John Elsnab

DEVELOPMENT OF DRAG-REDUCED TURBULENT BOUNDARY LAYERS ON SMOOTH WALLS WITH DIFFERENT POLYMER CONCENTRATIONS

MG AbdElKader, JR Elsnab, N Hutchins, JP Monty

Conference Proceedings  |  2022  |  12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022

High-fidelity measurements in channel flow with polymer wall injection

John R Elsnab, Jason P Monty, Christopher M White, Manoochehr M Koochesfahani, Joseph C Klewicki

Journal article  |  2019  |  JOURNAL OF FLUID MECHANICS

Streamwise velocity profiles and their wall-normal derivatives were used to investigate the properties of turbulent channel flow i..

Turbulence production in the low polymer drag reduction regime

JR Elsnab, CM White, JC Klewicki

Conference Proceedings  |  2019  |  iTi Conference on Turbulence

Streamwise velocity profiles and their wall-normal derivatives were used to investigate the properties of turbulent channel flow i..

An experimental comparison of velocities underneath focussed breaking waves

Alberto Alberello, Amin Chabchoub, Jason P Monty, Filippo Nelli, Jung Hoon Lee, John Elsnab, Alessandro Toffoli

Journal article  |  2018  |  OCEAN ENGINEERING

Nonlinear wave interactions affect the evolution of steep wave groups, their breaking and the associated kinematic field. Laborato..

Vortex Rings in a Stratified Fluid

J Elsnab, M Zhen, J Philip, J Klewicki

Conference Proceedings  |  2018

The motion of vortex rings propagating horizontally in a linearly stratified medium is investigated using time-resolved planar par..

Efficacy of single-component MTV to measure turbulent wall-flow velocity derivative profiles at high resolution

John R Elsnab, Jason P Monty, Christopher M White, Manoochehr M Koochesfahani, Joseph C Klewicki

Journal article  |  2017  |  EXPERIMENTS IN FLUIDS

Physical interpretations and especially analytical considerations benefit from the ability to accurately estimate derivatives of e..

Estimation of Kinetic Energy Dissipation from Breaking Waves in the Wave Crest Region

JH Lee, JP Monty, J Elsnab, A Toffoli, AV Babanin, A Alberello

Journal article  |  2017  |  JOURNAL OF PHYSICAL OCEANOGRAPHY

Wave-induced turbulence due to breaking in the absence of surface shear stresses is investigated experimentally. A high-fidelity p..

Time Resolved PIV Measurements of the Flow Field Associated With the Interaction of Concentrated and Distributed Vorticity

HU Ain, JR Elsnab, J KLEWICKI

Conference Proceedings  |  2016

Time resolved particle image velocimetry was used to investigate new aspects of the flow field associated with a vortex ring/ movi..

THE VELOCITY FIELD UNDERNEATH LINEAR AND NONLINEAR BREAKING ROGUE WAVES

Alberto Alberello, Amin Chabchoub, Alexander V Babanin, Jason P Monty, John Elsnab, Jung H Lee, Elzbieta M Bitner-Gregersen, Alessandro Toffoli

Conference Proceedings  |  2016  |  PROCEEDINGS OF THE ASME 35TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING , 2016, VOL 3

During the past decades, a large number of waves of extreme height and abnormal shape, also known as freak or rogue waves, have be..

Sea ice floes dissipate the energy of steep ocean waves

A Toffoli, LG Bennetts, MH Meylan, C Cavaliere, A Alberello, J Elsnab, JP Monty

Journal article  |  2015  |  GEOPHYSICAL RESEARCH LETTERS

A laboratory experimental model of an incident ocean wave interacting with an ice floe is used to validate the canonical, solitary..