大涡模拟搅拌槽内混合时间

闵健; 高正明

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大涡模拟搅拌槽内混合时间

机译：大涡模拟搅拌槽内混合时间

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机译：Large eddy simulations (LES) of mixing process in a stirred tank of 0.476m diameter with a 3-narrow blade hydrofoil CBY impeller were reported. The turbulent flow field and mixing time were calculated using LES with Smagorinsky-Lilly subgrid scale model. The impeller rotation was modeled using the sliding mesh technique. Better agreement of power demand and mixing time was obtained between the experimental and the LES prediction than that by the traditional Reynolds-averaged Navier-Stokes (RANS) approach. The curve of tracer response predicted by LES was in good agreement with the experimental. The results show that LES is a reliable tool to investigate the unsteady and quasi-periodic behavior of the turbulent flow in stirred tanks.

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来源
《中国化学工程学报（英文版）》 |2006年第1期|1-7|共7页
作者
闵健; 高正明;
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作者单位

College of Chemical Engineering Beijing University of Chemical Technology Beijing 100029 China;

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收录信息中国科学引文数据库(CSCD);
原文格式 PDF
正文语种 chi
中图分类一般性问题;
关键词
large eddy simulations; subgrid scale model; mixing time; hydrofoil impeller;
入库时间 2022-08-19 04:31:30

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大涡模拟搅拌槽内混合时间

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