My research interests include the areas of numerical methods for hyperbolic conservation laws, shallow water flows, fluid dynamics, flows in porous media and multi-phase flows. Here I explain the contributions I have made to numerical analysis, in collaboration with Professor Smadar Karni. However, I also enjoy working on semiclassical analysis, which has been a parallel project in my doctoral ...

a r t i c l e i n f o a b s t r a c t A novel non-overlapping concept is augmented to the Hybrid Particle Level Set (HPLS) method to improve its accuracy and suitability for the modelling of multi-phase fluid flows. The concept addresses shortcomings in the reseeding algorithm, which maintains resolution of the surface at runtime. These shortcomings result in the misplacement of newly seeded pa...

Subcooled flow boiling in multi-microchannels can be used as an efficient thermal management approach in compact electrical devices. Highly subcooled flow boiling of HFE 7100 is studied in two microchannel heat sinks to choose a proper numerical model for simulating boiling flows in microchannels. Results of five different numerical models, including Volume of Fluid (VOF), Eulerian boiling, Eul...

During its near-ground hovering phase a Short Take-Off and Vertical Landing (STOVL) aircraft creates a complex three-dimensional flow field between jet streams, the airframe surface and the ground. A proper understanding and numerical prediction of this flow is important in the design of such aircraft. In this paper an experimental facility, used to gather validation data suitable for testing C...

The noninvasive investigation of flows, where media of different optical density participate, is often not possible. A measurement through dynamic water-air surfaces will result in higher measurement uncertainties or they will hinder any measurement at all. To overcome this issue we make use of adaptive optics (AO). Dependent on the measurement system, an adaptive correction of the illumination...

A new homogenization approach for the simulation of multi-phase flows in heterogeneous porous media is presented. It based on lattice Boltzmann method and combines grayscale with multi-component Shan-Chen method. Thus, it mimics fluid-fluid solid-fluid interactions also within pores that are smaller than numerical discretization. The model successfully tested a broad variety single- two-phase f...

An incompressible multi-phase SPH method is proposed. In this method, a fractional time-step method is introduced to enforce both the zero-density-variation condition and the velocity-divergence-free condition at each full time step. To obtain sharp density and viscosity discontinuities in an incompressible multi-phase flow a new multi-phase projection formulation, in which the discretized grad...