TRAIL: A novel approach for studying the aerodynamics of ice particles
TRAIL: A novel approach for studying the aerodynamics of ice particles
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TRAIL:研究冰粒空气动力学的新方法
DOI:
10.1002/qj.3935
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发表时间:
2020
影响因子:
8.9
通讯作者:
McCorquodale M
中科院分区:
文献类型:
--
作者:
McCorquodale M
A novel experimental approach for studying the aerodynamics of ice particles is presented. The Trajectory Reconstruction Algorithm implemented through Image anaLysis (TRAIL) produces digital reconstructions of the trajectory and orientation of 3D‐printed analogues of ice particles that fall through a quiescent viscous liquid. Data extracted from this analysis can be used to test fall speed parametrisations and investigate the preferred orientation of analogues with complex irregular geometries. Experiments using thin circular discs are used to validate this approach. Measurements from a case study in which an analogue of an aggregate ice particle is used are also reported. Data extracted from the analysis clearly demonstrate important, but poorly understood, aspects of the aerodynamics of atmospheric ice particles. For example, the orientation that the analogue adopts in free fall is shown to depend not only on the geometric shape of the particle, but also on the Reynolds number at which it falls. In addition, measurements of the drag coefficient indicate that the accuracy of fall speed parametrisations reduces at high Reynolds number due to the onset of unsteady motions.
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DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
J. Böhm
通讯作者:
J. Böhm
影响因子:
3.1
作者:
M. Kajikawa
通讯作者:
M. Kajikawa
影响因子:
8.9
作者:
K. Jayaweera;R. Cottis
通讯作者:
R. Cottis
影响因子:
8.9
作者:
C. Westbrook;A. Illingworth;E. O'connor;R. Hogan
通讯作者:
C. Westbrook;A. Illingworth;E. O'connor;R. Hogan
影响因子:
3.1
作者:
Joseph J. Nettesheim;Pao K. Wang
通讯作者:
Joseph J. Nettesheim;Pao K. Wang