| 旋转帽罩结冰相似准则的冰风洞试验研究 |
| |
| 引用本文： | 张丽芬,葛鑫,张斐,刘振侠,马栋,吕维进.旋转帽罩结冰相似准则的冰风洞试验研究[J].实验流体力学,2021,35(4):52-59. |
| |
| 作者姓名： | 张丽芬 葛鑫 张斐 刘振侠 马栋 吕维进 |
| |
| 作者单位： | 1.西北工业大学 动力与能源学院，西安 710072 |
| |
| 基金项目： | 结冰与防除冰重点实验室开放课题（IADL20190104） |
| |
| 摘 要： | 为了验证旋转帽罩冰风洞试验相似准则的适用性，开展了旋转帽罩表面结冰过程研究，推导了旋转帽罩结冰相似准则。采用底面直径100 mm、锥角80°的旋转锥作为原尺寸模型，底面直径50 mm、锥角80°的旋转锥作为缩比模型，进行不同工况冰风洞试验。通过图像法采集了帽罩表面冰形，并将冰形进行无量纲化处理，对比了原尺寸模型与缩比模型的结冰冰形。结果表明:对于明冰工况，帽罩前半部分冰形吻合较好，帽罩后半部分吻合欠佳；对于霜冰工况，全尺寸模型与缩比模型的冰形吻合良好。对造成这一现象的原因进行了分析，并提出改进的建议。
|
| 关 键 词： | 旋转帽罩 结冰相似准则 结冰风洞 缩比 |
| 收稿时间： | 2020-12-28 |
An ice wind tunnel test study on the scaling law of a rotating cone |
| |
| Affiliation: | 1.School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China2.Key Laboratory of Icing and Anti/De-Icing, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China |
| |
| Abstract: | In order to verify the scaling law of a rotating cone, a study on a rotating cone icing was carried out, and the icing scaling law of the rotating cone was derived. Taking a cone with a bottom diameter of 100 mm and cone angle of 80° as the full size model, and a cone with a bottom diameter of 50 mm and cone angle of 80° as the scaled model, the ice wind tunnel tests were carried out under different conditions. The ice shape on the surface of the cone was obtained by image method and processed in a dimensionless manner. Then the ice shape of the full size model was compared with that of the scaled model. The results show that, for glaze ice the ice shape of the front half of the cone on the full size and scaled models is in good agreement, but it is not in good agreement at the back half of the cone, and for rime ice the ice shape is in fairly good agreement on the full size and scaled models. The reasons are discussed, and suggestions are put forward for improvement. |
| |
| Keywords: | |
|
| 点击此处可从《实验流体力学》浏览原始摘要信息 |
|
点击此处可从《实验流体力学》下载全文 |
|
