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Molecular Dynamics Study of Fluid Solid Interfacial Slip and Its Effect on Aerodynamic Drag

Publication Type : Conference Proceedings

Publisher : MATEC Web of Conferences 2017 International Conference on Mechanical, Material and Aerospace Engineering, 2MAE 2017; Beijing; China, EDP Sciences

Source : MATEC Web of Conferences 2017 International Conference on Mechanical, Material and Aerospace Engineering, 2MAE 2017; Beijing; China, EDP Sciences, Volume 114 (2017)

Url : https://www.scopus.com/inward/record.uri?eid=2-s2.0-85025464448&doi=10.1051%2fmatecconf%2f201711402007&partnerID=40&md5=9f15203dee9bf920f2fc0e3f069c7f7b

Keywords : Aerodynamic drag, Aerodynamics, Aerospace engineering, Chemical compositions, Contact angle, Drag, Fluid-surface interactions, Hierarchical Nanostructures, Hydrodynamic slippage, molecular dynamics, Physical structures, Static contact angle, Tunable wettabilities, Vertically aligned, Wetting

Campus : Amritapuri

School : School of Engineering

Department : Mechanical

Year : 2017

Abstract : Interfacial hydrodynamic slippage is controlled by two factors say physical structure and chemical composition. Various studies have been conducted experimentally which try to connect the physical structure of the surface and its chemical property on the interfacial wettability. One such example is the Tunable wettability in surface-modified ZnO-based hierarchical nanostructures [2]. In which vertically aligned Nanoneedles and Nanonails were employed as a platform to determine the effect of surface structure. According to which a variation in static contact angles were observed as the cap size the nanonails constantly increased. Starting with a contact angle of 104° the contact angle first increases and then decreases, which means that the slip length first increases and then decreases. The increase in slip length reduces the drag, which has immense application in the aerodynamic field. This paper investigates the relation between the chemical wettability and aerodynamic drag by performing MD simulations of couette flow with varying fluid-surface interaction. © The Authors, published by EDP Sciences, 2017.

Cite this Research Publication : A. Mohammed and Jeetu. S. Babu, “Molecular Dynamics Study of Fluid Solid Interfacial Slip and Its Effect on Aerodynamic Drag”, MATEC Web of Conferences 2017 International Conference on Mechanical, Material and Aerospace Engineering, 2MAE 2017; Beijing; China, vol. 114. EDP Sciences, 2017.

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