Experimental Study of Dynamic Drag and Lift Characteristics of Dimpled Cylinders

A better understanding of the relationship between the drag reduction on circular cylinders and surface roughness in the form of dimples is established. A series of experiments in the Reynolds number range between 2 × 104 and 8 × 104 were performed to measure the force characteristics of single cylinders with smooth, full-dimpled, and half-dimpled surfaces in a towing tank. It was found that the dimple patterns significantly influence the mean drag coefficient . It is shown that varies significantly as a function of the flow incident angle with respect to the orientation of the half-dimpled cylinder.

• Record URL:
  https://doi.org/10.4031/MTSJ.50.1.7
• Record URL:
  http://www.ingentaconnect.com/content/mts/mtsj/2016/00000050/00000001/art00007
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1623789
• Supplemental Notes:
  • Copyright © 2016 Marine Technology Society, Inc.
• Authors:
  • Zhou, Bo
  • Li, Yalin
  • Wang, Xikun
  • Guo, Wei
  • Tan, Soon-Keat
• Publication Date: 2016-1

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 56-61
• Serial:
  • Marine Technology Society Journal
  • Volume: 50
  • Issue Number: 1
  • Publisher: Marine Technology Society
  • ISSN: 0025-3324
  • Serial URL: http://ingentaconnect.com/content/mts/mtsj

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Drag; Engine cylinders; Experiments; Lift drag ratio; Roughness
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01597600
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 28 2016 2:43PM