Results 31 to 40 of about 5,070,033 (225)

Turbulence Modification by Superhydrophobic Bluff Body

, 2023
This paper investigates the impact of superhydrophobicity on turbulent flow characteristics, drag force, and lift forcethrough numerical simulations. A superhydrophobicity boundary condition is implemented on the surface of a sphere, altering the fluid-solid interaction, and introducing air pockets within the superhydrophobic texture.
Eckhard Mayer, Tielo Schulte
openaire   +1 more source

Analysis of transport processes in a reacting flow of hybrid nanofluid around a bluff-body embedded in porous media using artificial neural network and particle swarm optimization

Journal of Molecular Liquids, 2020
This paper investigates heat and mass transfer in a hybrid nanofluid flow impinging upon a cylindrical bluff-body embedded in porous media and featuring homogenous and heterogeneous chemical reactions.
J. M. N. Abad, Rasool Alizadeh, A. Fattahi, M. H. Doranehgard, Ebrahim Alhajri, N. Karimi   +5 more
semanticscholar   +1 more source

There Is Plenty of Room inside a Bluff Body: A Hybrid Piezoelectric and Electromagnetic Wind Energy Harvester

Energies, 2022
In this paper, a piezoelectric and electromagnetic hybrid wind energy harvester is proposed. The general design of the harvester comprises multiple cantilever piezoelectric energy harvesters (PEHs) and electromagnetic energy harvesters (EEHs) embedded ...
Mahmood Al-Riyami, Issam Bahadur, Hassen Ouakad   +2 more
doaj   +1 more source

Mixing and combustion performance of the mixing-enhanced flame stabilizer with close-coupled gaseous fuel injection

Energy Reports, 2023
Mixing of fuel and air is important for improving combustion performance and reducing pollution emissions. To improve the mixing performance of gaseous methane and air, the typical flame stabilizer was modified. A numerical study was conducted to compare
Naijian Bai, Weijun Fan, Rongchun Zhang
doaj   +1 more source

Bluff body uses deep-reinforcement-learning trained active flow control to achieve hydrodynamic stealth [PDF]

The Physics of Fluids, 2020
We propose a novel active-flow-control (AFC) strategy for bluff bodies to hide their hydrodynamic traces from predators. A group of windward-suction-leeward-blowing (WSLB) actuators are adopted to control the wake of a circular cylinder submerged in a ...
Feng Ren, Chenglei Wang, Hui Tang
semanticscholar   +1 more source

Experimental Research of Symmetrical Airfoil Piezoelectric Energy Harvester Excited by Vortex-Induced Flutter Coupling

Applied Sciences, 2022
In order to solve the problem of self-energy supply of vehicle-mounted micro-sensors, bridge detection and some other low-power electronic devices in their working state, a vortex-induced flutter composite nonlinear piezoelectric energy harvester (VFPEH)
Xia Li, Xiaoxiao Wang, Haigang Tian, Chengming Wang, Benxue Liu   +4 more
doaj   +1 more source

Numerical investigation of bluff body shapes and position to enhance heat transfer in double forward-facing step flow

Results in Engineering
A two-dimensional, incompressible, steady-state turbulent flow in a double forward-facing step involving forced convection is considered for numerical investigation. A passive method was attempted to enhance heat transfer with the help of a pair of bluff
Amogh Ashwin Toi, P. Rajesh Kanna, Ansh Parihar, Shashank Rathi, Siddamsetti Shubhang Sai, A. Satheesh   +5 more
doaj   +1 more source

Novel optimization strategy of a flow-induced piezoelectric vibration-based energy harvesting structure

e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
In this paper, a novel boundary layer enhancement structure as well as various bluff body arrangement strategies were proposed to optimize the voltage output performance of a piezoelectric vibration-based energy harvest equipment.
Tuo Hou, Yiwei Jiang, Jing Wang, Yong Ren   +3 more
doaj   +1 more source

Investigation of Bluff Body Size Effects on Piezoelectric Performance Using Flow-Induced Vibration

Engineering Proceedings
An experimental analysis of the effect of size variation for a cylindrical-shaped bluff body in flow-induced vibration (FIV) for the purposes of harvesting ambient energy is explored in this study.
Muhammad Mahad Shah, Moeen Mahboob, Usman Latif, Emad Uddin, Muhammad Rizwan Siddiqui, Muhammad Zulfiqar   +5 more
doaj   +1 more source

Gleaning the Rocky Shore? 2500 Years of Coastal Resource Use at Red Bluff 1, GunaiKurnai Country, SE Australia

Archaeology in Oceania, EarlyView.
ABSTRACT Shell middens in Gippsland along the eastern half of Victoria's coastline have usually been characterised as small, short‐duration camp sites with relatively low shell densities and low taxonomic diversity. Here we present new excavation results from a dense, high‐diversity site at Red Bluff near the eastern end of GunaiKurnai Country, a ...
Patrick Faulkner, Bruno David, David M. Kennedy, Fiona Petchey, Joanna Fresløv, Ashleigh J. Rogers, Jillian Garvey, Rachel Kirby, Runjie Yuan, Russell Mullett, John Stanisic, Kyne Krusic‐Golub, V. Ruth Pullin, Matthew C. McDowell, Robert J. Skelly, Anthony Romano, Vanessa N. L. Wong, GunaiKurnai Land and Waters Aboriginal Corporation   +17 more
wiley   +1 more source