Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | NACA-TR-1107 |
| 来源ID | NTRS_Document_ID: 19930092143 |
| An empirically derived basis for calculating the area, rate, and distribution of water-drop impingement on airfoils | |
| Bergrun, Norman R | |
| 英文摘要 | An empirically derived basis for predicting the area, rate, and distribution of water-drop impingement on airfoils of arbitrary section is presented. The concepts involved represent an initial step toward the development of a calculation technique which is generally applicable to the design of thermal ice-prevention equipment for airplane wing and tail surfaces. It is shown that sufficiently accurate estimates, for the purpose of heated-wing design, can be obtained by a few numerical computations once the velocity distribution over the airfoil has been determined. The calculation technique presented is based on results of extensive water-drop trajectory computations for five airfoil cases which consisted of 15-percent-thick airfoils encompassing a moderate lift-coefficient range. The differential equations pertaining to the paths of the drops were solved by a differential analyzer. |
| 英文关键词 | WATER DROPS (LIQUIDS) IMPINGEMENT DISTRIBUTION RATES (PER TIME) TRAJECTORY ANALYSIS AIRFOILS AIRFOIL PROFILES ANALYSIS (MATHEMATICS) DIFFERENTIAL EQUATIONS |
| 出版年 | 1952 |
| 语种 | 英语 |
| 国家 | 美国 |
| URL | http://hdl.handle.net/2060/19930092143 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/258391 |
| 推荐引用方式 GB/T 7714 | Bergrun, Norman R. An empirically derived basis for calculating the area, rate, and distribution of water-drop impingement on airfoils,1952. |
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