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Research Output 2005 2019

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Article
2019

Flow visualisation in swimming practice using small air bubbles

van Houwelingen, J., Kunnen, R. P. J., van de Water, W., Holten, A. P. C., van Heijst, G. J. F. & Clercx, H. J. H., 1 Jun 2019, In : Sports Engineering. 22, 2, 8 p., 13

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Swimming Pools
Swimming pools
Flow Visualization
Flow visualization
Bubbles (in fluids)

Sharp transitions in turbulent rotating convection: Lagrangian acceleration statistics reveal a second critical Rossby number

Alards, K., Kunnen, R., Stevens, R. J. A. M., Lohse, D., Toschi, F. & Clercx, H., 3 Jul 2019, In : Physical Review Fluids. 4, 7, p. 1-19 19 p., 074601

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Convection
Rotating
Statistics
Vorticity
Heat Transfer

Statistical properties of thermally expandable particles in soft-turbulence Rayleigh-Benard convection

Alards, K., Kunnen, R., Clercx, H. & Toschi, F., 2019, In : European Physical Journal E : Soft Matter. 42, 9, 12 p., 126

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rayleigh-Benard convection
Convection
Turbulence
Hot Temperature
turbulence
2018
4 Citations (Scopus)

A heuristic framework for next-generation models of geostrophic convective turbulence

Cheng, J. S., Aurnou, J. M., Julien, K. & Kunnen, R. P. J., 2018, In : Geophysical and Astrophysical Fluid Dynamics. 112, 4, p. 277-300

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
heuristics
Turbulence
turbulence
convection
prediction

Directional change of tracer trajectories in rotating Rayleigh-Bénard convection

Alards, K. M. J., Rajaei, H., Kunnen, R. P. J., Toschi, F. & Clercx, H. J. H., 18 Jun 2018, In : Physical Review E. 97, 6, 14 p., 063105

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rayleigh-Benard convection
Rayleigh-Bénard Convection
tracers
Boundary Layer
boundary layers

Extreme small-scale clustering of droplets in turbulence driven by hydrodynamic interactions

Yavuz, M. A., Kunnen, R. P. J., Van Heijst, G. J. F. & Clercx, H. J. H., 15 Jun 2018, In : Physical Review Letters. 120, 24, 5 p., 244504

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
turbulence
hydrodynamics
Stokes flow
inertia
interactions
1 Citation (Scopus)

Velocity and acceleration statistics in rapidly rotating Rayleigh-Bénard convection

Rajaei, H., Alards, K. M. J., Kunnen, R. P. J. & Clercx, H. J. H., 25 Dec 2018, In : Journal of Fluid Mechanics. 857, p. 374-397 24 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rayleigh-Benard convection
Statistics
statistics
Convection
plumes
2017

Effect of microbubble-induced capillary voids on the dispersion of sprays

van der Voort, D. D., Dam, N. J., Kunnen, R. P. J., van Heijst, G. J. F. & Clercx, H. J. H., 2017, In : Physical Review Fluids. 2, 3, p. 1-13 13 p., 033601

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
nozzles
sprayers
voids
bubbles
cavitation flow
3 Citations (Scopus)

Exploring the geostrophic regime of rapidly rotating convection with experiments

Rajaei, H., Kunnen, R. P. J. & Clercx, H. J. H., 1 Apr 2017, In : Physics of Fluids. 29, 4, p. 1-11 11 p., 045105

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
convection
working fluids
convection cells
Rayleigh-Benard convection
particle image velocimetry
4 Citations (Scopus)

Geometry of tracer trajectories in rotating turbulent flows

Alards, K. M. J., Rajaei, H., Del Castello, L., Kunnen, R. P. J., Toschi, F. & Clercx, H. J. H., 2017, In : Physical Review Fluids. 2, 4, 17 p., 044601

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
turbulent flow
tracers
trajectories
geometry
torsion
3 Citations (Scopus)

Heat transfer in rotating Rayleigh-Bénard convection with rough plates

Joshi, P. R., Rajaei, H., Kunnen, R. P. J. & Clercx, H. J. H., 10 Nov 2017, In : Journal of Fluid Mechanics. 830, p. 1-12 12 p., R3

Research output: Contribution to journalArticleAcademicpeer-review

Rayleigh-Benard convection
roughness
Surface roughness
heat transfer
Heat transfer
3 Citations (Scopus)

Infotaxis in a turbulent 3D channel flow

Eggels, A. W., Kunnen, R. P. J., Koren, B. & Tijsseling, A. S., 15 Jan 2017, In : Journal of Computational and Applied Mathematics. 310, p. 44-58 15 p.

Research output: Contribution to journalArticleAcademicpeer-review

Channel Flow
Channel flow
Search Algorithm
Direct numerical simulation
Turbulent Channel Flow

On the accessibility of rotating convection regimes in laboratory experimental studies

Cheng, J. S., Aurnou, J. M., Julien, K. & Kunnen, R. P. J., 8 Mar 2017, In : arXiv.org, e-Print Archive, Physics. 39 p., 1703.02895v3

Research output: Contribution to journalArticleAcademic

Open Access
File
accessibility
experimental study
convection
fluid dynamics
physics

The effect of finger spreading on drag of the hand in human swimming

van Houwelingen, J., Willemsen, D. H. J., Kunnen, R. P. J., van Heijst, G. J. F., Grift, E. J., Breugem, W. P., Delfos, R., Westerweel, J., Clercx, H. J. H. & van de Water, W., 3 Oct 2017, In : Journal of Biomechanics. 63, p. 67-73 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

Fingers
Drag
Hand
Drag coefficient
Actuator disks
2016

Bellen vertellen hoe we sneller kunnen zwemmen

van Houwelingen, J., van de Water, W., Kunnen, R. P. J., van Heijst, G. J. F. & Clercx, H. J. H., 2016, In : Nederlands Tijdschrift voor Natuurkunde. 82, 6, p. 174-177 4 p.

Research output: Contribution to journalArticleProfessional

Decreasing luminescence lifetime of evaporating phosphorescent droplets

van der Voort, D. D., Dam, N. J., Sweep, A. M., Kunnen, R. P. J., van Heijst, G. J. F., Clercx, H. J. H. & van de Water, W., 7 Dec 2016, In : Applied Physics Letters. 109, 23, 5 p., 234103

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
3 Citations (Scopus)

Effect of particle injection on heat transfer in rotating Rayleigh-Bénard convection

Joshi, P. R., Rajaei, H., Kunnen, R. P. J. & Clercx, H. J. H., 2016, In : Physical Review Fluids. 1, 8, 19 p., 084301

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rayleigh-Benard convection
heat transfer
injection
fluids
damping
5 Citations (Scopus)

Flow anisotropy in rotating buoyancy-driven turbulence

Rajaei, H., Joshi, P. R., Kunnen, R. P. J. & Clercx, H. J. H., 1 Aug 2016, In : Physical Review Fluids. 1, 4, 15 p., 044403

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
2 Citations (Scopus)

Lanthanide-based laser-induced phosphorescence for spray diagnostics

van der Voort, D. D., Maes, N. C. J., Lamberts, T., Sweep, A. M., van de Water, W., Kunnen, R. P. J., Clercx, H. J. H., van Heijst, G. J. F. & Dam, N. J., 8 Mar 2016, In : Review of Scientific Instruments. 87, 3, 8 p., 033702

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Phosphorescence
phosphorescence
Rare earth elements
sprayers
Lasers
10 Citations (Scopus)

Transitions in turbulent rotating convection: A Lagrangian perspective: A Lagrangian perspective

Rajaei, H., Joshi, P. R., Alards, K. M. J., Kunnen, R. P. J., Toschi, F. & Clercx, H. J. H., 29 Apr 2016, In : Physical Review E. 93, 4, p. 1-5 5 p., 043129

Research output: Contribution to journalArticleAcademicpeer-review

Convection
Rotating
convection
boundary layer transition
direct numerical simulation
16 Citations (Scopus)

Transition to geostrophic convection : the role of the boundary conditions

Kunnen, R. P. J., Ostilla-Mónico, R., van der Poel, E., Verzicco, R. & Lohse, D., 2016, In : Journal of Fluid Mechanics. 799, p. 413-432 20 p.

Research output: Contribution to journalArticleAcademicpeer-review

convection
Boundary conditions
boundary conditions
free boundaries
cascades
2014
19 Citations (Scopus)

Collision rates of small ellipsoids settling in turbulence

Siewert, C., Kunnen, R. P. J. & Schröder, W., 2014, In : Journal of Fluid Mechanics. 758, p. 686-701 16 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
collision rates
settling
ellipsoids
Turbulence
turbulence
4 Citations (Scopus)

Influence of turbulence on the drop growth in warm clouds, Part I: comparison of numerically and experimentally determined collision kernels

Siewert, C., Bordás, R., Wacker, U., Beheng, K. D., Kunnen, R. P. J., Meinke, M., Schröder, W. & Thévenin, D., 2014, In : Meteorologische Zeitschrift. 23, 4, p. 397-410 14 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
collision
turbulence
comparison
simulation
experiment
4 Citations (Scopus)

Intensified heat transfer in modulated rotating Rayleigh-Bénard convection

Geurts, B. J. & Kunnen, R. P. J., 2014, In : International Journal of Heat and Fluid Flow. 49, p. 62-68 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rayleigh-Benard convection
heat transfer
Heat transfer
Flow structure
Turbulence
42 Citations (Scopus)

Orientation statistics and settling velocity of ellipsoids in decaying turbulence

Siewert, C., Kunnen, R. P. J., Meinke, M. & Schröder, W., 2014, In : Atmospheric Research. 142, p. 45-56 12 p.

Research output: Contribution to journalArticleAcademicpeer-review

settling velocity
turbulence
turbulent flow
energy dissipation
flow field
2 Citations (Scopus)

Probing the energy cascade of convective turbulence

Kunnen, R. P. J. & Clercx, H. J. H., 2014, In : Physical Review E. 90, 6, p. 063018-1/8 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

Cascade
Turbulence
cascades
Length Scale
turbulence
2 Citations (Scopus)

Rotating turbulent Rayleigh-Bénard convection subject to harmonically forced flow reversals

Geurts, B. J. & Kunnen, R. P. J., 2014, In : Journal of Turbulence. 15, 11, p. 776-794 21 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rayleigh-Benard convection
Flow structure
Heat transfer
heat transfer
Nusselt number
2013
26 Citations (Scopus)

Numerically determined geometric collision kernels in spatially evolving isotropic turbulence relevant for droplets in clouds

Kunnen, R. P. J., Siewert, C., Meinke, M., Schröder, W. & Beheng, K. D., 2013, In : Atmospheric Research. 127, p. 8-21 14 p.

Research output: Contribution to journalArticleAcademicpeer-review

droplet
collision
turbulence
turbulent flow
cloud droplet
12 Citations (Scopus)

The structure of sidewall boundary layers in confined rotating Rayleigh-Bénard convection

Kunnen, R. P. J., Clercx, H. J. H. & Heijst, van, G. J. F., 2013, In : Journal of Fluid Mechanics. 727, p. 509-532 24 p.

Research output: Contribution to journalArticleAcademicpeer-review

Rayleigh-Benard convection
boundary layers
Boundary layers
convection
Sandwich structures
9 Citations (Scopus)

Vortex plume distribution in confined turbulent rotating convection

Kunnen, R. P. J., Corre, Y. & Clercx, H. J. H., 2013, In : EPL. 104, 6, p. 54002-1/6 6 p., 54002

Research output: Contribution to journalArticleAcademicpeer-review

plumes
convection
vortices
boundary layers
Rayleigh-Benard convection
2011
32 Citations (Scopus)

The role of Stewartson and Ekman layers in turbulent rotating Rayleigh-Bénard convection

Kunnen, R. P. J., Stevens, R. J. A. M., Overkamp, J. V., Sun, C., Heijst, van, G. J. F. & Clercx, H. J. H., 2011, In : Journal of Fluid Mechanics. 688, p. 422-442 21 p.

Research output: Contribution to journalArticleAcademicpeer-review

Ekman layer
Rayleigh-Benard convection
Thermal gradients
wall temperature
temperature gradients
2010
46 Citations (Scopus)

Experimental and numerical investigation of turbulent convection in a rotating cylinder

Kunnen, R. P. J., Geurts, B. J. & Clercx, H. J. H., 2010, In : Journal of Fluid Mechanics. 642, p. 445-476 21 p.

Research output: Contribution to journalArticleAcademicpeer-review

rotating cylinders
convection
Vorticity
vorticity
Boundary layers
27 Citations (Scopus)

Vortex statistics in turbulent rotating convection

Kunnen, R. P. J., Clercx, H. J. H. & Geurts, B. J., 2010, In : Physical Review E. 82, 3, p. 036306-1/12 12 p., 036306

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Convection
Vortex
Rotating
convection
statistics
7 Citations (Scopus)

Vortices in time-periodic shear

Kunnen, R. P. J., Trieling, R. R. & Heijst, van, G. J. F., 2010, In : Theoretical and Computational Fluid Dynamics. 24, 1-4, p. 315-322

Research output: Contribution to journalArticleAcademicpeer-review

Vortex flow
vortices
shear
Shear flow
shear flow
2009
18 Citations (Scopus)

Turbulence statistics and energy budget in rotating Rayleigh-Bénard convection

Kunnen, R. P. J., Geurts, B. J. & Clercx, H. J. H., 2009, In : European Journal of Mechanics. B, Fluids. 28, 4, p. 578-589

Research output: Contribution to journalArticleAcademicpeer-review

Rayleigh-Benard convection
Rayleigh-Bénard Convection
energy budgets
budgets
Turbulence
2008
13 Citations (Scopus)

A model for vortical plumes in rotating convection

Portegies, J. W., Kunnen, R. P. J., Heijst, van, G. J. F. & Molenaar, J., 2008, In : Physics of Fluids. 20, 6, p. 066602-1/10 10 p., 066602

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
plumes
convection
vortices
symmetry
Boussinesq approximation
55 Citations (Scopus)

Breakdown of large-scale circulation in turbulent rotating convection

Kunnen, R. P. J., Clercx, H. J. H. & Geurts, B. J., 2008, In : EPL. 84, 2, p. 24001-1/6 6 p., 24001

Research output: Contribution to journalArticleAcademicpeer-review

convection
breakdown
convective heat transfer
Rayleigh number
Prandtl number
20 Citations (Scopus)

Enhanced vertical inhomogeneity in turbulent rotating convection

Kunnen, R. P. J., Clercx, H. J. H. & Geurts, B. J., 2008, In : Physical Review Letters. 101, 17, p. 174501-1/4 4 p., 174501

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
inhomogeneity
convection
anisotropy
Reynolds stress
isotropy
47 Citations (Scopus)

Numerical and experimental investigation of structure-function scaling in turbulent Rayleigh-Bénard convection

Kunnen, R. P. J., Clercx, H. J. H., Geurts, B. J., Bokhoven, van, L. J. A., Akkermans, R. A. D. & Verzicco, R., 2008, In : Physical Review E. 77, 1, p. 016302-1/13 13 p., 016302

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rayleigh-Benard convection
Rayleigh-Bénard Convection
Structure-function
Numerical Investigation
Experimental Investigation
2006
51 Citations (Scopus)

Heat flux intensification by vortical flow localization in rotating convection

Kunnen, R. P. J., Clercx, H. J. H. & Geurts, B. J., 2006, In : Physical Review E. 74, 5, p. 056306-1/4 4 p., 056306

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Heat Flux
Convection
heat flux
Rotating
convection