Środowiskowe Seminarium Fizyki Atmosfery
sala B4.58, ul. Pasteura 5
2024-12-06 (13:15) 
dr inż. Marta Wacławczyk (IGF UW)
Scaling laws for turbulence in the atmospheric boundary layer
The presentation concerns similarity theories and scaling laws used to parametrize turbulence in ABL. The special focus will be on stably stratified boundary layers which forms mostly over night due to surface radiative cooling.
Weakly stably stratified boundary layers are described under the Monin-Obukhov similarity theory (MOST), in which the characteristic length scale is the Obukhov length L, constructed based on turbulent momentum and heat fluxes. However, as the stratification increases the Monin-Obukhov theory describes boundary layer less well. Our work focuses on similarity theories provided by invariant solutions of a set of governing equations forturbulence statistics. We present experimental verification of the derived formulas and show that they improve parametrization of the strongly stratified ABL.
Join Zoom Meeting
https://uw-edu-pl.zoom.us/j/98676440188?pwd=am0T9QrHHelsr6Xx0ace4pGIFVujXT.1
Meeting ID: 986 7644 0188
Passcode: 187760
Weakly stably stratified boundary layers are described under the Monin-Obukhov similarity theory (MOST), in which the characteristic length scale is the Obukhov length L, constructed based on turbulent momentum and heat fluxes. However, as the stratification increases the Monin-Obukhov theory describes boundary layer less well. Our work focuses on similarity theories provided by invariant solutions of a set of governing equations forturbulence statistics. We present experimental verification of the derived formulas and show that they improve parametrization of the strongly stratified ABL.
Join Zoom Meeting
https://uw-edu-pl.zoom.us/j/98676440188?pwd=am0T9QrHHelsr6Xx0ace4pGIFVujXT.1
Meeting ID: 986 7644 0188
Passcode: 187760