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Drag reduction by using the microriblet of sawtooth and scalloped types


Heidarian, A and Ghassemi, H and Liu, P, Drag reduction by using the microriblet of sawtooth and scalloped types, International Journal of Physics, 6, (3) pp. 93-98. ISSN 2333-4568 (2018) [Refereed Article]


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Copyright 2018 Science and Education Publishing. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

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DOI: doi:10.12691/ijp-6-3-5


Nowadays, considering the importance of the drag reduction and increasing the speed is demand of all owners. In the field of marine industry, there should be an ongoing attempt to reduce fuel consumption of the marine vehicles. In this research, nature has been used as a guide to reach our target. Study of the skin of the fast marine’s faunas such as sharks and dolphins has generated the idea of riblet covered surfaces. Two various types of the riblets surfaces (sawtooth and scalloped) which are studied in this research. The microriblets are applied on the flat plate and investigated the effects on hydrodynamics parameters through the computational fluid dynamics method in ANSYS CFX. The results have been validated with the experimental results. By comparing the drag coefficient of simple flat plate with riblet one, it is concluded that riblets diminish drag force about 11% and raise lift about 6 % relative to the simple flat plate.

Item Details

Item Type:Refereed Article
Keywords:drag reduction, micro riblet, computational fluid dynamics, lift force
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ship and platform structures (incl. maritime hydrodynamics)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Liu, P (Associate Professor Pengfei Liu)
ID Code:126093
Year Published:2018
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2018-05-23
Last Modified:2018-11-26
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