关键词: 搅拌槽Rushton涡轮, 内外迭代法, “快照”法, 数值模拟, k–e湍流模型

Abstract: In baffled stirred vessels, the rotating impeller generates complex three-dimensional turbulent flow. In this article, the whole flow field in the baffled tank with a Rushton disk turbine was numerically simulated using the improved inner–outer iterative procedure and “snap-shot” method with the k–e turbulence model. As compared with published experimental data, the model prediction agrees well with the experimental data. The improved inner–outer iterative algorithm demands no empirical formula and experimental data, and the approach seems generally applicable for simulating stirred tanks under turbulent conditions.

Key words: ecological industry, process engineering, circulating production, life cycle analysis, incorporated pollution prevention