Nicholas Hutchins

Experimental study of a turbulent boundary layer with a rough-to-smooth change in surface conditions at high Reynolds numbers

Mogeng Li, Charitha M de Silva, Daniel Chung, Dale Pullin, Ivan Marusic, Nicholas Hutchins

Journal article  |  2021  |  JOURNAL OF FLUID MECHANICS

This study presents an experimental dataset documenting the evolution of a turbulent boundary layer downstream of a rough-to-smoot..

Dispersive stresses in turbulent flow over riblets

D Modesti, S Endrikat, N Hutchins, D Chung

Journal article  |  2021  |  Journal of Fluid Mechanics

We carry out direct numerical simulations of turbulent flow over riblets, streamwise- aligned grooves that are designed to reduce ..

Prograde vortices, internal shear layers and the Taylor microscale in high-Reynolds-number turbulent boundary layers

Michael Heisel, Charitha M de Silva, Nicholas Hutchins, Ivan Marusic, Michele Guala

Journal article  |  2021  |  JOURNAL OF FLUID MECHANICS

The statistical properties of prograde spanwise vortex cores and internal shear layers (ISLs) are evaluated for a series of high-R..

The effect of cleaning and repainting on the ship drag penalty

IKAP Utama, B Nugroho, M Yusuf, FA Prasetyo, ML Hakim, IK Suastika, B Ganapathisubramani, N Hutchins, JP Monty

Journal article  |  2021  |  BIOFOULING

Although the hull of a recently dry-docked large ship is expected to be relatively smooth, surface scanning and experimentation re..

Spanwise velocity statistics in high-Reynolds-number turbulent boundary layers

R Baidya, J Philip, N Hutchins, JP Monty, I Marusic

Journal article  |  2021  |  JOURNAL OF FLUID MECHANICS

Spanwise velocity statistics from high-Reynolds-number turbulent boundary layers are reported. The dataset combines efforts spanni..

Influence of riblet shapes on the occurrence of Kelvin-Helmholtz rollers

S Endrikat, D Modesti, R Garcia-Mayoral, N Hutchins, D Chung

Journal article  |  2021  |  JOURNAL OF FLUID MECHANICS

We investigate turbulent flow over streamwise-aligned riblets (grooves) of various shapes and sizes. Small riblets with spacings o..

Non-k-type behaviour of roughness when in-plane wavelength approaches the boundary layer thickness

B Nugroho, JP Monty, IKAP Utama, B Ganapathisubramani, N Hutchins

Journal article  |  2021  |  JOURNAL OF FLUID MECHANICS

A surface roughness from a recently cleaned and painted ship's hull was scanned, scaled and replicated for laboratory testing to s..

Aerosolisation in endonasal endoscopic pituitary surgery

Rana S Dhillon, Lana Nguyen, Wagih Abu Rowin, Ruhi S Humphries, Kevin Kevin, Jason D Ward, Andrew Yule, Tuong D Phan, Yi Chen Zhao, David Wynne, Peter M McNeill, Nicholas Hutchins, David A Scott

Journal article  |  2021  |  PITUITARY

PURPOSE: To determine the particle size, concentration, airborne duration and spread during endoscopic endonasal pituitary surgery..

Predicting the Drag of Rough Surfaces

Daniel Chung, Nicholas Hutchins, Michael P Schultz, Karen A Flack

Journal article  |  2021  |  ANNUAL REVIEW OF FLUID MECHANICS, VOL 53

Reliable full-scale prediction of drag due to rough wall-bounded turbulent fluid flow remains a challenge. Currently, the uncertai..

Nasal preparation with local anesthetic should be considered an aerosol-generating procedure

Rana S Dhillon, Lana V Nguyen, Wagih Abu Rowin, Ruhi S Humphries, Kevin Kevin, Jason D Ward, Andrew Yule, Tuong D Phan, David Wynne, Peter M McNeill, Nicholas Hutchins, David A Scott, Yi Chen Zhao

Journal article  |  2020  |  INTERNATIONAL FORUM OF ALLERGY & RHINOLOGY