- Fluid Dynamics and Heat Transfer
- Combustion and flame dynamics
- Advanced Combustion Engine Technologies
- Plant Surface Properties and Treatments
- Electrohydrodynamics and Fluid Dynamics
- Fluid Dynamics and Turbulent Flows
- Cyclone Separators and Fluid Dynamics
- Rocket and propulsion systems research
- Particle Dynamics in Fluid Flows
- Wind Energy Research and Development
- Fluid Dynamics and Vibration Analysis
- Aerosol Filtration and Electrostatic Precipitation
- Fluid Dynamics Simulations and Interactions
- Model Reduction and Neural Networks
- Wind and Air Flow Studies
- Wave and Wind Energy Systems
- Heat transfer and supercritical fluids
- Lattice Boltzmann Simulation Studies
- Computational Fluid Dynamics and Aerodynamics
- Phase Equilibria and Thermodynamics
- Cavitation Phenomena in Pumps
- Ethics in Business and Education
- Combustion and Detonation Processes
- Computer Graphics and Visualization Techniques
- Hydraulic and Pneumatic Systems
University of Massachusetts Amherst
2015-2024
Sandia National Laboratories California
2022
Skåne University Hospital
2021
MathWorks (United Kingdom)
2020
MathWorks (United States)
2020
Apple (United States)
2020
Amherst College
2020
Office of Scientific and Technical Information
2015
National Technical Information Service
2015
University of Illinois Urbana-Champaign
2011
The generation of primary aerosols from biomass hinders the production biofuels by pyrolysis, intensifies environmental impact forest fires, and exacerbates health implications associated with cigarette smoking. High speed photography is utilized to elucidate ejection mechanism aerosol particles thermally decomposing cellulose at timescale milliseconds. Fluid modeling, based on first principles, experimental measurement phenomenon supports proposed interfacial gas bubble collapse forming a...
A numerical model that treats liquid and vapor as a continuum has been constructed for predicting small-scale, high-speed, cavitating nozzle flow. In order to extremely high pressures, the compressibility of both phases included in scheme, third-order shock-capturing technique was applied continuity equation capture sharp jumps density. addition, boundary-fitted mesh used treat different geometries. The scheme run with very upstream pressures liquid-to-vapor density ratio 10,000:1. results...
Abstract The design and financing of commercial‐scale floating offshore wind projects require a better understanding how power generation differs between newer turbines well‐established fixed‐bottom turbines. In turbines, platform mobility causes additional rotor motion that can change the time‐averaged generation. this work, OpenFAST simulations examine generated by National Renewable Energy Laboratory's 5‐MW reference turbine mounted on OC3‐UMaine spar OC4‐DeepCWind semisubmersible...
The internal details of fuel injectors have a profound impact on the emissions from gasoline direct injection engines. However, injector design features is not currently understood, due to difficulty in observing and modeling flows. Gasoline flows involve moving geometry, flash boiling, high levels turbulent two-phase mixing. In order better simulate these injectors, five different approaches been employed study engine combustion network Spray G injector. These simulation results compared...
This work presents an implementation and evaluation of the Σ-Υ atomization model for Diesel spray CFD simulations. The is based on Eulerian representation dispersion by means a single-fluid variable density turbulent flow within RANS framework. locally homogeneous approach has been applied in order to develop vaporization state relationships. A finite-volume solver equations created using OpenFOAM open-source C++ library. Model predictions have compared experimental data from free sprays...
Hydrodynamic loads on the platforms of floating offshore wind turbines are often predicted with computer-aided engineering tools that employ Morison’s equation and/or potential-flow theory. This work compares results from one such tool, FAST, National Renewable Energy Laboratory’s turbine and high-fidelity computational fluid dynamics (CFD) package, OpenFOAM, for OC4-DeepCwind semi-submersible analyzed in International Agency Wind Task 30 project. Load predictions HydroDyn, hydrodynamics...