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Job Record #15653
TitlePhD in CFD of RB convection
CategoryJob in Academia
EmployerBTU Cottbus-Senftenberg
LocationGermany, Brandenburg, Cottbus
InternationalYes, international applications are welcome
Closure DateSunday, March 31, 2019
Description:
Title: Stochastic simulation of Rayleigh Bénard Convection in planar and spherical configurations


Scientific field: Mechanical Engineering, Astrophysics, Meteorology, Applied Mathematics, Computational 
Fluid Dynamics

Key words: CFD, Rayleigh Bénard Convection


Scientific Context:
Rayleigh‐Bénard convection (RBC) is a canonical flow problem with relevance to many buoyancy driven 
turbulent flows as e.g. in the atmosphere, oceans, stars, or in industry. One of the most discussed topics in 
the field of RBC is whether a so-called ultimate regime predicted theoretically by Kraichnan does exist or not. 
Observations of the transition to the ultimate regime have been reported
several times, but recently also questioned. 

Research subject:
In this project we want to investigate RBC in planar and spherical configurations using efficient stochastic 
simulation approaches like ODT (one-dimensional turbulence).

Duration and Payment:
The project duration is 36 months. The Ph.D. candidate will be paid in form of a tax free stipend. The amount 
is at least of the order of DFG funded Ph.D. stipends, but might be higher depending on the qualification of 
the candidate.
  
Application:
Only via email using only one pdf document. Email Subject should be RBC. 


References on this topic:
[1] R. H. Kraichnan, Turbulent thermal convection at arbitrary Prandtl number, Phys. Fluids 5, 1374 (1962).

[2] Chillà, F., and Schumacher, J., 2012, “New Perspectives in Turbulent Rayleigh–Bénard Convection”, Eur 
Phys J E, Vol. 35, 58.

[3] Gastine, T., Wicht, J., and Aurnou, J. M., 2015, “Turbulent Rayleigh–Bénard Convection in Spherical 
Shells”, J Fluid Mech, Vol. 778,
pp. 721–764.

[4] X. Chavanne, F. Chilla, B. Castaing, B. Hébral, B. Chabaud and J. Chaussy, Observation of the ultimate
regime in Rayleigh–Bénard convection, Phys. Rev. Lett. 79, 3648 (1997).

[5] X. He, D. Funfschilling, H. Nobach, E. Bodenschatz, G. Ahlers, Transition to the ultimate state of
turbulent Rayleigh–Bénard convection, Phys. Rev. Lett. 108, 024502 (2012).

[6] P. Urban, P. Hanzelka, T. Králík, M. Macek, V. Musilová, and L. Skrbek, Elusive transition to the
ultimate regime of turbulent Rayleigh‐Bénard convection, Phys. Rev. E, 

[7] Klein, M. and Schmidt, H. (2018). Map-based modeling of high-Ra turbulent convection in planar and 
spherical geometries. 17th International Conference on Modelling Fluid Flow (CMFF), September 04-07, 2018, 
Budapest, Ungarn (https://www.researchgate.net/publication/328262695)


Contact Information:
Please mention the CFD Jobs Database, record #15653 when responding to this ad.
NameRecruitment Manager
Emailheischmi@zedat.fu-berlin.de
Email ApplicationYes
Record Data:
Last Modified10:05:15, Saturday, March 23, 2019

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