Large eddy simulation and a discrete element method are applied to study the flow, particle dispersion and agglomeration in a horizontal channel. The particle-particle interaction model is based on the Hertz-Mindlin approach with Johnson-KendallRoberts cohesion to allow the simulation of Van der Waals forces in a dry air flow. The influence of different particle surface energies on agglomeratio...

In the frame of a three-layer, quasi-geostrophic analytical model of an f -plane geophysical flow, the Lagrangian advection induced by the interaction of a monopole vortex with an isolated topographic feature is addressed. Two different cases when the monopole is located either within the upper or the middle layer are of our interest. In the bottom layer, there is a delta-function topographic f...

P. S. Hrnjak, S. P. Vanka A combined experimental and computational study will be undertaken to develop better understanding and control of dispersed two-phase flow in headers. First, we will examine misty flow regimes in headers using the refrigeration setup from Project 96 for which the liquid and vapor phase flow rates can be individually measured from five tubes distributed along the length...

P. S. Hrnjak, S. P. Vanka A combined experimental and computational study will be undertaken to develop better understanding and control of dispersed two-phase flow in headers. First, we will examine misty flow regimes in headers using the refrigeration setup from Project 96 for which the liquid and vapor phase flow rates can be individually measured from five tubes distributed along the length...

4 Q B A multi-faceted instrumentation approach is described which has played a significant role in ob*ing fundamental data for two-phase flow model development. This experimental work supports the development of a three-dimensional, two-fluid, four field computational analysis capability. The god of this development is to utilize mechanistic models and fundamental understanding rather than rely...

A model of two-phase flow involving non-Newtonian fluid is described to be more reliable present the that involves industrial applications due special characteristics in its behavior. Many models were discovered last few decades but captured most attention Williamson model. The consideration existing particles (two-phase fluid) will make interesting investigate. Hence, this paper aimed explore ...

The numerical simulation of solid-gas two-phase flow is an important tool in the prediction of its flow behavior. Predicting the axial pressure profile is one of the major difficulties in modeling of solid-gas two-phase flow. A model using a Particle Based Approach (PBA) is developed to accurately predict the axial pressure profile in a vertical annular tube. The simulation model accounts for t...

High-velocity free-surface flows are complex two-phase flows and limited information is available about the interactions between air and water for void fractions of about 50%. Herein a detailed experimental study was conducted in the intermediate flow region ( C ∼ 50%) on a stepped spillway and the microscopic air–water flow characteristics were investigated. The results showed differences in w...