Abstract:

This dataset contains mean and turbulent fields for 4 different cases corresponding to Ro = infinity, 40, 10 and 1.

Suggested Citation:

Alexandre Fabregat Tomas. 2017. Numerical Simulations of Rotating, Buoyant Plumes in Stratified Environments for Four Rossby Numbers. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7H13010

Publications:

Fabregat Tomàs, A., Poje, A. C., Özgökmen, T. M., & Dewar, W. K. (2016). Effects of rotation on turbulent buoyant plumes in stratified environments. Journal of Geophysical Research: Oceans. doi:10.1002/2016jc011737

Purpose:

Understand the effects of rotation in the overall dispersion of buoyant plumes generated by deepwater blowouts.

Data Parameters and Units:

0. z location 1. umean: Mean radial velocity 2. vmean: Mean azimuthal velocity 3. wmean: Mean vertical velocity 4. pmean: Mean pressure 5. tmean: Mean temperature perturbation 6. amean: Mean gas volume fraction 7. bmean: Mean passive scalar volume fraction 8. urms: Radial velocity r.m.s. 9. vrms: Azimuthal velocity r.m.s. 10. wrms: Vertical velocity r.m.s. 11. trms: Temperature velocity r.m.s. 12. arms: Gas volume fraction velocity r.m.s. 13. brms: Passive scalar velocity r.m.s. 14. uvms: Reynolds stresses 15. vwms: Reynolds stresses 16. wums: Reynolds stresses 17. utms: Turbulent flux term for the temperature 18. vtms: Turbulent flux term for the temperature 19. wtms: Turbulent flux term for the temperature 20. uams: Turbulent flux term for the gas volume fraction 21. vams: Turbulent flux term for the gas volume fraction 22. wams: Turbulent flux term for the gas volume fraction 23. ubms: Turbulent flux term for the passive scalar 24. vbms: Turbulent flux term for the passive scalar 25. wbms: Turbulent flux term for the passive scalar for each of 100 radial locations in a grid of dimensions r=[0,2.5] in the radial \times z=[0,10] in the vertical. All quantities are non-dimensional. 'Mean' quantities refer to temporal and azymuthal averages. The scales used for non-dimensionalizing the transport equations are: Velocity : U_0 = (B*N)^(1/4) Length : L_0 = U_0 / N Time : t_0 = L_0 / U_0 Temperature: T_0 = U_0^2 / (gamma * g * L_0) where B=5e-6 [m^4/s^3] is the inlet buoyancy flux for all plumes, N=0.1 [1/s] is the buoyancy frequency, gamma=2e-4 [1/K] is the thermal expansion coefficient g=9.8 [m/s^2] is the gravity acceleration

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