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Low Reynolds number effect on CFD prediction of bio inspired aerodynamics

Boughoue, Smail and Omar, Ashraf A. and Elsayed, Omer Ali and Boukharfan, Radouan and Mohammed Aldheeb, Mohammed Abdulmalek (2022) Low Reynolds number effect on CFD prediction of bio inspired aerodynamics. In: AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022, 3rd-7th January 2022, San Diego.

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This work is motivated by the need for the implementation of the best numerical modelsfor low Reynolds flows and presents the state–of–the–art of the implemented models for thetransition of the laminar-turbulent predictions. The numerical models are applied to investigatethe aerodynamic characteristics and flow behavior around bird–like airfoils. Two DimensionalReynolds Averaged Navier Stokes (2D RANS) and Three-Dimensional Unsteady (3D U-RANS)methods are applied at a Reynolds number of105, whereas two-dimensional laminar simulationsand three-dimensional Large Eddy Simulation are employed for the known Owl-like airfoil atReynolds number of2.3×104. The numerical results of flow fields around Owl-like airfoil atthe latter Reynolds number using two-dimensional laminar and 3DLES predict correctly theunsteadiness of the aerodynamic coefficients. The 2D and 3D RANS methods are predicting wellthe aerodynamics characteristics for the man-made-bird-like airfoil at Reynolds number of105.

Item Type: Conference or Workshop Item (Other)
Uncontrolled Keywords: Aerodynamic CharacteristicsAirfoilReynolds Averaged Navier StokesDirect Numerical SimulationNumerical ModelingAerodynamic PerformanceXFoilTurbulence ModelsLaminar Separation BubbleUnmanned Aerial Vehicle
Subjects: T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Dr Mohammed Aldheeb
Date Deposited: 22 Nov 2022 08:54
Last Modified: 22 Nov 2022 08:55
URI: http://irep.iium.edu.my/id/eprint/101058

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