With the increase of computer power and advancement of modeling software, the study of turbulent gas-particle flow problems using computational fluid dynamics (CFD) techniques is gradually becoming attractive in the engineering field. Two basic CFD approaches are used to simulate the gas-particle flow, i.e. the Eulerian-Lagrangian model and the EulerianEulerian model. The aim of this thesis is ...

With traditional natural gas being one of the top options for heating in United States and present threat climate change, there is a demand an alternative clean fuel source. A Renewable Natural Gas Implementation Decision-Making Conceptual Model was created to provide framework considering feasibility renewable (RNG) projects applied New Jersey, specifically investigating landfills wastewater t...

We present a first random number generator (RNG) which simultaneously uses independent spatial and temporal quantum randomness contained in an optical system. Availability of the two independent sources of entropy makes the RNG resilient to hardware failure and signal injection attacks. We show that the deviation from randomness of the generated numbers can be estimated quickly from simple meas...

Prototype-based clustering algorithms such as the Self Organizing Map (SOM) or Neural Gas (NG) offer powerful tools for automated data inspection. The distribution of prototypes, however, does not coincide with the underlying data distribution and magnification control is necessary to obtain information theoretic optimum maps. Recently, several extensions of SOM and NG to general non-vectorial ...

This study considers the self-consistent formation and dynamics of electron clouds interacting with a background neutral gas through elastic inelastic (ionization) collisions in coaxial geometries similar to gyrotron guns. These remain axially trapped as result crossed magnetic field lines electric equipotential creating potential wells those used Penning traps. Contrary standard traps, this st...

The study of aerosol dispersion in indoor environments is essential to understanding and mitigating airborne virus transmission, such as SARS-CoV-2. Computational Fluid Dynamics (CFD) has emerged a valuable tool for investigating dispersion, providing an alternative costly experimental methods. In this study, we investigated the performance four (4) Reynolds-averaged Navier-Stokes (RANS) turbul...

This paper reviews the design optimization of wind turbine blades through investigating the design methods and analyzing the performance of the blades. The current research work in this area include wind turbine blade geometric design and optimization, aerodynamics analysis, wind turbine blade structural design and dynamics analysis. Blade geometric design addresses the design parameters, inclu...

The Yakhot and Orszag RNG theory of turbulence has generated a number of scaling law constants in reasonable quantitative agreement with experiments. The theory itself is highly mathematical, and its assumptions and approximations are not easily appreciated, particularly since several rather unconventional artifices are employed. The present paper reviews the RNG theory and recasts it in more c...