Entrainment and mixed layer dynamics of a surface-stress-driven stratified fluid
نویسندگان
چکیده
منابع مشابه
Simulation of entrainment near a density stratified layer: Laboratory experiment and LIDAR observation
In this paper a simple qualitative model of the growth of a mixed layer adjacent to a uniform layer with a stably stratified layer is presented. The depth variations of mixed layer can be estimated from direct measurements. The Entrainment of a stably stratified layer into a turbulent mixed layer in a confined region was studied in laboratory for different Richardson numbers. The internal waves...
متن کاملthe study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media
امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
URBAN FLUID DYNAMICS - Thermally driven environmental flows Entrainment into the atmospheric boundary layer: lidar observations and LES simulations
Entrainment is the process whereby miscible fluid is exchanged across a density interface bounding a region of turbulent flow [17]. It is of central importance in governing the dynamics of the atmospheric boundary layer (ABL) top. In the exchange process, relatively quiescent fluid is engulfed by turbulent motions penetrating across the interface and is subsequently mixed into the turbulent reg...
متن کاملUrban Fluid Dynamics – Thermally Driven Environmental Flows Entrainment Dynamics of Shear-Free Convective Boundary Layers Growing in Linearly and Discretely Stratified Fluids
Boundary layers driven by surface buoyant forcings are commonly observed in the environmental flows. An atmospheric example of such boundary layer is the so-called convective boundary layer (CBL), which is driven by buoyancy production at the heated underlying surface during the daytime conditions. The buoyancy is defined as b= g − ( ρ -ρ0 )/ρ0 , where ρ is the density of the fluid, ρ0 is the r...
متن کاملExcitation of Surface Waves Due to Thermocapillary Effects on a Stably Stratified Fluid Layer
In chemical engineering applications, the operation of condensers and evaporators can be made more efficient by exploiting the transport properties of interfacial waves excited on the interface between a hot vapor overlying a colder liquid. Linear theory for the onset of instabilities due to heating a thin layer from above is computed for the Marangoni–Bénard problem. Symbolic computation in th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2015
ISSN: 0022-1120,1469-7645
DOI: 10.1017/jfm.2015.5