# Supergravitational turbulent thermal convection

@article{Jiang2020SupergravitationalTT, title={Supergravitational turbulent thermal convection}, author={Hechuan Jiang and Xiaojue Zhu and Dongpu Wang and Sander G. Huisman and Chao Sun}, journal={Science Advances}, year={2020}, volume={6} }

A novel system using supergravity opens a new avenue on the exploration of high–Rayleigh number thermal turbulence. High–Rayleigh number convective turbulence is ubiquitous in many natural phenomena and in industries, such as atmospheric circulations, oceanic flows, flows in the fluid core of planets, and energy generations. In this work, we present a novel approach to boost the Rayleigh number in thermal convection by exploiting centrifugal acceleration and rapidly rotating a cylindrical…

## 7 Citations

Evidences for the existence of the ultimate regime in supergravitational turbulent thermal convection

- Physics
- 2021

What is the final state of turbulence when the driving parameter approaches to infinity? For thermal turbulence, in 1962, Kraichnan proposed a so-called ultimate scaling dependence of the heat…

Ekman Layer Scrubbing and Shroud Heat Transfer in Centrifugal Buoyancy-Driven Convection

- Physics
- 2020

This paper presents large-eddy and direct numerical simulations
of buoyancy-driven convection in sealed and open rapidly
rotating cavities for Rayleigh numbers in the range 107–109, and
axial…

Experimental Study of Thermal Convection in a Cylindrical Layer with a Longitudinal Partition at Modulated Rotation

- Physics
- 2021

Thermal convection of a liquid in a simply connected horizontal cylindrical layer rotating at a variable velocity is investigated experimentally. The inner boundary of the layer has a higher…

Coriolis effect on centrifugal buoyancy-driven convection in a thin cylindrical shell

- Journal of Fluid Mechanics
- 2021

Abstract We study the effect of the Coriolis force on centrifugal buoyancy-driven convection in a rotating cylindrical shell with inner cold wall and outer hot wall. This is done by performing direct…

Evaluation and application of advanced CFD models for rotating disc flows

- PhysicsProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
- 2021

This paper addresses limitations of widely used Reynolds-averaged turbulence models (RANS) for prediction of gas turbine internal air systems. Results from direct numerical simulation (DNS),…

Water entry of spheres into a rotating liquid

- PhysicsJournal of Fluid Mechanics
- 2021

Abstract The transient cavity dynamics during water entry of a heavy, non-rotating sphere impacting a rotating pool of liquid is studied experimentally, numerically and theoretically. We show that…

Effects of radius ratio on annular centrifugal Rayleigh–Bénard convection

- PhysicsJournal of Fluid Mechanics
- 2021

Abstract We report on a three-dimensional direct numerical simulation study of flow structure and heat transport in the annular centrifugal Rayleigh–Bénard convection (ACRBC) system, with cold inner…

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