Environmental Stratified Flows

Vincenzo Armenio, Sutanu Sarkar (Herausgeber)

Buch | Softcover

VII, 232 Seiten

2005 | 2005
Springer Wien (Verlag)
978-3-211-28408-7 (ISBN)

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Stratified flows, common in environmental and geophysical applications, are char acterized by the variation of fluid density in the vertical direction that can result in qualitative and quantitative modifications of the flow patterns by buoyancy . Unstable stratification (dense water/air above light water/air) increases the ver tical mixing by generation of convective cells while stable stratification generally suppresses vertical mixing of mass and momentum. Even so, a stably stratified fluid can support internal waves, instabilities and turbulence that play a critical role in transport and mixing. The ocean is predominantly subject to stable stratification which, under exter nal excitation, supports an environment of internal waves which may then break and generate turbulence. Wind forcing, currents and convective plumes are other sources of turbulence in the ocean. In the ocean, stratified turbulence mediates the upward transport of bottom water, nutrients, chemical and biological species, and pollutants. In the atmosphere, stratification affects the transport of pollutants released at ground level, a critical problem being the thermal inversion in urban areas that causes the stagnation of pollutants and small particulate (PM2.5 to PMIO) in the lower part of the atmospheric boundary layer. In buildings, strat ification governs the circulation of air and heat in natural ventilation systems.

Mathematical modeling of Stratified flows.- Internal gravity waves in geophysical fluids.- Prototypical examples of stratified shear flow.- The atmospheric boundary layer.

Erscheint lt. Verlag	24.11.2005
Reihe/Serie	CISM International Centre for Mechanical Sciences
Zusatzinfo	VII, 232 p.
Verlagsort	Vienna
Sprache	englisch
Maße	170 x 244 mm
Gewicht	420 g
Themenwelt	Informatik ► Theorie / Studium ► Künstliche Intelligenz / Robotik
	Naturwissenschaften ► Physik / Astronomie ► Mechanik
	Naturwissenschaften ► Physik / Astronomie ► Strömungsmechanik
	Technik ► Maschinenbau
Schlagworte	fluid- and aerodynamics • fluid mechanics • geophysical fluid dynamic • Geophysik • Hardcover, Softcover / Physik, Astronomie/Mechanik, Akustik • HC/Physik, Astronomie/Mechanik, Akustik • Layer • Mathematical Modeling • Mechanics • Mixing • Modeling • Turbulence • Turbulent flow • Waves
ISBN-10	3-211-28408-7 / 3211284087
ISBN-13	978-3-211-28408-7 / 9783211284087
Zustand	Neuware