Owen Williams (@WilliamsFluids) header
Owen Williams (@WilliamsFluids) profile picture

Assistant Research Professor @UW examining problems in fluid dynamics and turbulence in support of the aerospace and energy sectors.

University of Washington
Joined December 2019
Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)Photo by Owen Williams (@WilliamsFluids)
I will not be at #apsdfd2022 this year unfortunately. But my group and collaborators will be represented! Come check out our talks on three very different subjects. See thread below for more details.
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Kevin Manohar - Z24.00003 - Sensor-based Temporal Super-Resolution for Turbulent Separated Flows. The low and mid-frequency unsteadiness of the separation bubble on the "speed-bump" geometry is explored using machined-learned technique linking surface pressures to the flow field.
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Han Lee - U10.00010 - Compressible Boundary Layer Velocity Transformation Based on a Generalized Form of the Total Stress We find that viscous fluctuations are important to the near-wall shear stress balance in hypersonic BLs and use this to propose a new mean velocity transform
Let's dive deep into what Harris Hydraulic Laboratory @UW is doing for a @UWMadison experiment from RFTS 3: turbines, flumes, lasers, and a heaping helping of data analysis. How can turbines most efficiently be organized in an array? #marineenergy #flume #lasers #turbines
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While I will not be at #apsdfd this year, my group is! Abigale Snortland - Exploring intercycle variation of cross-flow turbine hydrodynamics (F24) Kevin Manohar (colab w U.Calgary) - Discussing temporal super-resolution of PIV flowfields using auxillary sensors and NNs (H23).
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New equipment in the lab! LDV system to explore turbine hydrodynamics. Alignment of the probes is proving a challenge but we are going to get some cool data with this. #FlumeFriday.
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A free diver captured the moment when two bubble rings collided, dissolving into each other to form one larger circle.
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We are attending AIAA SciTech virtually this year! Showing extensive new results for the Gaussian speed-bump turbulent separated flow geometry. Come check out our two talks and papers.
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Robbins et al (2021) - Overview of validation completeness for gaussian speed-bump separated flow experiments CFD Methods VIII Thursday, 14 January 13:00 - 14:15 EST (UTC-5)
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Williams et al (2021) - Characterization of separated flowfield over Gaussian speed-bump CFD validation geometry Turbulent Flows III Wednesday, 20 January 10:00 - 11:15 EST (UTC-5)
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Excited to share that our team from UW was one those selected under the SHARKS program! We will be optimizing cross-flow turbine design and control for high-confinement arrays, aiming to greatly reduce their levelized cost of energy.
Earlier this week, we announced selections under our 🦈SHARKS 🦈 program, 11 projects working to design the future of hydrokinetic generation systems for riverine and tidal currents! bit.ly/360SgHi
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Very useful summary!
Now online: Collection of papers associated with the invited talks presented at the 2019 #apsdfd meeting in Seattle go.aps.org/3nMyx46
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Come check out our exciting new results at #apsdfd2020! Y09:8: Large-field PIV measurements of turbulent separation zone P18:21: Automated Identification of Vortex properties using Bayesian approach F04:7: Supersonic retropropulsion flowfield dynamics
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Sahil Kommalapati talked about his work to extract structure from turbulent flowfield data using a bayesian matching approach.
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And I presented a summary of ongoing analysis of supersonic retropropulsion dynamics and scaling.
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Owen Williams retweeted
Nice thread on the #aerodynamics phenomenon that is being made use of by @UoNAerospace 2nd year students in their integrating project: design, make & test of a ground effect vehicle teapawt.net/Aero_Jenna/status/1222…
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Chaos, fractals, bifurcations, fluids example... what’s not to like about this! Thanks for sharing @WilliamsFluids youtu.be/ovJcsL7vyrk #FluidDynamics #stem
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"We’ve only been landing robots on Mars smaller and way lighter than a Mini Cooper," says recent @UW master's graduate Charlie Yang. @UWaeroastro researchers are working on an approach to landing larger spacecraft: aa.washington.edu/news/artic… | #UWinnovates
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