饲料工业2026，Vol.47Issue(9)：11-20,10.DOI:10.13302/j.cnki.fi.2026.09.002
基于CFD的液态饲料发酵罐结构设计及其传质特性研究
Study on Structural Design and Mass Transfer Characteristics of Liquid Feed Fermentation Tank Based on CFD
摘要
Abstract
A comprehensive computational fluid dynamics(CFD)simulation model was established to investigate liquid fermentation tanks,employing an innovative approach using component transfer(tracer)methods.The model's applicability was validated through power-based verification.Focusing on the fermenter structure,the study examined the flow field dynamics under varying impeller blade lengths,blade angles,and tank diameters.The findings indicate that:① CFD numerical simulations of liquid feed fermentation tanks showed that the average deviation between the simulated power curves and experimental power curves was less than 5%,demonstrating the model's suitability under these conditions;② impeller blade lengths ranging from 10 mm to 30 mm facilitated tracer diffusion and enhanced mixing,particularly effective for denser materials;③ comparison of tracer diffu-sion and velocity fields at different blade angles revealed a significant increase in mixing effi-ciency within the 45°-75° range;④ when tank diameters ranged from 300 mm to 320 mm,the internal flow velocities were higher,with reduced material settling risks and improved mixing effectiveness.The research underscores that optimizing fermen-ter structural design can significantly enhance mixing performance,thereby improving the overall fermenta-tion efficiency of liquid feed substrates.关键词
液态饲料/发酵罐/CFD/混合效率/桨叶长度/桨叶角度/罐体直径Key words
liquid feed/fermentation tank/CFD/mixing efficiency/blade length/blade angle/tank diameter分类
农业科技引用本文复制引用
夏尚飞,夏尚远,陶辉,李东民,柴委,高敏..基于CFD的液态饲料发酵罐结构设计及其传质特性研究[J].饲料工业,2026,47(9):11-20,10.基金项目
山东省科技型中小企业创新能力提升工程项目[2023TSGCO615] （）
枣庄市科技创新工程项目[2024GX10] （）
