Particulate gravity currents along V-shaped valleys – ERRATUM
نویسندگان
چکیده
منابع مشابه
Entraining gravity currents
Entrainment of ambient fluid into a gravity current, while often negligible in laboratory-scale flows, may become increasingly significant in large-scale natural flows. We present a theoretical study of the effect of this entrainment by augmenting a shallow water model for gravity currents under a deep ambient with a simple empirical model for entrainment, based on experimental measurements of ...
متن کاملMixing in gravity currents
We study entrainment in lock-release gravity currents using highly spatially resolved optical transmission experiments and quantitative analysis of the available potential energy of the flow. The principal results provide a resolution to the debate regarding the mechanism and degree of mixing in the head of a gravity current during the slumping phase. The nature of the complex internal mixing s...
متن کاملSpatio-temporal evolution of velocity structure, concentration and grain- size stratification within experimental particulate gravity currents
We describe a flume study of the spatio-temporal evolution of particulate gravity currents. Time series of the vertical structure of flow in terms of the forward component of velocity, flow concentration and grain-size of suspended sediment were co-measured at a different position along the flume for each of a series of nominally identical flows. The data are combined to show the spatial evolut...
متن کاملThe low-Reynolds number spreading of axisymmetric drops and gravity currents along a free surface
Experimental results are presented for the spreading of buoyant drops and gravity currents along a free surface. The spreading occurs at low Reynolds number, and no interfacial tension exists between the spreading and ambient fluid. Theoretical results suggest that distinct spreading rates occur in three regimes: l!@ ln(R/a)#a/R, a/R!l!R/a , and l@R/a , where l is the ratio of the spreading and...
متن کاملGravity Currents in Aquatic Canopies
A lock exchange experiment is used to investigate the propagation of gravity currents through a random array of rigid, emergent cylinders which represents a canopy of aquatic plants. As canopy drag increases, the propagating front varies from the classic profile of an unobstructed gravity current to a triangular profile. Unlike the unobstructed lock exchange, the gravity current in the canopy d...
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: 2009
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112009991595