SHORE-PARALLEL FLOWS IN A BARRED NEARSHORE

Evaluation of Delft3D Performance in Nearshore Flows

Sheltering the Shore via Nearshore Oblique Seabed Bars

Periodic seabed undulations, such as nearshore sandbars, are known to reflect incoming surface waves of twice the wavelength by the so-called Bragg resonance mechanism. In view of this property, longshore seabed-mounted bars were proposed long ago as a means of coastal protection against the high momentum of incident oceanic waves. Many theoretical, computational, experimental and field measure...

instability of viscoelastic fluids in nearly parallel flows: a pseudo-spectral analysis

in the present work, the effect of fluid’s elasticity was investigated on the hydrodynamic instability of blasius flow. to determine the critical reynolds number as a function of the elasticity number, a two-dimensional linear temporal stability analysis was invoked. the viscoelastic fluid is assumed to obey the walters’ b fluid model for which base flow velocity profiles were fortunately avail...

A Parallel Solver for Incompressible Fluid Flows

The Navier-Stokes equations describe a large class of fluid flows but are difficult to solve analytically because of their nonlinearity. We present in this paper a parallel solver for the 3-D Navier-Stokes equations of incompressible unsteady flows with constant coefficients, discretized by the finite difference method. We apply the prediction-projection method which transforms the Navier-Stoke...

Parallel Computation of Viscous Flows

In this study we describe parallel iterative and direct solution strategies for viscous flow computation using domain decomposition. Both stream function vorticity and primitive variable formulations are considered. The basic ideas associated with the element-by-element approach and subdomain approach can also be extended to other cell or control-volume approximate formulations. Numerical resul...