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Vortex Evolution in Forced/Decaying Turbulence

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Presentation on theme: "Vortex Evolution in Forced/Decaying Turbulence"— Presentation transcript:

1 Vortex Evolution in Forced/Decaying Turbulence
Anders H. Nielsen Optics and Fluid Dynamics department Risø National Laboratory, Denmark Herman Clercx Dep. of Physics, Eindhoven University of Technology Eindhoven, The Netherlands E. A. Coutsias Dep. of Mathematics and Statistics University of New Mexico, USA Clercx & Nielsen, PRL 85 4 (2000) pp Clercx et al, EJMB/fluids (Cortona Euromech 396)

2 Dipole – wall interaction
Re = 4.000

3 Decaying turbulence Clercx et al, EJMB/fluids (Cortona Euromech 396)

4 Decaying turbulence Re = 20.000
Clercx & Nielsen, PRL 85 4 (2000) pp

5 Decaying turbulence Dashed line (x) periodic ; Full line (+) noslip
Clercx & Nielsen, PRL 85 4 (2000) pp

6 Forced turbulence  = 0.1 Re=2.400
Clercx et al, EJMB/fluids (Cortona Euromech 396)

7 Forced turbulence  = 0.1 Re=5.400
Clercx et al, EJMB/fluids (Cortona Euromech 396)

8 Forced turbulence  = 100 Re=3.500
Clercx et al, EJMB/fluids (Cortona Euromech 396)

9 Forced turbulence  = 100 Re=25.000
Clercx et al, EJMB/fluids (Cortona Euromech 396)

10 Forced turbulence Noslip Periodic
Clercx et al, EJMB/fluids (Cortona Euromech 396)

11 Forced turbulence Noslip Periodic
Clercx et al, EJMB/fluids (Cortona Euromech 396)

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