A review of turbulent skin-friction drag reduction by near-wall transverse forcing [PDF]
Progress in Aerospace Sciences, 2021 Pierre Ricco +2 more
exaly +2 more sources
Assessment of Drag Reduction Devices Mounted on a Simplified Tractor-Trailer Truck Model [PDF]
Journal of Applied and Computational Mechanics, 2021 Aerodynamic drag reduction of tractor-trailer combination trucks is critically important to improve their fuel consumption which consequently results in lower emissions.
Terrance Charles, Zhiyin Yang, Yiling Lu
doaj +1 more source
Drag reduction on a transonic airfoil [PDF]
Journal of Fluid Mechanics, 2022 Flow control for turbulent skin-friction drag reduction is applied to a transonic airfoil to improve its aerodynamic performance. The study is based on direct numerical simulations (with up to 1.8 billion cells) of the compressible turbulent flow around ...
M. Quadrio +5 more
semanticscholar +1 more source
Prediction of Drag Reduction Rate in Turbulent Channel Flow Based on BP Neural Network [PDF]
E3S Web of Conferences, 2020 The technology of turbulent drag reduction by viscoelastic additives cannot be widely applied in practical engineering due to the difficulty in judging the effect of drag reduction.
Cao Yuchen, Yang Yongwen
doaj +1 more source
Turbulent Drag Reduction by Streamwise Traveling Waves of Wall-Normal Forcing
Annual Review of Fluid Mechanics, 2023 We review some fundamentals of turbulent drag reduction and the turbulent drag reduction techniques using streamwise traveling waves of blowing/suction from the wall and wall deformation.
K. Fukagata, K. Iwamoto, Y. Hasegawa
semanticscholar +1 more source
Computational Analysis of Turbulent Flow over a Bluff Body with Drag Reduction Devices [PDF]
Journal of Applied and Computational Mechanics, 2020 Reducing aerodynamic drag of heavy trucks is crucially important for the reduction of fuel consumption and hence results in less air pollution. One way to reduce the aerodynamic drag is the deployment of drag reduction devices at the rear of trucks and ...
Adam Abikan, Zhiyin Yang, Yiling Lu
doaj +1 more source
Superhydrophobic drag reduction in turbulent flows: a critical review
Experiments in Fluids, 2021 Superhydrophobic (SHPo) surfaces have been investigated vigorously since around 2000 due in large part to their unique potential for hydrodynamic frictional drag reduction without any energy or material input.
Hyungmin Park, Chang‐Hwan Choi, C. Kim
semanticscholar +1 more source
Drag Characteristics and Reduction Test for Hub of Coaxial-rotor Helicopter
Hangkong gongcheng jinzhan, 2020 The drag of coaxial helicopter hub accounts is more than 50% of the total helicopter's waste drag, so it is necessary to research the drag characteristics and reduction design of the hub. Wind tunnel test is carried out for a coaxial helicopter hub model,
LONG Haibin, WU Yuping
doaj +1 more source
Frontiers in Bioengineering and Biotechnology, 2022 Square cylinders are widely used in various fields. For example, they are common structures in fishways. The flow around square cylinders has been a common problem in various fields.
Siying Wang, Qibiao Wu, Xiaotao Shi
doaj +1 more source
Numerical Study of Combined Drag Reduction Bases on Vortex Generators and Riblets for the Ahmed Body using IDDES Methodology [PDF]
Journal of Applied Fluid Mechanics, 2022 The flow fields around vehicle drag reduction devices are three-dimensional, complicated, and unsteady. Meanwhile, the small scale of the drag reduction device brings more challenges to the simulation. An Improved Delayed Detached Eddy Simulation (IDDES)
X. Yang, Y. Hu, Z. Gong, J. Jian, Z. Liu
doaj +1 more source