Results 31 to 40 of about 1,024,804 (310)
Active flow control on airfoils by reinforcement learning
Ocean Engineering, 2023 Active flow control is a widespread practice for airfoil aerodynamic performance enhancement. Within active flow control, reactive strategies are very effective, but the adequate design of these strategies is often complex. This study proposes a reactive control strategy based on a Reinforcement Learning (RL) agent to effectively govern the motion of a
Koldo Portal-Porras +4 more
openaire +2 more sources
Trailing Edge Noise Reduction by Passive and Active Flow Controls [PDF]
, 2014 This paper presents the results on the use of porous metal foams (passive control) and dielectric barrier surface plasma actuations (active control) for the reduction of vortex shedding tonal noises from the nonflat plate type trailing edge serration in ...
Kim, JH +7 more
core +1 more source
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 +1 more source
FluidsHigh-speed train aerodynamics have mainly been improved by passive design methods, such as streamlined noses, local fairings, and surface smoothing. These methods have achieved clear benefits, but several important aerodynamic problems remain difficult ...
Li Sheng +4 more
doaj +1 more source
Performance Assessment of Fluidic Oscillators Tested on the NASA Hump Model
Fluids, 2021 Flow separation control over a wall-mounted hump model was studied experimentally to assess the performance of fluidic oscillators (sweeping jet actuators). An array of fluidic oscillators was used to control flow separation.
Mehti Koklu
doaj +1 more source
Active flow control systems architectures for civil transport aircraft
, 2010 Copyright @ 2010 American Institute of Aeronautics and AstronauticsThis paper considers the effect of choice of actuator technology and associated power systems architecture on the mass cost and power consumption of implementing active flow control ...
Crowther, W. J.; id_orcid +9 more
core +1 more source
Actuators, 2023 This study examined how various plasma actuator (PA) configurations affect the passage vortex (PV) reduction in a linear turbine cascade (LTC) utilizing dielectric barrier discharge PAs.
Takayuki Matsunuma, Takehiko Segawa
doaj +1 more source
Active control of hydrodynamic slug flow [PDF]
, 2013 Multiphase flow is associated with concurrent flow of more than one phase (gas-liquid, liquid-solid, or gas-liquid-solid) in a conduit. The simultaneous flow of these phases in a flow line, may initiate a slug flow in the pipeline. Hydrodynamic slug flow
Inyiama, Fidelis Chidozie
core
Large scale separation flow control experiments within the German Flow Control Network
, 2009 This is an overview on flow control experiments for flow separation control conducted in the DNW-NWB atmospheric low-speed wind tunnel performed within the German Flow Control Network. Emphasis is given on the experimental setup using the DLR F15 wall-to-
Wild, Jochen +9 more
core +1 more source
Special Issue “Active Flow Control Processes with Machine Learning and the Internet of Things”
, 2023 The desired changes in flow characteristics are obtained by flow control, which implies manipulating flow behavior such as drag reduction, mixing augmentation, or noise attenuation, employing active or passive devices [...
Valentina Emilia Balas +2 more
core +1 more source