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Beauty in Chaos

October 2017

A discussion of chaos, turbulence, and patterns, written in accessible language. Available courtesy of Caltech Letters.

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Teaching

I have a passion for teaching that I have pursued throughout my graduate career both as a teaching assistant and as a personal tutor. I have additionally taken a class on the theory of university teaching, with emphasis on active learning. 

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As a hopeful professor in engineering, the skills that I am most interested in strengthening in my students are a comfort translating between physical phenomena and mathematical equations, and a confidence in problem solving, both on their own ("figuring it out") and with others ("helping and being helped").

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Turbulent intermittency

Experimentally investigate intermittent events in turbulent flows.

Applications: failure prevention in rotating blades, drag reduction, gust management

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Reduced order modeling

Represent unsteady, nonlinear interactions in turbulent flows using reduced dynamical systems.

Applications: flow control, wall-modeling for large eddy simulation (LES).

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Maneuvering

Experimentally investigate turbulent flows accelerating and decelerating.

Applications: turning maneuvers, take-off, and landing.

Vision

The interaction of unsteady dynamics with turbulent phenomena provides an opportunity for the improvement of efficiency and maneuverability in transportation and energy technologies.

Coherent structures, uniform momentum zones, and the streamwise energy spectrum in wall-bounded turbulent flows

T. Saxton-Fox & B. J. McKeon
Journal of Fluid Mechanics (JFM) Rapids
September 2017

An investigation into the structure of large scale motions (LSMs) and uniform momentum zones in a turbulent boundary layer. A traveling wave model is proposed and is compared to instantaneous, experimental data.

Modeling momentum and scalar transport in a wall-bounded turbulent flow

T. Saxton-Fox & B. J. McKeon
The Proceedings of the International Congress of Turbulence and Shear Flow Phenomena (TSFP)
April 2017

The relationship between the velocity and scalar fields in a turbulent boundary layer is experimentally investigated using a novel conditional averaging technique. The findings show that the interaction of velocity scales affects scalar transport.

Scale interactions and 3D critical layers in wall-bounded turbulent flows

T. Saxton-Fox & B. McKeon
International Congress of Theoretical and Applied Mathematics (ICTAM) Proceedings
August 2016

A potential relationship between the interaction of large and small scales in turbulence and the asymptotic theory of critical layers is explored. Implications for the self-sustaining nature of turbulence are suggested.

Published Work

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Bio

I am a postdoctoral researcher at Princeton, studying the effect of variable pressure gradients on turbulent pipe flow with Professor Marcus Hultmark. Prior to this appointment, I was a graduate student at Caltech, studying coherent velocity structures and their interactions in turbulent boundary layers through experimentation and modeling with Professor Beverley McKeon. I did my undergraduate studies at MIT in Mechanical Engineering.

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Unsteady turbulent interactions

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