Discussion of “Energy Dissipation and Turbulent Production in Weak Hydraulic Jumps” by E. Mignot and R. Cienfuegos

The authors reported experimental results on the spatial evolution of turbulent kinetic energy and turbulence production in free weak hydraulic jumps. They performed turbulence measurements using two different 16 MHz SonTek/YSI microacoustic Doppler velocimeters (ADVs) on hydraulic jumps for inflow...

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Bibliographic Details
Authors: Romagnoli, Martín, Garcia Rodriguez, Carlos Marcelo, Lopardo, Raúl Antonio
Format: article
Status:Published version
Publication Date:2011
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/29265
Online Access:http://hdl.handle.net/11336/29265
Access Level:Open access
Keyword:Acoustic Doppler Velocimeter
Turbulence
Hydraulic Jump
https://purl.org/becyt/ford/2.1
https://purl.org/becyt/ford/2
Description
Summary:The authors reported experimental results on the spatial evolution of turbulent kinetic energy and turbulence production in free weak hydraulic jumps. They performed turbulence measurements using two different 16 MHz SonTek/YSI microacoustic Doppler velocimeters (ADVs) on hydraulic jumps for inflow Froude numbers (F1) of 1.3, 1.9, and 2 [F1 ¼ U1=ðz1gÞ0:5, where U1 = inflow mean velocity; z1 = supercritical depth; and g = gravitational acceleration]. Herein the discussers aim to complement the authors’ analysis by using a new independent data set and by arguing both the bias on the estimated values of turbulent kinetic energy because of the effects of the ADV sampling strategy and the uncertainty on the experimental determination of the turbulence production term.