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| 配内燃机车离心风机的设计改型 |
| Remolding design of DF8CJ centrifugal fan |
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| DOI： |
| 中文关键词: 离心风机 改型 数值模拟 |
| 英文关键词:centrifugal fan remolding design numerical simulation |
| 基金项目: |
| 余昊菲 帕丽达·牙合甫 吴文权 |
| 上海理工大学,城市建设与环境工程学院,上海,200093? |
| 摘要点击次数: 3296 |
| 全文下载次数: 83 |
| 中文摘要: |
| 利用商业软件Fluent时配内燃机车离心风机内部气流的流动情况进行了数值模拟.模拟结果与实验结果对比表明,两者能够较好的吻合,误差在5%以下.在此基础上,对风机内部的流场分布,尤其是沿叶高方向气流的流动情况进行了分析,找到了导致风机效率较低的原因,并有针对性地对风机进行了改型.改型后的模拟结果显示,风机的效率提高了6%左右,效率提升较为明显. |
| 英文摘要: |
| In this paper, a numerical simulation of the air flow pattern in the DF8CJ centrifugal fan was carried out using the commercial software Fluent. Experimental data from platform experiments indicate a well fit between the results from simulation and experiments, and the difference is below 5%. Based on the simulation, the inner flow field, especially the air flow status along the height of the blade, was analyzed. The main reason for a low efficiency of the DF8CJ centrifugal fan was thus found and a remoldin... |
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