2008年10月
Retrieval of collision kernels from the change of droplet size distributions with linear inversion
PHYSICA SCRIPTA
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- 巻
- T132
- 号
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0031-8949/2008/T132/014050
- 出版者・発行元
- IOP PUBLISHING LTD
We have developed a new simple inversion scheme for retrieving collision kernels from the change of droplet size distribution due to collision growth. Three-dimensional direct numerical simulations (DNS) of steady isotropic turbulence with colliding droplets are carried out in order to investigate the validity of the developed inversion scheme. In the DNS, air turbulence is calculated using a quasi-spectral method; droplet motions are tracked in a Lagrangian manner. The initial droplet size distribution is set to be equivalent to that obtained in a wind tunnel experiment. Collision kernels retrieved by the developed inversion scheme are compared to those obtained by the DNS. The comparison shows that the collision kernels can be retrieved within 15% error. This verifies the feasibility of retrieving collision kernels using the present inversion scheme.
- リンク情報
- ID情報
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- DOI : 10.1088/0031-8949/2008/T132/014050
- ISSN : 0031-8949
- Web of Science ID : WOS:000262583600051