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Archive of Advanced Engineering Science — Volume 49 (2017), Issue 4

Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-762
Title : Calculation Method of Boundary Shear Stress in a Sharply-curved Channel
Xiang Y, , Yu M, , Wei H, , Yu F,
Abstract : The accurate calculation of boundary shear stress is very important to the deep understanding of sediment transportation and river evolution. The current research is limited to straight and mildly curved channels, while for a sharply-curved channel, the flow is complex accompanied by transverse circulation and large transverse slope which was affected by the dual effect of gravity and centrifugal force. As the boundary shear stress was affected by many factors, the applicability of differentcalc
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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-9
Title : Outlet Suction and Leakage of Mechanical Seal with Inclined Elliptical Dimples
JI Hua, , CHEN Xiao, , WANG Yanhao, , ZHANG Ke, , CHEN Zhi,
Abstract : It has been showed directly or indirectly that the lubricant is possible to be sucked back into the mechanical seal with dimples or grooves in the existing studies.This phenomenon,termed "outlet suctio" in this paper,may decrease the leakage.Further studies are still required for this phenomenon and its mechanism.A three-dimensional fluid numerical simulation,based on the multiphase flow cavitation model in Fluent,was developed for the mechanical seal with inclined elliptical dimples.The causes
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