吉首大学学报（自然科学版）2016，Vol.37Issue(5)：59-62,4.DOI:10.3969/j.cnki.jdxb.2016.05.014
切纵流联合收割机清选室内气流场的模拟仿真
Simulation Research of Airflow Field in the Cleaning Room Tangential-Axial Combine Harvester
摘要
Abstract
There exist the problems of high rate of loss and great percentage of trash content for tangen-tial-axial combine harvester.In order to analyze the causes for low cleaning performance,airflow field dis-tribution in cleaning room of tangential-axial combine harvester was simulated,with the CFD simulation software to analyze the airflow in the air passage of the cleaning room.The results showed that the clean-ing room airflow distribution was symmetrical in the screen surface width direction;the airflow velocity decreased in the height direction gradually;the airflow velocity at the forepart was low in the screen length direction;the velocity reached the maximum near the middle of the screen.Airflow field in clean-ing room was also measured to verify the accuracy of the simulation experiment.关键词
切纵流/清选室/气流分布/CFD仿真Key words
tangential-axial/cleaning room/airflow distribution/CFD simulation分类
农业科技引用本文复制引用
李方,欧启鹏,蔡帆,唐浩然..切纵流联合收割机清选室内气流场的模拟仿真[J].吉首大学学报（自然科学版）,2016,37(5):59-62,4.基金项目
湘西州科技研发资助项目（州财企指［2015］18号）；吉首大学校级科研课题资助项目 （）
