Principal Investigator:
Cedrick Ansorge
, Institute of Geophysics and Meteorology, University of Cologne (Germany)
HPC Platform used:
JUWELS and JUQUEEN of JSC
Local Project ID:
hku24
A new avenue towards the study of the Planetary Boundary Layer (PBL), namely direct numerical simulation, is pursued in this project. The geophysical problem—characterized by enormous number of degrees of freedom—is condensed to its fluid mechanical core and solved explicitly which does not require assumptions or closures for the turbulent exchange of heat pollutants, heat and momentum: It rather represents the whole cascade of turbulent motion in a miniature problem. For the first time, this allows to quantify and understand surface fluxes without utilization of simplifying assumptions and theories such as Monin—Obukhov Similarity Theory.
