Turbulence and atmospheric boundary layer
Informacje ogólne
Kod przedmiotu: | 1100-4TABL |
Kod Erasmus / ISCED: |
13.2
|
Nazwa przedmiotu: | Turbulence and atmospheric boundary layer |
Jednostka: | Wydział Fizyki |
Grupy: |
Fizyka; przedmioty prowadzone w języku angielskim Physics (Studies in English), 2nd cycle; specialization courses Physics (Studies in English); 2nd cycle |
Punkty ECTS i inne: |
(brak)
|
Język prowadzenia: | angielski |
Kierunek podstawowy MISMaP: | fizyka |
Rodzaj przedmiotu: | fakultatywne |
Założenia (opisowo): | (tylko po angielsku) Knowledge of basic hydrodynamics is a suggested prerequisite. |
Tryb prowadzenia: | w sali |
Skrócony opis: |
(tylko po angielsku) Turbulence is the most common regime of fluid flow. It is characterised by its high rotationality,enhanced mixing of mass, momentum and energy and, most importantly, a myriad of motions, called eddies, of different length and time scales, strongly interacting with each other. Turbulence plays a crucial role in all the processes in the atmosphere. The course introduces concepts important for the study and the modelling of turbulence. First part of the course concerns the phenomenon of turbulence in general, the second part focuses on the atmospheric turbulence. |
Pełny opis: |
(tylko po angielsku) The course will cover the following topics: 1. Characteristic features of turbulence, instabilities leading to turbulence development, non-dimensional parameters: Re, Ri, Pr, Pe, Ra, 2. Reynolds decomposition, Reynolds averaging 3. Governing Reynolds-averaged equations, problem of turbulence closure 4. Reynolds-averaged Navier-Stokes (RANS) turbulence modelling 5. Large Eddy Simulation method 6. Kolmogorov's hypotheses, transport equations in the spectral space 7. Two-dimensional turbulence 8. Phenomenology of the Atmospheric Boundary Layer (ABL), diurinal cycle 9. Monin-Obukhov theory 10. Growth of ABL, Ekman spiral, 11. Cloud-topped boundary layers 12. Motion of droplets in turbulent flow 13. Preferential concentration of cloud droplets', droplets' growth due to condenstation, droplets' growth due to collision-coalescence |
Literatura: |
(tylko po angielsku) [1] S. B. Pope "Turbulent flows", Cambrdige University Press, 2000 [2] J.R. Garratt The atmospheric boundary layer, Cambridge University Press, 1992 [3] R. Stull, The atmospheric boundary layer In: Atmospheric Science (Eds. J. Wallace,P. V. Hobbs), Elsevier, 2005 [4] R. A. Shaw, Particle-turbulence interactions in atmospheric clouds Annu. Rev. Fluid Mech. 35 183227, 2003 [5] R. Wood, Stratocumulus Clouds Mon. Wea. Rev., 140, 2373–2423, 2002 |
Efekty uczenia się: |
(tylko po angielsku) After completing the course the student will be able to understand hypotheses used in turbulence study, understand basic modelling approaches and draw conclusions from analysis of experimental data. |
Metody i kryteria oceniania: |
(tylko po angielsku) The final oral exam will be given during the final exam period. Apart from this several homework assignments are planned. |
Właścicielem praw autorskich jest Uniwersytet Warszawski, Wydział Fizyki.