Enhancing the Performance of Piezoelectric Wind Energy Harvester Using Curve‐Shaped Attachments on the Bluff Body [PDF]
Global Challenges, 2023 This paper presents a piezoelectric wind energy harvester that operates by a galloping mechanism with different shaped attachments attached to a bluff body.
Prakash Poudel +7 more
doaj +2 more sources
Experimental investigation of bluff body geometry effects on nitrogen oxides emissions from Cambridge stratified burner [PDF]
Scientific ReportsIn this study, a series of experiments are done to analyze the effect of bluff body geometry on the NOx reduction of a natural gas-air stratified swirl burner.
Morteza Nahvi +3 more
doaj +2 more sources
Dragonfly-Wing-Inspired Bluff-Body Piezoelectric Harvester for Efficient Low-Wind-Speed Energy Harvesting [PDF]
MicromachinesInspired by the wing-opening morphology of dragonflies, a series of bio-inspired dragonfly-shaped bluff bodies are designed and investigated, and further integrated into a piezoelectric wind energy harvester.
Zhiyong Zhou +3 more
doaj +2 more sources
Experimental studies of the effects of hydrophobic coatings on flow separation around 3D bluff bodies [PDF]
Advances in AerodynamicsThis study explores how hydrophobic coating influences the structure of the flow separation at the rear end of 3D bluff bodies. Two 3D representative bluff bodies, namely the standard Ahmed body (SAB), which features flow separation and reattachment at ...
Naseeb Ahmed Siddiqui +1 more
doaj +2 more sources
Flow past a bluff body subjected to lower subcritical Reynolds number
Journal of Ocean Engineering and Science, 2020 The paper aimed to study the flow structure at the wake of the bluff body with altered blockage ratio (BR) keeping the fixed aspect ratio (AR). The study was conducted by a finite volume technique using commercial software Ansys-Fluent.
Pankaj Kumar, Santosh Kumar Singh
doaj +3 more sources
A comparative study of gaseous fuel flame characteristics for different bluff body geometries
Case Studies in Thermal Engineering, 2022 Flame stabilization by a bluff-body is commonly used in many combustion applications to improve mixture characteristics, enhance flame stability and assist in combustion control.
I.A. Ibrahim +3 more
doaj +1 more source
Energy Conversion and Management: X, 2022 Vortex-induced vibration (VIV) is an appropriate mechanism to harvest energy from the low-speed wind energy by flexible piezoelectric flags as transducers.
Iman Mehdipour +3 more
doaj +1 more source
Jet flow control by synchronous drive of two DBD-PAs in nozzle and on bluff body
Journal of Fluid Science and Technology, 2023 In this study, two dielectric barrier discharge plasma actuators (DBD-PAs) are driven at different times to control a circular jet flow. DBD-PA was installed inside a nozzle and on a disk-shaped bluff body above the nozzle.
Masato AKIMOTO +2 more
doaj +1 more source
Improving the performance of galloping energy harvester with striped bluff body
AIP Advances, 2023 To improve the performance and efficiency of ordinary galloping energy harvesters (GEHs), this paper proposes a GEH with a striped bluff body. The fluid-structure coupling simulation of the bluff body and the oscillator of the energy harvester was ...
Hai Wang +5 more
doaj +1 more source
Pilot study about the micro hydropower generation by use of flow induced vibration phenomenon [PDF]
EPJ Web of Conferences, 2018 In order to construct a micro power generation system using a piezo-electric element, power generation was tried using excitation oscillation of the bluff cylinder by the vortex shedding from the bluff cylinder.
Yokoi Yoshifumi
doaj +2 more sources