Miles Chan - Three Minute Thesis - 4/25/2023

which you bought to go on spring break vacation is principally due to the cost of the fuel required to overcome aerodynamic drag half of which is due to the turbulence on a much smaller scale the fine scale is very close to a surface in my PhD work I focus on modeling and analyzing the smallest scales of treyboys very close to a surface this near wall turbulence

is very important because it sets the dynamic behavior of the larger structures farther away from the wall this near wall turbulence is very susceptible to the shape and texture of the surface underlying it the near wall Cherry Points has historically been very difficult to study because it is very difficult impossible to Place Large physical probes very close to the surface it's not possible to capture those

fluctuations and it is a testament to human Ingenuity that we have any physical Insight at all due to the extreme difficulty of actually capturing any sort of data in experiments by looking at the governing equations and incomplete data from experiments we have been able to form some ideas of what's going on but ultimately we have been fundamentally missing a complete picture of the flow and this

is why I am excited about my work because with advances in computational capability we have the ability to form some fully resolved data sets and by interrogating those data sets I can identify Trends relationships between the flow response and the roughness which we were not able to find before and I can combine this with the physical insights from scientists of the past to form new models

to train new models which can extrapolate from the simpler flows that we study as Engineers to the more complicated flows which Engineers actually have to deal with on a day-to-day basis models which run in minutes rather than months fundamentally changes to the game it enables simulations to take a larger role in the design process of Aerospace vehicles and that enables More Design innovation and enables more

environmentally friendly designs in addition a greater fundamental understanding of the phenomena of turbulence opens the possibility of control and mitigation which could reduce the greenhouse gas emissions of Transportation by as much as 50 percent solving turbulence would make the world a better place and that is why I do this thank you