Physics of Fluids - Publications

Supergravitational turbulent thermal convection

Open Access
Science Advances 6, 1–7 (2020)

Authors

	Hechuan Jiang
	Xiaojue Zhu
	Dongpu Wang
	Sander Gerard Huisman
	Chao Sun

BibTeΧ

@article {Jiangeabb8676,
	author = {Jiang, Hechuan and Zhu, Xiaojue and Wang, Dongpu and Huisman, Sander G. and Sun, Chao},
	title = {Supergravitational turbulent thermal convection},
	volume = {6},
	number = {40},
	elocation-id = {eabb8676},
	year = {2020},
	doi = {10.1126/sciadv.abb8676},
	publisher = {American Association for the Advancement of Science},
	abstract = {High{\textendash}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 annulus to reach an effective gravity of 60 times Earth{\textquoteright}s gravity. We show that in the regime where the Coriolis effect is strong, the scaling exponent of Nusselt number versus Rayleigh number exceeds one-third once the Rayleigh number is large enough. The convective rolls revolve in prograde direction, signifying the emergence of zonal flow. The present findings open a new avenue on the exploration of high{\textendash}Rayleigh number turbulent thermal convection and will improve the understanding of the flow dynamics and heat transfer processes in geophysical and astrophysical flows and other strongly rotating systems.},
	URL = {https://advances.sciencemag.org/content/6/40/eabb8676},
	eprint = {https://advances.sciencemag.org/content/6/40/eabb8676.full.pdf},
	journal = {Science Advances}
}