Abstract: The hydraulics of strait and sill flow with friction is examined using a reduced gravity model. It is shown that friction moves the critical (or control) point from the sill to a location downstream. If the strait has ...

Abstract: Laboratory studies of the effects of wall separation on a hydraulic jump in a rotating channel of rectangular cross section are described. Separation is induced by increasing the rotation rate while maintaining a constant ...

Abstract: Nonlinear meandering and ?pinching off? process are investigated by solving the path equationAs shown by Pratt and Stern, this dimensioned equation determines the center line latitude l of a slowly-varying, equivalent ...

Abstract: The concept of hydraulic control by a sill is discussed in terms of its consequences for the upstream flow. Based on observations of the upstream flow alone. ?control? is shown to be distinguishable from ?noncontrol? only ...

Abstract: Two problems regarding the use of rotating hydraulic channel flow models are addressed. The first concerns the difficulties encountered when trying to identify the ?potential? depth for a flow of uniform (but nonzero) ...

Abstract: The formation and detachment of quasi-geostrophic eddies in a 1½ layer jet is studied using a piecewise uniform potential vorticity model. A vorticity front separates the two pieces, and thus the jet has cusplike character. ...

Abstract: Rotating two-layer exchange flow over a sill in a strait separating two relatively deep and wide basins is analyzed. Upstream of the sill in the deep upstream basin, the infinitely deep dense lower layer is assumed to be ...

Abstract: Hood Canal, a long fjord in Washington State, has strong tides but limited deep-water renewal landward of a complex constriction. Tide-resolving hydrographic and velocity observations at the constriction, with a depth-cycling ...

Abstract: Acoustic Doppler Current Profiler velocity measurements in the Bab al Mandab during the period June 1995?March 1996 are used to assess the hydraulic character of the exchange flow. The strait is 150 km long and contains ...

Abstract: Kinematic models predict that a coherent structure, such as a jet or an eddy, in an unsteady flow can exchange fluid with its surroundings. The authors consider the significance of this effect for a fully nonlinear, ...