Although phase slippage across an orifice in its purest form takes place by individual phase increments by 2n, there are many instances of flow in which the energy dissipation occurs by lumps involving much larger phase difference changes. Such events, the observation of which has been reported first by Sabo and Zimmermann, reduce the flow through the micro-aperture of two-hole resonators to re...

Bend existence induces changes in the flow pattern, velocity profiles and water surface. In the present study, based on experimental data, first three-dimensional computational fluid dynamic (CFD) model is simulated by using Fluent two-phase (water + air) as the free surface and the volume of fluid method, to predict the two significant variables (velocity and channel bed pressure) in 90º sharp...

A conservative hyperbolic model for compressible two-phase two-fluid model is studied and numerical methods for its approximate solution are proposed. The derivation of the governing equations of the model is based on the principles of extended thermodynamics. The field equations form a hyperbolic system of balance equations in conservative form, which guarantees the well-posedness of the initi...

We provide a parametric modelling approach suitable for various kinds of hierarchical networks based on random geometric graphs. In these networks, we have two kinds of components, so-called high-level components (HLC) and low-level components (LLC). Each HLC is associated with a serving zone and all LLC within this area are connected to the corresponding HLC. So-called sparse LLC networks, whe...

In this paper, we introduce a new generalization of the classical planar maximum coverage location problem (PMCLP) in which demand zones and service zone of each facility are represented by two-dimensional spatial objects such as circles, polygons, etc. In addition, we allow partial coverage in the foregoing generalization, i.e., covering only part of a demand zone is allowed and the coverage a...