Electrochemical Measurements for Real-Time Stochastic Reconstruction of Large-Scale Dynamics of a Separated Flow - Archive ouverte HAL Access content directly
Journal Articles Journal of Fluids Engineering Year : 2016

Electrochemical Measurements for Real-Time Stochastic Reconstruction of Large-Scale Dynamics of a Separated Flow

, , , , (1) , (1) , (1)
1

Abstract

The ability of electrochemical sensors to properly measure wall shear stress is here considered for using these sensors as potential candidates for time-resolved estimation of the large-scale activity occurring in the flow separation region downstream of a bump. The inflow Reynolds number considered, based on the channel full height and the incoming bulk velocity, is Reb= 1735. The methodology implemented consists in combining the electrochemical sensors with particle image velocimetry (PIV) measurements and to build a model estimate of a low-order representation of the flow field. The model estimate is based on a multitime reformulation of the complementary technique. The present paper shows the potential of electrochemical sensors for properly resolving the low-frequency flapping mode whose control was recently shown to be a potential candidate to significantly reduce separation.
Not file

Dates and versions

hal-03462064 , version 1 (01-12-2021)

Identifiers

Cite

Fawzi Fadla, Anthony Graziani, Franck Kerherve, Romain Mathis, Marc Lippert, et al.. Electrochemical Measurements for Real-Time Stochastic Reconstruction of Large-Scale Dynamics of a Separated Flow. Journal of Fluids Engineering, 2016, 138 (12), ⟨10.1115/1.4034198⟩. ⟨hal-03462064⟩
11 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More