A5084827365- Wind and Air Flow Studies
- Meteorological Phenomena and Simulations
- Fluid Dynamics and Turbulent Flows
- Atmospheric aerosols and clouds
- Air Quality and Health Impacts
- Aeolian processes and effects
- Atomic and Subatomic Physics Research
- Internet of Things and Social Network Interactions
- Tree Root and Stability Studies
- Engineering Applied Research
- Plant Water Relations and Carbon Dynamics
- Vehicle emissions and performance
- 3D Modeling in Geospatial Applications
- Magnetic confinement fusion research
- Fusion materials and technologies
- Education, sociology, and vocational training
- Wind Energy Research and Development
- Photovoltaic System Optimization Techniques
- Species Distribution and Climate Change
- Advanced MRI Techniques and Applications
- Combustion and flame dynamics
- solar cell performance optimization
- Atmospheric and Environmental Gas Dynamics
- Icing and De-icing Technologies
- Solar Thermal and Photovoltaic Systems
University of Utah
2017-2024
When solar photovoltaic (PV) module temperatures rise during operation, commonly-installed modules experience an efficiency loss between 0.1 and 0.5% per degree above 25∘C. Thus, extensive research has aimed to reduce the operating temperature of modules. However, many cooling solutions require additional cost or equipment that precludes their implementation in utility-scale PV plants. Based on previous studies land-atmosphere interactions surface thermal heterogeneity, we hypothesize...
Abstract. Aliasing errors arise in the multiplication of partial sums, such as those encountered when numerically solving Navier–Stokes equations, and can be detrimental to accuracy a numerical solution. In this work, performance cost analysis is proposed for widely used dealiasing schemes large-eddy simulation, focusing on neutrally stratified, pressure-driven atmospheric boundary-layer flow. Specifically, exact 3∕2 rule, Fourier truncation method, high-order smoothing method are...
Abstract A Phase-contrast imaging (PCI) diagnostic provides measurements of line-integrated electron density fluctuations. Localisation along the laser beam path can be achieved with a spatial filter that selects wave-vector directions fluctuations contributing to PCI measurement and is key feature installed on TCV tokamak also similar system planned for JT-60SA. We have developed synthetic models from taking into account effect such filter. The tool based principle integrating over selected...
Abstract. Low-cost simulations providing accurate predictions of transport airborne material in urban areas, vegetative canopies, and complex terrain are demanding because the small-scale heterogeneity features influencing mean flow turbulence fields. Common models used to predict turbulent passive scalars based on Lagrangian stochastic dispersion model. The Quick Environmental Simulation (QES) tool is a low-computational-cost framework developed provide high-resolution wind concentration...
<p>The use of Numerical Weather Prediction (NWP) models is ubiquitous in our daily lives, whether to decide what wear, plan for the weekend, invest on wind turbines, strategies food security or forecast atmosphere-driven natural disasters, name a few. Currently, intrinsic most NWP assumption spatial homogeneity at kilometer sub-kilometer scales when, example, classic similarity scaling relationships are applied account unresolved near-surface momentum, heat and mass exchanges....
For simulation-intensive studies of aerial crop disease transport such as source term estimation, fast and accurate physics models are required. In crops planted in rows with sparse aisles like vineyards some orchards (so-called “row-organized canopies” or ROCs), the impact vegetation structure on flow limits validity simplest (i.e., Gaussian plumes). The present work introduces a model for Reynolds stresses near an ROC, which is implemented QES (Quick Environmental Simulation), suite...
Abstract. Three dealiasing schemes for large-eddy simulation of turbulent flows are inter-compared the canonical case pressure-drive atmospheric boundary-layer type flows. Aliasing errors arise in multiplication partial sums, such as those encountered when integrating non-linear terms Navier–Stokes equations spectral methods (Fourier or polynomial discrete series), and detrimental to accuracy numerical solution. This is special relevance using high-order schemes. In this work, a...
While advances in computation are enabling finer grid resolutions numerical weather prediction models, representing land-atmosphere exchange processes as a lower boundary condition remains challenge. This partially results of the fact that land-surface heterogeneity exists at all spatial scales and its variability does not `average' out with decreasing scales. The work here presented uses large-eddy simulations concept dispersive fluxes to quantify effect surface thermal $\sim$ 1/10th height...