Objective:This study aimed to improve the hot air utilization efficiency of the existing vermicelli drying room.Methods: Using the k—ɛturbulence model as the theoretical model for the simulation analysis of the drying room, the core component of the automated production line, the Fluent software is used to simulate the drying room, and the movement characteristics and flow velocity distribution of the air in the drying room were obtained.Results:The structure of the drying room was optimized and drainage pipes were added. The initial plan was 120.83% faster than the original drying box in the direction perpendicular to the vermicelli drying plate. The cross-sectional shape and size of the drainage pipe were further optimized. The average speed at the outlet position of the drainage pipe with cross-section of 200 mm×200 mm was increased by 19.2% compared with the first optimized scheme, and the coefficient of wind speed unevenness has decreased by 8.89%.Conclusion:After optimization, the hot air utilization efficiency of the drying room, and the wind speed uniformity performance at each outlet are improved.

Publication Date


First Page


Last Page





[1] 向卓亚.甘薯粉丝品质特性及其干燥新工艺研究[D].重庆:西南大学,2018:2.XIANG Zhuo-ya.Study on the quality of sweet potato starch noodles and its new drying technology[D].Chongqing:Xinan University,2018:2.
[2] 周洁.甘薯粉丝干燥机理和干燥技术的研究[D].合肥:安徽农业大学,2010:24.ZHOU Jie.Research on drying mechanism and drying technology of sweet potato vermicelli[D].Hefei:Anhui Agricultural University,2010:24.
[3] 王振文,吴敏,徐新民,等.热泵烘房结构及参数优化仿真设计[J].农业机械学报,2020,51(S1):464-475.WANG Zhen-wen,WU Min,XU Xin-min,et al.Optimal simulation design of structure and parameter in heat pump drying room[J].Transactions of the Chinese Society for Agricultural Machinery,2020,51(S1):464-475.
[4] 李赫,张志,任源,等.基于FLUENT的菊花热风干燥流场特性仿真分析[J].食品与机械,2018,34(10):133-138.LI He,ZHANG Zhi,REN Yuan,et al.Simulation analysis of flow field characteristics of chrysanthemum drying based on FLUENT[J].Food & Machinery,2018,34(10):133-138.
[5] 吴敏,段豪,王振文,等.基于温湿度控制的红外热风联合干燥机设计与试验[J].农业机械学报,2020,51(S1):483-492.WU Min,DUAN Hao,WANG Zhen-wen,et al.Design and experiment of infrared-hot air combind dryer based on temperature and humidity control[J].Transactions of the Chinese Society for Agricultural Machinery,2020,51(S1):483-492.
[6] 刘瑞,董继先,王栋,等.菊花热风烘房的流场模拟及结构优化[J].机械设计,2021,38(1):47-54.LIU Rui,DONG Ji-xian,WANG Dong,et al.Flow-field simulation and structural optimization of the chrysanthemum hot air drying room[J].Journal of Machine Design,2021,38(1):47-54.
[7] 王健,董继先,王栋,等.果蔬干燥箱气流分配室的数值模拟与结构优化[J].陕西科技大学学报,2019,37(1):128-134.WANG Jian,DONG Ji-xian,WANG Dong,et al.Numerical simulation and structure optimization of air distribution chamber in fruit and vegetable drying room[J].Journal of Shaanxi University of Science & Technology,2019,37(1):128-134.
[8] DARABI H,ZOMORODIAN A.Design a cabinet dryer with two geometric configurations using CFD[J].Journal of Food Science & Technology,2015,52(1):359-366.
[9] 于海明,李海源,汪春,等.秧盘干燥机气流分配室流场均匀性仿真分析[J].农机化研究,2020,42(2):15-21.YU Hai-ming,LI Hai-yuan,WANG Chun,et al.Simulation analysis of flow field uniformity in air distribution room of rice seedbed microwave hot air coupling dryer[J].Journal of Agricultural Mechanization Research,2020,42(2):15-21.
[10] 李海亮,汪春,胡军,等.气力式水稻穴盘成型机气流分配室流场仿真与优化设计[J].农业机械学报,2018,49(4):94-101.LI Hai-liang,WANG Chun,HU Jun,et al.Simulation and optimum design on airflow distribution chamber of pneumatic forming machine for rice seeding-growing tray[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(4):94-101.
[11] 霍二光.菊花烘干室内气流组织模拟与优化研究[D].南昌:南昌大学,2016:57-60.HUO Er-guang.Simulation and optimization study on airflow organization in chrysanthemum drying room[D].Nanchang:Nanchang University,2016:57-60.
[12] 李若兰.空气能热风式枸杞烘干机流场均匀性模拟研究[D].西安:西安科技大学,2019:51-53.LI Ruo-lan.Simulating study on flow field uniformity of air-energy hot-air lyceum barbarum dryer[D].Xiʼan:Xiʼan University of Science and Technology,2019:51-53.
[13] 孙帮成,李明高.ANSYS FLUENT仿真分析与优化设计[M].北京:机械工业出版社,2014:8-11.SUN Bang-cheng,LI Ming-gao.ANSYS FLUENT simulation analysis and optimization design[M].Beijing:Machinery Industry Press,2014:8-11.

Included in

Food Science Commons



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.