Paper Title:
Drag Reduction Effect of Dimples Arranged in Two-Dimensional Quasicrystal Structure
  Abstract

Rotating fluids experiments were carried out by CAP2000+ cone viscometer, to examine the drag reduction properties of dimples arranged in quasicrystal structure. The dimples were fabricated on the surface of duralunmin (LY12) plates. Compared with the periodic arrays, the dimples arranged in quasicrystal structure, especially the 12-fold quasicrystal structure, could significantly reduce the wall shear stress. And the relative drag reduction efficiency changes periodically with the depth of dimple. Flow-visualization experiment verified that the coherent effect of dimples arranged in quasicrystal structure and the fluids could efficiently inhibit the extending intensity of radial secondary flow, which strengthens the drag reduction effect.

  Info
Periodical
Advanced Materials Research (Volumes 146-147)
Edited by
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
Pages
331-335
DOI
10.4028/www.scientific.net/AMR.146-147.331
Citation
W. H. Xue, X. G. Geng, F. Li, J. Li, Y. Zhang, J. Wu, "Drag Reduction Effect of Dimples Arranged in Two-Dimensional Quasicrystal Structure", Advanced Materials Research, Vols. 146-147, pp. 331-335, 2011
Online since
October 2010
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Price
$32.00
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