高校化学工程学报Issue(3)：489-496,8.DOI:10.3969/j.issn.1003-9015.2014.05.14.02
改进CBY桨搅拌釜内单相流体流动与传热特性研究
Study on Single Phase Fluid Flow and Heat-Transfer Performance in a Stirred Tank with an Improved CBY Hydrofoil Impeller
摘要
Abstract
Flow performance of a single-phase system in a stirred tank equipped with a grooved hydrofoil impeller (CBY-H) was studied with fluid dynamics software FLUENT (V6.3). A multiple reference frame (MRF) method and the RNG k-εturbulence model were chosen to simulate steady liquid flow performance and results were compared with that of a standard CBY impeller. Research shows that the CBY-H impeller improves liquid axial-flow performance, and the axial velocity around and below the blade area is larger than that of the standard CBY impeller. The study using the CBY-H impeller shows that high flow-speed liquid covers a wider area with more uniform velocity distribution. Moreover, the CBY-H impeller shows 18.4%less energy consumption and the convective heat transfer coefficient of the stirred tank with the CBY-H impeller is slightly higher than that of the standard CBY impeller. The correlation between Nu and Re was also obtained.关键词
翼型桨/数值模拟/轴向速度/传热实验Key words
hydrofoil impeller/numerical simulation/axial velocity/heat-transfer分类
化学化工引用本文复制引用
车圆圆,周俊超,毕纪葛,何潮洪..改进CBY桨搅拌釜内单相流体流动与传热特性研究[J].高校化学工程学报,2014,(3):489-496,8.基金项目
国家自然科学基金项目(21376207)；浙江省自然科学基金杰出青年团队项目(R4090358)；浙江省重点科技创新团队(2010R50017)。 （21376207）
