[HTML][HTML] Drag coefficient prediction of complex-shaped snow particles falling in air beyond the Stokes regime

G Tagliavini, M McCorquodale, C Westbrook… - International Journal of …, 2021 - Elsevier
This study considers complex ice particles falling in the atmosphere: predicting the drag of
such particles is important for developing of climate models parameterizations. A Delayed …

Effect of porosity on the kinematics of free-falling porous disks

W Zhang, D Bi, Y Wei - Physics of Fluids, 2023 - pubs.aip.org
The effects of porosity on the kinematics of porous disks are investigated experimentally. A
new falling motion is identified, namely, spiral irregular motion, which is characterized by the …

Falling styles of perforated disks

W Zhang, D Bi, Y Wei - International Journal of Multiphase Flow, 2023 - Elsevier
We experimentally investigate the dynamics of thin perforated disks freely falling under
gravity in still water. With a stereo vision system, three-dimensional paths are reconstructed …

Accurate predictions of chaotic motion of a free fall disk

T Xu, J Li, Z Li, S Liao - Physics of Fluids, 2021 - pubs.aip.org
It is important to know the accurate trajectory of a free fall object in fluid (such as a
spacecraft), whose motion might be chaotic in many cases. However, it is impossible to …

Numerical analysis of the wake of complex-shaped snow particles at moderate Reynolds number

G Tagliavini, M McCorquodale, C Westbrook… - Physics of …, 2021 - pubs.aip.org
Climate model parametrization relies strongly on the prediction of snow precipitation, which
in turn depends upon the snowflakes falling motion in air. The falling attitudes of such …

Wake characteristics of complex-shaped snow particles: Comparison of numerical simulations with fixed snowflakes to time-resolved particle tracking velocimetry …

G Tagliavini, MH Khan, M McCorquodale… - Physics of …, 2022 - pubs.aip.org
Experimental and numerical approaches have their own advantages and limitations, in
particular, when dealing with complex phenomena such as snow particles falling at …

TRAIL part 2: A comprehensive assessment of ice particle fall speed parametrisations

MW McCorquodale… - Quarterly Journal of the …, 2021 - Wiley Online Library
Results are presented from a comprehensive experimental campaign studying the
aerodynamics of 3D‐printed analogues of ice particles. Measurements of the drag …

TRAIL: A novel approach for studying the aerodynamics of ice particles

MW McCorquodale… - Quarterly Journal of the …, 2021 - Wiley Online Library
A novel experimental approach for studying the aerodynamics of ice particles is presented.
The Trajectory Reconstruction Algorithm implemented through Image anaLysis (TRAIL) …

Slip velocity of large low-aspect-ratio cylinders in homogeneous isotropic turbulence

ML Byron, Y Tao, IA Houghton, EA Variano - International Journal of …, 2019 - Elsevier
Using laboratory experiments, we investigate the turbulent slip velocity of large (Taylor-
scale), slightly negatively buoyant cylinders at two mass densities and four aspect ratios …

Investigation of the free-fall dynamic behavior of a rectangular wing with variable center of mass location and variable moment of inertia

Y Dou, K Wang, Z Zhou, PR Thomas, Z Shao, W Du - Aerospace, 2023 - mdpi.com
In recent years, the air-drop launch technology of near-space UAVs has attracted much
attention. Between downfall from the carrier and the flight control system's initiation, the UAV …