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Additional Study of Water Droplet Median Volume Diameter (MVD) Effects on Ice Shapes
| 题名： | Additional Study of Water Droplet Median Volume Diameter (MVD) Effects on Ice Shapes |
| 作者： | Tsao, Jen-Ching; Anderson, David N. |
| 关键词： | diameter；shape；median；plet；volume；apes；ects；study；water；drop |
| 摘要： | This paper reports the result of an experimental study in the NASA Glenn Icing Research Tunnel (IRT) to evaluate how well the MVD-independent effect identified previously might apply to SLD conditions in rime icing situations. Models were NACA 0012 wing sections with chords of 53.3 and 91.4 cm. Tests were conducted with a nominal airspeed of 77 m s (150 kt) and a number of MVD's ranging from 15 to 100 m with LWC of 0.5 to 1 g cu m. In the present study, ice shapes recorded from past studies and recent results at SLD and Appendix-C conditions are reviewed to show that droplet diameter is not important to rime ice shape for MVD of 30 microns or larger, but for less than 30 m drop sizes a rime ice shape transition from convex to wedge to spearhead type ice shape is observed. |
| 报告类型： | 科技报告 |
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