the presence of magnetic field is investigated numerically. The cavity is heated from top and cooled from bottom while its two vertical walls are insulated. The governing equations including continuity, N-S and energy equations are solved over a staggered grid system. The study is conducted for ...

3 Recently a reduced complexity model which simulates the process of delta 4 formation on geological time scales has been proposed [Seybold et al., 2007]. 5 It includes subaerial and subaqueous growth in a three dimensional frame-6 work. In this paper we apply this model to the formation of a river domi-7 nated delta and compare the model dynamics with observations of the for-8 mation of the Ba...

The local mass-transfer rate was investigated along the bottom wall of two-dimensional cavities of nominally rectangular shape, 100 mm wide, and aspect ratio (depth/width) 0.5. Experimental measurements were made by an electrochemical limiting current technique based on reduction of K3Fe(CN)6 at gold ultramicroelectrodes, each 10 mm wide and spaced 1 mm apart. Experiments were carried out in th...

A segregated finite element algorithm for the solution of the SUPG formulation of the incompressible steady-state Navier-Stokes equations for non-isothermal flow is presented in this paper. The method features equal order interpolation for all the flow variables. The SIMPLER and SIMPLEST algorithms are employed and the sets of nonsymmetric linear equations are solved by means of the preconditio...

ffects of pressure ratio and rotational speed on the leakage flow nd cavity pressure characteristics of the rotating staggered labyinth seal were investigated by means of experimental measureents and numerical simulations. The rotating seal test rig with urbine flowmeter and pressure measuring instruments was utiized to investigate the leakage flow of the staggered labyrinth eal at eight pressu...

The problem of natural convection in a cavity of small aspect ratio with differentially heated end walls is considered. It is shown by use of matched asymptotic expansions that the flow consists of two distinct regimes : a parallel flow in the core region and a second, non-parallel flow near the ends of the cavity. A solution valid at all orders in the aspect ratio A is found for the core regio...