A5023254158- Wind and Air Flow Studies
- Wind Energy Research and Development
- Aerodynamics and Fluid Dynamics Research
- Fluid Dynamics and Vibration Analysis
- Vehicle emissions and performance
- Solar Radiation and Photovoltaics
- Atmospheric chemistry and aerosols
- Icing and De-icing Technologies
- Computational Fluid Dynamics and Aerodynamics
- Wind Turbine Control Systems
- Aerodynamics and Acoustics in Jet Flows
- Atmospheric and Environmental Gas Dynamics
- Air Quality and Health Impacts
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Hybrid Renewable Energy Systems
- Carbon Dioxide Capture Technologies
- Aerospace Engineering and Energy Systems
University of Illinois System
2025
University of Delaware
2017-2023
Tianjin University of Commerce
2018
Beihang University
2011
Abstract As wind farms grow in number and size worldwide, it is important that their potential impacts on the environment are studied understood. The Fitch parameterization implemented Weather Research Forecasting (WRF) Model since version 3.3 a widely used tool today to study such impacts. We identified two issues related way added turbulent kinetic energy (TKE) generated by farm treated WRF with parameterization. first issue simple “bug” code, second excessive value of coefficient, called...
Abstract Large‐eddy simulation (LES) has been used previously to study the effect of either configuration or atmospheric stability on power generated by large wind farms. This is first consider both and farm simultaneously methodically with LES. Two prevailing directions, two layouts (turbines aligned versus staggered respect wind) three stabilities (neutral moderately unstable stable) were evaluated. Compared neutral conditions, conditions led reduced wake losses in one configuration,...
Wind energy has been growing steadily in the U.S. and worldwide past decades. As wind farms are projected to increase size number, however, concerns rising about possible undesirable effects of turbines near Earth's surface. The literature is highly divided what these could be, including warming, cooling, both, or neither. Only one mechanism, widely accepted (but never tested) explain how affect lower boundary layer, namely that turbulence generated turbine wakes enhances vertical mixing...
Abstract Large‐eddy simulation (LES) has been adopted to study wind turbine wakes because it can capture fine‐scale details of turbulent flows and interactions with turbines. Here, we use the LES version Weather Research Forecasting (WRF) model an actuator disk gain insights on several wake effects that have traditionally difficult measure. The first finding is a “dual nature,” meaning speed deficit behaves differently from added kinetic energy (TKE) two are not co‐located in space. For...
Abstract Wind turbines generate wakes, which can potentially influence the local microclimate near ground. To verify and quantify such effects, Vertical Enhanced Mixing (VERTEX) field campaign was conducted in late summer 2016 to measure near-surface turbulent fluxes, wind speed, temperature, moisture under outside of wake an operational turbine Lewes, Delaware. We found that, presence wakes from a single turbine, friction velocity, kinetic energy, speed were reduced ground wake, while heat...
Numerical simulation for the two models in cross‐wind was carried out this paper. The three‐dimensional compressible Reynolds‐averaged Navier‐Stokes equations(RANS), combined with standard k‐ε turbulence model, were solved on multi‐block hybrid grids by second order upwind finite volume technique. impact of fairing aerodynamic characteristics train analyzed. It is shown that, flow separates and a strong vortex generated, pressure upper middle car decreases dramatically, which leads to large...