نتایج جستجو برای: region mixing model
تعداد نتایج: 2602412 فیلتر نتایج به سال:
Ozone is an important pollutant and greenhouse gas, and tropospheric ozone variations are generally associated with both 15 natural and anthropogenic processes. As one of the most pristine and inaccessible regions in the world, the Tibetan Plateau has been considered as an ideal region for studying processes of the background atmosphere. Due to the vast area of the Tibetan Plateau, sites in the...
The asymptotic scaling behavior of the mixing region induced by a random velocity field is determined by applying Corrsin’s hypothesis in both the Eulerian and Lagrangian pictures. Both pictures lead to the same results for the asymptotic scaling exponent of the mixing region. Both longitudinal and transverse diffusion are asymptotically non-Fickian (Fickian) when the correlation function of th...
After sunset, a stable boundary layer (SBL) develops close to the ground, while the upper region of the daytime mixed layer becomes the residual layer (RL). Mixing between the SBL and RL is often quite limited and the RL is thought to be a reservoir for daytime mixed-layer pollutants under such conditions. However, ozone (O3) profiles observed in Maryland, U.S. suggest that the RL is not always...
Abstract Leptophobic Z ′ gauge boson appears naturally in many grand unified theories, such as flipped SU(5) or string-inspired E6 models. This elusive particle easily escapes the direct/indirect detections because it does not couple to charged leptons. However, it can generate flavor changing neutral current at tree level. In this letter, we show that the recently measured mass difference, ∆ms...
This work studies the fluid dynamics of solids in splash zone fluidized bed furnaces, with focus set on back-mixing and entrainment order to enhance understanding prediction flow bottom region furnace. Experimental results show establishment a also for runs absence dense bed. A simple model assuming ballistic trajectories ejected is shown satisfactorily estimate rate. The flux non-backmixed sol...
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