基于CFD的油菜籽联合收割机旋风分离器工作参数对分离器性能的影响

IF 2.2 2区 农林科学 Q2 AGRICULTURAL ENGINEERING
Xingyu Wan, Jiacheng Yuan, Jia Yang, Yitao Liao, Qingxi Liao
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引用次数: 2

摘要

:现有的油菜籽联合收割机旋风分离清洗部件采用悬浮气流将油菜籽与籽粒以外的物料(MOG)分离,该部件的最佳工作参数难以确定,需要基于计算流体力学(CFD)对不可见气流进行探索。气流状态主要受入口风速的影响,而出口风速主要受MOG气流状态的影响。进行了单因素试验和响应面试验。可以发现,入口和MOG出口速度通过风量的变化对风速产生影响。建立了旋流器内风速与工作参数关系的数学模型,通过多目标优化得到了旋流器内工作参数的最优组合。最优组合的入口和出口速度分别为4.25 m/s和29.87 m/s。在此条件下,经现场试验验证,清洗装置的清洗率和损失率分别为94.62%和5.39%。研究结果可为油菜籽联合收割机清洗系统的改进提供参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of working parameters on the performance of cyclone separator for rapeseed combine harvester based on CFD
: Existing development for cyclone separation cleaning components of the rapeseed combine harvester, which employs the suspending airflow to separate the rapeseeds from the materials other than grain (MOG), has the challenge to figure out the optimal working parameters, highlighting a need for exploration of the invisible airflow based on Computational Fluid Dynamics (CFD). The airflow status was mainly affected by the air velocities of the inlet, and the outlet for the MOG. The single factor and response surface experiments were carried out. It could be found that the inlet and MOG outlet velocities affected the air velocities through the change in the air quantity. Furthermore, the mathematical model of the relationship between the air velocities inside the cyclone and the working parameters was built, and the optimal combination of working parameters was obtained by multi-objective optimization. The inlet and outlet velocities of the optimal combination were 4.25 m/s and 29.87 m/s, respectively. Under this condition, the cleaning ratio and loss ratio of the cleaning device was 94.62% and 5.39%, respectively, as validated by the field experiment. The findings provide references for the improvement of cleaning systems for rapeseed combine harvesters.
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来源期刊
CiteScore
4.30
自引率
12.50%
发文量
88
审稿时长
24 weeks
期刊介绍: International Journal of Agricultural and Biological Engineering (IJABE, https://www.ijabe.org) is a peer reviewed open access international journal. IJABE, started in 2008, is a joint publication co-sponsored by US-based Association of Agricultural, Biological and Food Engineers (AOCABFE) and China-based Chinese Society of Agricultural Engineering (CSAE). The ISSN 1934-6344 and eISSN 1934-6352 numbers for both print and online IJABE have been registered in US. Now, Int. J. Agric. & Biol. Eng (IJABE) is published in both online and print version by Chinese Academy of Agricultural Engineering.
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