Results 21 to 30 of about 384 (179)
Climate Impact Mitigation Potential of Novel Aircraft Features
Aerospace, 2022 This work presents a transpacific airliner designed for minimal climate impact, incorporating several novel design features. These include open rotor engines, sustainable aviation fuels, natural laminar flow airfoils, and riblets.
Nils M. Barner +4 more
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Shark-Skin-Inspired Micro-Riblets Forming Mechanism of TC17 Titanium Alloy With Belt Grinding
IEEE Access, 2019 Belt grinding could improve the surface integrity of titanium alloys, but it is difficult to achieve breakthroughs in the grinding mechanism due to the lack of grinding mechanism of titanium alloy microriblets structure.
Guijian Xiao, Y. He, Y. Huang, Q. Li
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Turbulent structure effects due to ordered surface roughness
Alexandria Engineering Journal, 2020 The effects of ordered surface feature in the form of converging-diverging riblets are investigated experimentally on an airfoil. Riblet sheets are applied onto the surface of NACA 0026 airfoil at a yaw angle of α=0°,±10°, Riblet height of h = 1 mm, and ...
Zambri Harun +3 more
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Modeling Surface Riblets Skin Friction Reduction Effect with the Use of Computational Fluid Dynamics
Chemical Engineering Transactions, 2020 Towards the minimization of fuel consumption and aicraft emissions reduction, many disruptive technologies have been proposed in aviation industry regarding the improvement of aircraft aerodynamic performance.
Chris Bliamis +3 more
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Study on Riblet Drag Reduction Considering the Effect of Sweep Angle
Energies, 2019 This study computationally evaluates the riblet drag reduction effect considering the effect of sweep angle. An implicit large eddy simulation is performed on a channel flow and an infinite swept wing.
Yufei Zhang, Yuhui Yin
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Numerical simulation of turbulent channel flow with particle-adhered riblet surfaces
Journal of Fluid Science and Technology, 2023 Numerical simulations of particle laden and fully developed turbulent channel flows with rectangular riblet were performed to investigate the influence of particle adhesion on the drag reduction effect.
Chikara SHIMIZU +2 more
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Flow structures and wall parameters on rotating riblet disks and their effects on drag reduction
Alexandria Engineering Journal, 2022 The demand of energy saving and loss mitigation in modern industry gives rise to drag reduction techniques such as micro groove/riblet ever since the last century.
Tong Liang +3 more
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International Journal of Thermofluids, 2021 Turbulence and heat transfer are two critical factors in the chain of world energy consumption. Hence, development of more efficient energy transfer techniques in engineering applications through control and optimization of the thermal turbulent boundary
Shima Soleimani, Steven Eckels
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Numerical and experimental investigations on drag-reducing effects of riblets
Engineering Applications of Computational Fluid Mechanics, 2021 The numerical simulation and force measurement experiment are conducted in this work. The direct numerical simulation method with high-order schemes is performed to resolve the incompressible turbulent flow over riblets.
Chaoqun Li, Shuo Tang, Yi Li, Zihai Geng
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Controllable deformation based self‐adaptive drag reduction for complex surface
Biosurface and Biotribology, 2023 Reduction of energy consumption and improvement of cruising speed are greatly necessary for underwater vehicles. Previously, regular riblets have been machined and the drag reduction has been verified; however, the riblet parameters are not adjusted like
Dengke Chen, Xianxian Cui, Huawei Chen
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