Optimization on the jet characteristics of the main nozzle of hot-blowing snow removal device
| Autor: | Qingrui Yu, Jinhai Hu, Yingsan Geng, Xiangyi Zhang, Yayun Tang |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Vibroengineering. 24:1148-1161 |
| ISSN: | 2538-8460 1392-8716 |
| DOI: | 10.21595/jve.2022.22352 |
| Popis: | The exhaust devices used by snow removal vehicles are mainly based on hot-blowing snow removal. Due to the inherent characteristics of the turbojet engine such as low flow rate and high exhaust temperature, the modified hot-blowing snow removal device has problems of low snow removal efficiency and the possibility of ablation and damage to the road surface. In order to solve the problem, transforming the turbofan engine with a high flow rate and a low exhaust temperature into a hot-blowing snow removal device is an important improvement to achieve efficient and safe snow removal operations. In order to convert a medium bypass ratio turbofan engine into a hot-blowing snow removal device, the computational fluid dynamics (CFD) software CFX was used to analyze the internal and external flow field characteristics of the main nozzle of an exhaust device under the 60 % rated condition of the engine. The effective area sizes of the jet velocity and temperature predicted by the external flow field were used to optimize the layout of the main nozzle. |
| Databáze: | OpenAIRE |
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