Advances in Flow Control Methods for Pump-Stall Suppression: Passive and Active Approaches
EnergiesThis article provides a comprehensive review of key approaches to suppressing stall flow in pumps, offering insights to enhance pump performance and reliability.
Hongbo Zhao +5 more
doaj +2 more sources
Active and Passive Flow Control around Simplified Ground Vehicles
Journal of Applied Fluid Mechanics, 2012 The aim of this work is to control the flow around ground vehicles by active or/and passive strategies. The active control is achieved by steady, pulsed or closed-loop jets located at the backof the simplified car model.
C.H Bruneau +4 more
doaj +2 more sources
Comparison of Passive Flow Control Methods for a Cavity in Transonic Flow [PDF]
Journal of Aircraft, 2016 A comparative study of different passive control techniques was conducted on a cavity with a length of 320 mm with length-to-depth and length-to-width ratios of five and two, respectively. The tests were conducted at a freestream Mach number of 0.71. Both leading-edge and trailing-edge modifications were included in the studies.
Saddington, A. J. +2 more
openaire +2 more sources
Control of Turbulent Flow over a Circular Cylinder Using Tabs
Mathematics, 2023 In this study, we investigate tabs applied to turbulent flow over a circular cylinder for the reductions of the mean drag and lift fluctuations. Tabs are small and thin passive devices attached to the upper and lower surfaces of a circular cylinder near ...
Junyoung Seo, Jinhyeok Yun, Jungil Lee
doaj +1 more source
ACarleton/Kirigami-sheets-for-passive-flow-control: Kirigami sheets for passive flow control
, 2023 Data repository Full Changelog: https://github.com/ACarleton/Kirigami-sheets-for-passive-flow-control/commits ...
ACarleton
core +1 more source
The control of the displacement of a passive particle in a point vortex flow
Journal of Computational Methods in Sciences and Engineering, 2021 This work reports numerical explorations in advection of one passive tracer by point vortices living in the unbounded plane. The main objective is to find the energy-optimal displacement of one passive particle (point vortex with zero circulation) surrounded by N point vortices. The direct formulation of the corresponding control problems is presented.
Balsa, Carlos, Gama, Sílvio M.A.
openaire +2 more sources
Study of the passive flow control in aerodynamic devices
, 2018 To study different passive flow control mechanisms for delay separation and increase the performance of aerodynamic devices by means of CFD techniques. The idea behind flow control is to improve aerodynamic performance of air and ground vehicles and reduce the drag.
Guiu Soler, David
core +4 more sources
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
Nonlinear control of unsteady finite-amplitude perturbations in the Blasius boundary-layer flow [PDF]
, 2013 The present work provides an optimal control strategy, based on the nonlinear Navier–Stokes equations, aimed at hampering the rapid growth of unsteady finite-amplitude perturbations in a Blasius boundary-layer flow.
DE PALMA, Pietro +2 more
core +1 more source
Investigation of passive flow control techniques to enhance the stall characteristics of a microlight aircraft [PDF]
, 2013 This report investigates the enhancement of aerodynamic stall characteristics of a Skyranger microlight aircraft by the use of passive flow control techniques, namely vortex generators and turbulators.
Mwenegoha, HA, Jabbal, M
core +1 more source