大型剪切型混合罐的流场仿真与分析

被引：1

作者：

戴宁 ^{[1
]}

张裕中 ^{[1
]}

张茂龙 ^{[2
]}

袁炀 ^{[1
]}

机构：

[1] 江南大学机械工程学院

[2] 无锡轻大食品装备有限公司

来源：

农业工程学报 | 2012年 / 28卷 / 14期

关键词：

混合; 流场; 数值模拟; 剪切型; 罐;

D O I：

暂无

中图分类号：

TS203 [机械与设备];

学科分类号：

083201 ;

摘要：

为了考察大型混合罐内的液体流动特征,该文采用计算流体力学(computational fluid dynamics,CFD)方法、利用ANSYS13.0软件,选用标准k-ε模型和多重参考系法,研究大型剪切型混合罐内的流体力学特性,获取大尺度混合罐内的压力、速度、湍流耗散率等参数及液体流动特征,并通过可视化试验验证了混合罐内流体的流动情况。研究结果表明,随着叶轮转速的增加,混合罐内的负压区扩大且压差增大,液体流速增大,使混合罐内的湍流作用增强,高剪切装置内及附近区域的能量耗散率非常高且集中,说明在这些区域内的混合效果显著。研究结果可为此类工业用混合罐的优化设计提供参考。

引用

页码：58 / 64

页数：7

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