Abstract
interplay of buoyant forcing and rotation. Many recent studies have focused on the
geostrophic regime of turbulent rotating convection where the principal balance of
forces is between the Coriolis force and the pressure gradient. This regime is believed to be representative of conditions in geophysical and astrophysical flows. We hope to be able to extrapolate findings from laboratory experiments and numerical simulations towards these large-scale natural flows. In this paper I sketch the phase diagram of the geostrophic regime of rotating convection, put experimental and numerical studies in their place in these diagrams and discuss the partitioning into subranges characterized by different flow structures and heat transfer scaling. I also discuss some complications faced by experimentalists, such as constraints on the dimensions of the convection cell, wall modes near the sidewall and centrifugal buoyancy.
| Original language | English |
|---|---|
| Pages (from-to) | 267-296 |
| Number of pages | 30 |
| Journal | Journal of Turbulence |
| Volume | 22 |
| Issue number | 4-5 |
| Early online date | 26 Jan 2021 |
| DOIs | |
| Publication status | Published - 2021 |
Funding
The author received funding from the European Research Council (ERC) under the H2020 European Research Council research and innovation programme (Grant agreement No. 678634). The author is grateful for the support of the Netherlands Organisation for Scientific Research (NWO) for the use of supercomputer facilities (Cartesius) under Grants No. 15462, 16467, 2019.005, and 2020.009. I wish to thank my collaborators on the topic of rotating convection over the years: Andrés Aguirre Guzmán, Kim Alards, Jonathan Aurnou, Jonathan Cheng, Herman Clercx, Yoann Corre, Bernard Geurts, GertJan van Heijst, Pranav Joshi, Keith Julien, Detlef Lohse, Matteo Madonia, Jaap Molenaar, Rodolfo Ostilla-Mónico, Jim Overkamp, Erwin van der Poel, Jim Portegies, Hadi Rajaei, Richard Stevens, Chao Sun, Federico Toschi, Roberto Verzicco and Xander de Wit. I learned a lot from the contributions of and discussions with the other participants at the workshop ‘Rotating Convection: from the Lab to the Stars’ (May–June 2018) organised and supported by the Lorentz Center at the University of Leiden (http://www.lorentzcenter.nl/). Special thanks go to the fellow organisers Robert Ecke, Pascale Garaud, Keith Julien and Stephan Weiss. An experimentalist would be lost without technical support. I want to thank Ad Holten, Gerald Oerlemans, Freek van Uittert and Jørgen van der Veen, technicians of the Fluids and Flows group, for their input and assistance, and the Equipment and Prototype Center (EPC) of Eindhoven University of Technology for the realisation of the TROCONVEX setup.
| Funders | Funder number |
|---|---|
| European Union's Horizon 2020 - Research and Innovation Framework Programme | |
| Lorentz Center | |
| European Union's Horizon 2020 - Research and Innovation Framework Programme | 678634 |
| H2020 European Research Council | |
| Eindhoven University of Technology | |
| Nederlandse Organisatie voor Wetenschappelijk Onderzoek | 2019.005, 2020.009, 15462, 16467 |
Keywords
- Turbulent rotating convection
- direct numerical simulations
- flow structures
- inverse energy cascade
- laboratory experiments