Advertisement

Journal of Visualization

, Volume 13, Issue 2, pp 81–84 | Cite as

Three-dimensional vortex visualization in stratified spin-up

  • S. A. Smirnov
  • J. R. PachecoEmail author
  • R. Verzicco
Short Paper

Abstract

We present the results of three-dimensional time-dependent numerical simulations of incremental spin-up of a thermally stratified fluid. The fluid inside a vertical cylindrical container of radius R and height 2H is water characterized by the kinematic viscosity ν and thermal diffusivity κ. Initially, its density (temperature) varies linearly with height and is characterized by a constant buoyancy frequency N, which is proportional to the density gradient. The system undergoes an abrupt change in the rotation rate from its initial value Ωi, when the fluid is in a solid-body rotation state, to the final value Ωf. The aim of this contribution is to show the formation of columnar vortices in a high Rossby number spin-up flow.

Graphical Abstract

Keywords

Spin-up Rotation Stratification 

Notes

Acknowledgements

The authors acknowledge Texas Advanced Computing Center (TACC) at the University of Texas at Austin and Ira A. Fulton High Performance Computing Initiative at Arizona State University, both members of the NSF-funded Teragrid, for providing HPC and visualization resources.

Supplementary material

Supplementary material (MPG 1.26 MB)

References

  1. Flór JB, Bush JWM, Ungarish M (2004) An experimental investigation of spin-up from rest of a stratified fluid. Geophys Fluid Dyn 98:277–296CrossRefGoogle Scholar
  2. Greenspan HP (1980) A note on the spin-up from rest of a stratified fluid. Geophys Fluid Dyn 15:1–5CrossRefGoogle Scholar
  3. Hewitt RE, Duck PW, Foster MR (1999) Steady boundary-layer solutions for a swirling stratified fluid in a rotating cone. J Fluid Mech 384:339–374zbMATHCrossRefMathSciNetGoogle Scholar
  4. Hunt J, Wray A, Moin P (1988) Eddies, stream, and convergence zones in turbulent flows. Techical report, Annals of Research Briefs 1988, Center for Turbulence research, CTR-S88Google Scholar
  5. Kanda I (2004) A laboratory study of columnar baroclinic vortices in a continuously stratified fluid. Dyn Atmos Oceans 38:69–92CrossRefGoogle Scholar
  6. Linden PF, Van Heijst GJF (1984) Two-layer spin-up and frontogenesis. J Fluid Mech 143:69–94CrossRefGoogle Scholar
  7. Smirnov S, Pacheco JR, Verzicco R (2009) Numerical simulations of nonlinear thermally-stratified spin-up in a circular cylinder. J Fluid Mech (submitted)Google Scholar
  8. Verzicco R, Camussi R (1997) Transitional regimes of low-Prandtl thermal convection in a cylindrical cell. Phys Fluids 9:1287–1295CrossRefGoogle Scholar
  9. Verzicco R, Camussi R (1999) Prandtl number effects in convective turbulence. J Fluid Mech 383:55–73zbMATHCrossRefGoogle Scholar

Copyright information

© The Visualization Society of Japan 2009

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringTexas Tech UniversityLubbokUSA
  2. 2.School of Mathematics and StatisticsArizona State UniversityTempeUSA
  3. 3.Department of Civil Engineering and Geological SciencesThe University of Notre DameSouth BendUSA
  4. 4.Dipartimento di Ingegneria MeccanicaUniversita’ di Roma “Tor Vergata”RomeItaly

Personalised recommendations