Nonequil. Turbulence
@NonEquilibTurb
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This is the twitter account for the Nonequilibrium Turbulence Research Group. More about us can be found at https://t.co/qOYB4Gpae8
U.K.
Joined October 2016
If you wanna more about reduced-order modeling, check this open access book edited (among others) by Peter Benner (@pebe32). @eigensteve, @BerndRNoack and I also have a chapter in it discussing parametrized POD representation and SINDy for the canonical cylinder flow!
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Just a reminder that Eric Lamballais' seminar is later this afternoon: https://t.co/FCOvHSj82r
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The 4th Nov. LMFL seminar at 16:30 (Paris time) is by Christos Vassilicos and is on "Scalings of scale-by-scale turbulence energy in non-homogeneous turbulence" https://t.co/dQK0YVOf5n
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Delighted to be giving the @mathsleedsuni Fluid Dynamics & MHD seminar tomorrow. My topic is: "Locality and Nonlocality in Turbulence: An Approach to Understanding the Dynamics of the Velocity Gradient Tensor" @FluidsLeeds @CDTFluidsLeeds
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PRFluids Editors' Suggestion: Dynamics of three-dimensional turbulence from Navier-Stokes equations Katepalli R. Sreenivasan and Victor Yakhot Article: https://t.co/0U8x5BqVsI Predicting multi-scaling exponents for singular-like features of different strengths
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An interesting paper on non-equilibrium dissipation and turbulent plumes by Sunita and Layek that colleagues may find of interest: https://t.co/EFfPgznVKU
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Congratulations to Giorgio Parisi on his Nobel Prize for physics. The Frisch-Parisi conjecture is an important result in multifractal analysis with application to turbulence. Stephane Jaffard has a typically elegant summary of this available at https://t.co/kUIkr36P1S
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Really interesting paper by Greg Eyink @JohnsHopkins on the origin of drag/dissipation due to vorticity motions relative to the Eulerian potential flow:
journals.aps.org
A quantum-inspired model explains why objects moving in a fluid experience drag even at high speeds where viscosity should be negligible.
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Our new wind tunnel is now equipped with an active grid and a 3-axis traverse system!
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New paper out by Birgit S. Sützl and @vanReeuwijkLab in collaboration with the Met Office: Distributed urban drag parameterization for sub‐kilometre scale numerical weather prediction https://t.co/HsLZicdv3I
@RMets @ImperialCiveng
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We are looking to hire a Ph.D. student in numerical simulations of turbulence and liquid-infused surfaces. Only 3 days left to apply!
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Cool opportunity in our lab! Facility development, laser-based measurements, data analysis and possibly modelling!
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TSFP12 will hopefully be taking place in-person in July 2022. The 11th edition in Southampton was great. Osaka is a fantastic city with amazing food so hoping it goes ahead for all those lucky enough to get funding to attend such things. https://t.co/YYigqCLz1E
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Join @FluidsLeeds and @UKFluidsNetwork virtually on 15th September 16.00-17.30 to hear from representatives from BEIS, Met Office, RAEng, Industry and the UKRI on the launch of a new report into the value of fluid dynamics in the UK. Book your place here: https://t.co/b7iPq58WVX
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Great to see the work on boundary-layer structure by @NonEquilibTurb researcher Yongyun Hwang @aeroimperial featuring in the keynote by Ivan Marusic @unimelb for the @IAHR session:
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An interesting new paper in @PhysRevFluids on the nonequilibrium turbulence cascade. At ~infinite Re equilibrium arises close to the Taylor scale but there is a departure away from this scale, particularly at larger scales towards the integral scale. https://t.co/6VdbtXQ6ch
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Data-driven procrastination: Ulam-Galerkin regression of the Perron-Frobenius operator for the Ornstein-Uhlenbeck process. Discretizing space using only 13 indicators functions provides a fairly good approx. of these eigenfunctions (which we know analytically for this case).
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