Analysis of Shark Skin Riblet Surfaces for Fluid Drag Reduction in Turbulent Flow Regime
A. Sabik Nainar1, S. Karthik2
1A. Sabik Nainar, Assistant Professor, Department of Aeronautical Engineering, Excel Engineering College, Namakkal (Tamil Nadu), India.
2S. Karthik, Assistant Professor, Department of Aeronautical Engineering, Excel Engineering College, Namakkal (Tamil Nadu), India.
Manuscript received on 24 November 2019 | Revised Manuscript received on 18 December 2019 | Manuscript Published on 30 December 2019 | PP: 666-668 | Volume-9 Issue-1S4 December 2019 | Retrieval Number: A10411291S419/19©BEIESP | DOI: 10.35940/ijeat.A1041.1291S419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The integument of fast swimming shark exhibits riblet inspired micro- structured surfaces oriented in the path of flow that will help to make lesser the wall drag in the tempestuous-flow system (turbulent flow). Design have been made for study and utilization, that has been recreate and refine as same as of the shark-skin riblets, presuming an extreme drag depletion of nearly 10% (percent). Mechanism of fluid drag in tempestuous flow and riblet drag depletion theories from experiments and simulations are examined. An examination of riblet intrepratation are discussed and the stellar riblet sizes are defined. An assessment of studies experimenting with riblets-topped shark scale replicas is also discussed. A method for preferring stellar riblet dimensions based on fluid-flow attributes is briefed and current manufacturing approaches are summarized. Due to the existence of little amounts of mucus/booger membranes on the integument of the shark, it is presumed that the constrained application of aqua phobic materials will recast the flow field around the riblets in some way favorable to the goals of augmented drag depletion.
Keywords: Shark Skin, Drag Depletion, Riblets, Turbulent Flow.
Scope of the Article: Fluid Mechanics