Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:Journal of Dalian University of Technology

Volume:61

Issue:2

Page Number:143-150

ISSN No.:1000-8608

Key Words:"abrasive flow machining; Euler-Euler method; slender round tube; numerical simulation"

CN No.:21-1117/N

Abstract:According to CFD theory and simulation software,a fluid simulation calculation model was established on the basis of Euler-Euler method,and the abrasive flow polishing process of slender round tubes with different types was studied numerically.Taking the Preston equation as evaluation basis,the influences of abrasive particles sizes,and fluid medium on the polishing effect were analyzed,and the change trends of the polishing effect of the inner wall of the tube along the axial direction of the tube under different abrasive flow parameters were obtained.Furthermore,according to the established simulation calculation model,the differential characteristics of the polishing effect of the fluid phase and the solid phase to the inner wall of the tubes were obtained,and the reasons for the difference between the fluid phase and the solid phase at the local position of the flow channel were analyzed.In addition,by changing the temperature of the inlet of abrasive flow,the temperature distribution cloud map and the polishing characteristic curves at different temperatures were obtained,which provides an improvement and optimization direction for the abrasive flow machining of the slender flow channel components.

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