文献类型：期刊文献

英文题名：Numerical simulation on liquid film flow turbulence characteristics of corrugated baffle-type plate under high Reynolds number

作者：Wang, Liang[1]

机构：[1]East China Univ Sci & Technol, Clean Coal Technol Res Inst, Shanghai 200237, Peoples R China

年份：2025

卷号：217

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20253419035126);WOS:【SCI-EXPANDED(收录号:WOS:001561270400001)】；

语种：英文

外文关键词：Corrugated baffle; Liquid film thickness; Liquid Reynolds number; Different structure; Flow characteristic

摘要：The stability of falling film flow is an important research problem in the vertical falling film evaporation flow.In this paper, the vertical falling film device with corrugated baffles is proposed, corrugated baffles are added to the structure of the traditional flat falling film device.The falling film device is simulated by fluent, and the effects of wave height, wavelength and inlet flow rate on the measurement results are analyzed. The results show that compared with the traditional flat plate liquid film falling device, the corrugated plate baffle has smaller turbulence intensity and greater resistance liquid film thickness. The higher wave height is, the turbulence intensity of the corrugated baffle is greater. However, the thickness of liquid film varies greatly. The smaller wavelength is, the turbulence intensity of the corrugated plate is smaller, but the change of liquid film thickness is also very small. The maximum deviation between the empirical formula of the fitting curve between the liquid film thickness and Reynolds number and the calculated value is 14.93 %. The maximum deviation of average liquid film thickness is 2.32 %, the maximum standard deviation(SD)is 0.27 mm, and the maximum relative standard deviation(RSD)is 0.061.