51吃瓜网

For:

Theoretical Fluid Mechanics

• Home
• Research topics
  • Turbulent drag reduction
  • Streaks in turbulence
  • Linearsied NSE and turbulence
  • Effect of large-scale motions on near-wall turbulence
  • Sum of squares
  • High-Reynolds-number asymptotics of steady separated flows
  • Flows with trapped vortices
  • Aerostatic platforms
  • Centrifuges
• Flow Illustrator
• Miscellaneous
• Want a PhD? Read this

Research topics

Near-wall turbulence

• Turbulent drag reduction
• Organised structures in turbulence
  • Formation of streaks
  • Using linearsied Navier-Stokes equations in developed turbulence
• Effect of large-scale motions on near-wall turbulence

Polynomial Sum-Of-Squares (SOS) approach in fluid dynamics

• Brief summary
• A dedicated website

Easy-to-use Navier-Stokes solvers

Internal site:
• Images as the input format for a Navier-Stokes solver
External site:

Selected topics of past research

• High-Reynolds-number asymptotics of steady separated flows
• Flows with trapped vortices
• Nonlinear stability of aerostatic platforms
• Centrifuges with hydraulic drive

More

• More mathematical
  • The problem of turbulence
  • Existence and uniqueness of the solutions of the Navier-Stokes equations
  • Complex-valued solutions of the Navier-Stokes equations
  • Flow control
  • Tikhonov regularisation in discrete vortex methods
  • Dust-laden gas flow
  • Master-modes
  • Computer expanded series
  • Three-dimensional separation
• More applied
  • Rotating stall in axial compressors
  • Turbulent supersonic separated flows with heat and mass injection in the separation region

Timeline:

• Will be in Lille 11-12 December 2025. On 12th, will give a talk at (Note the non-standard time, 2pm!).
• Attended and gave a plenary talk at , Aligarh (U.P), India, 20-23 December 2024.
• Attended the at the , Germany 28 July - 2 August 2024.
• Gave a talk on at the .
• Gave a talk on Bounding time averages: a road to solving the problem of turbulence at Institut de Mathématiques de Bordeaux, Bordeaux, May 4, 2023.
• Gave a talk on at Institut Pprime, Bordeaux on May 3, 2023.
• Talk at Department of Engineering, University of Cambridge, 4 November 2022, as part of the CUED Fluids seminar series, video: Joint work with Owen Tutty and Hanying Yang.
• On August 15, 2022, gave (online) an invited talk "On the path to solving the problem of turbulence" at the
• On July 22, 2022, gave (online) a talk "Bounds for time averages: towards solving the problem of turbulence" at the
• In January-April 2022 was a long-term participant of the . Gave two talks: and .
• Gave a talk Auxiliary functionals: a path to solving the problem of turbulence at on March 4, 2021. Links to and .
• Gave a talk on at IPAM, Wednesday, January 13, 2021, as part of the workshop on Transport and Mixing in Complex and Turbulent Flows. Great talks, all recorded, highly recommended.
• Gave a talk Accelerating time averaging at 73rd Annual Meeting of the APS Division of Fluid Dynamics, November 22, 2020: and video.
• 2020: the virus ... living online ... most of the year working on additional administration and teaching related to the pandemic ...
• Gave a talk at , Snowbird, Utah, U.S, May 19 - 23, 2019.
• Gave a keynote lecture at the workshop , The Fields Institute, Toronto, April 15-18, 2019.
• Gave a talk at 26-29 March 2019, Haus der Kirche, Bad Herrenalb, Germany.
• Gave a seminar talk on Accelerating time averaging using auxiliary functions at the Aerodynamics and Flight Mechanics group seminar, University of Southampton, on 6 February 2019
• Visited the in September 13-30, 2018.
• Attended , London, August 29-31, 2018, with a talk Large-scale motions for the QSQH theory (with Chi Zhang).
• Gave a talk on Questions concerning quasi-steady mechanism of the Reynolds number, pressure gradient, and geometry effect on drag reduction at the Aachen, Germany, 15-16 March 2018.
• Gave a lecture course , with Giovanni Fantuzzi providing exercise sessions, at

 

Sergei Chernyshenko