Experiments on Drag Coefficients and Response of Wind Waves to Periodically Fluctuating Winds

Modeling Satellite Drag Coefficients With Response Surfaces

Consider a non-spherical elephant: computational fluid dynamics simulations of heat transfer coefficients and drag verified using wind tunnel experiments.

Animal momentum and heat transfer analysis has historically used direct animal measurements or approximations to calculate drag and heat transfer coefficients. Research can now use modern 3D rendering and computational fluid dynamics software to simulate animal-fluid interactions. Key questions are the level of agreement between simulations and experiments and how superior they are to classical...

Observed drag coefficients in high winds in the near offshore of the South China Sea

This paper investigates the relationships between friction velocity, 10m drag coefficient, and 10m wind speed using data collected at two offshore observation towers (one over the sea and the other on an island) from seven typhoon episodes in the South China Sea from 2008 to 2014. The two towers were placed in areas with different water depths along a shore-normal line. The depth of water at th...

optimization of an airfoil used in the tip of wind turbine blades for maximizing its lift to drag coefficients ratio

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Drag forces on vegetation due to waves and currents

The research focused on the variation trend of drag coefficient with Keulegan-Carpenter number in vegetation mimics in pure wave and combined current-wave flow conditions. Experiments were carried out in the Environmental Fluid Mechanics Laboratory at Delft university of Technology. Completion of this thesis was only made possible with the help of many people who graciously shared their time, e...