A5071628578- Granular flow and fluidized beds
- Fluid Dynamics and Turbulent Flows
- Fluid Dynamics and Heat Transfer
- Wind and Air Flow Studies
- Cyclone Separators and Fluid Dynamics
- Building Energy and Comfort Optimization
- Fluid Dynamics and Mixing
- Particle Dynamics in Fluid Flows
- Infection Control and Ventilation
- Biomimetic flight and propulsion mechanisms
- Combustion and flame dynamics
- Mineral Processing and Grinding
- Thermochemical Biomass Conversion Processes
- Electrohydrodynamics and Fluid Dynamics
- Evacuation and Crowd Dynamics
- Iron and Steelmaking Processes
- Fire dynamics and safety research
- Plant Surface Properties and Treatments
- Fluid Dynamics and Vibration Analysis
- Lattice Boltzmann Simulation Studies
- Advanced Chemical Physics Studies
- Minerals Flotation and Separation Techniques
- Heat Transfer Mechanisms
- Heat transfer and supercritical fluids
- Solar Energy Systems and Technologies
University at Buffalo, State University of New York
2017-2025
Iowa State University
1999-2020
University of Connecticut
2019
Virginia Tech
2009-2018
Aix-Marseille Université
2015
National Institute of Standards
1998
National Institute of Standards and Technology
1998
Pennsylvania State University
1996-1998
University of Genoa
1998
Agenzia Regionale Prevenzione e Ambiente della Regione Emilia-Romagna
1995
The flowfields in two-dimensional channels with discontinuous expansions are studied numerically to understand how the channel expansion ratio influences symmetric and nonsymmetric solutions that known occur. For improved confidence understanding, two distinct numerical techniques used. general flowfield characteristics both asymmetric regimes ascertained by a time-marching finite difference procedure. bifurcation structure of steady Navier-Stokes equations determined independently using...
The rate constants for the gas-phase reactions in silicon carbide chemical vapor deposition of methyltrichlorosilane (Ge, Y. B.; Gordon, M. S.; Battaglia, F.; Fox, R. O. J. Phys. Chem. A 2007, 111, 1462.) were calculated. Transition state theory was applied to with a well-defined transition state; canonical variational barrierless by finding generalized maximum Gibbs free energy along reaction path. Geometry optimizations carried out second-order perturbation (MP2) and cc-pVDZ basis set....
Abstract The ASME Journal of Fluids Engineering (JFE) and the Division (FED) present a special issue papers that were presented at 2024 FED Summer Meeting (FEDSM2024). conference was held Hilton Anaheim, CA from July 15-17, 2025. chair Dr. Marianne Francois (Los Alamos National Laboratory) co-chair Ning Zhang (McNeese State University).
A numerical investigation of swirling fire plumes is pursued to understand how swirl alters the plume dynamics and combustion. One example 'fire whirl' which known arise naturally during forest fires. This buoyancy-driven entrains ambient fluid as heated gases rise. Vorticity associated with a mechanism such wind shear can be concentrated by fire, creating vortex core along axis plume. The result whirling fire. current approach considers relationship between buoyancy using configuration...
Computational modeling of fluidized beds can be used to predict the operation biomass gasifiers after extensive validation with experimental data. The present work focused on validating computational simulations a bed using multifluid Eulerian–Eulerian model represent gas and solid phases as interpenetrating continua. Simulations cold-flow glass bead bed, two different drag models, were compared results for validation. validated numerical was then complete parametric study coefficient...
The kinetics for the previously proposed 114-reaction mechanism chemical vapor deposition (CVD) process that leads from methyltrichlorosilane (MTS) to silicon carbide (SiC) are examined. Among 114 reactions, 41 predicted proceed with no intervening barrier. For remaining 73 transition states and their corresponding barrier heights have been explored using second-order perturbation theory (MP2) aug-cc-pVDZ basis set. Final energies reaction barriers were obtained both MP2 aug-cc-pVTZ set...
Structures and energies of the gas-phase species produced during after various unimolecular decomposition reactions methyltrichlorosilane (MTS) with presence H2 carrier gas were determined using second-order perturbation theory (MP2). Single point obtained singles + doubles coupled cluster theory, augmented by perturbative triples, CCSD(T). Partition functions harmonic oscillator-rigid rotor approximation. A 114-reaction mechanism is proposed to account for chemistry MTS decompositions....
Acoustics and ligament formation within a self-generating self-sustaining pulsating three-stream injector are analyzed discussed due to the importance of breakup atomization jets for agricultural, chemical, energy-production industries. An extensive parametric study was carried out evaluate effects simulation numerics boundary conditions using various comparative metrics. Numerical considerations made quite significant differences in some parameters, which stress documented consistent...
Whirling fire plumes are known to increase the danger of naturally occurring or post-disaster fires. In order for a whirl exist, there must be an organized source angular momentum produce large swirl velocities as air is entrained into plume. These vorticity-driven fires occur over range length and velocity scales, significantly alter entrainment combustion dynamics. A new model derived buoyant plume that incorporates rotation neglects dissipation; result form steady state Euler equations....