faultfinder
发表于 2025-3-28 15:59:50
16 Invitation to Sediment Transportes subject to a free surface flow bounded by a granular medium. Flow of water also occurs very slowly through the interstices of the granular medium: however such a weak filtration process may be safely ignored. The interface between flowing mixture and granular medium can move as a result of a continuous exchange of sediment particles. The .’.
FLIP
发表于 2025-3-28 20:57:00
Dunes and Drumlinswind blows sand into a wide variety of different shapes (see Chap. 17 for many illustration of such dunes). Linear dunes, or ‘seifs’, are ridges which form parallel to the prevailing wind direction, while transverse dunes are ridges perpendicular to the wind. A variety of other shapes can occur, amongst them star dunes and barchan dunes.
ethnology
发表于 2025-3-29 02:45:49
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Diastole
发表于 2025-3-29 03:15:33
Geophysical Aspects of Non-Newtonian Fluid Mechanicsan Fluid Mechanics, Rheologica Acta, Journal of Fluid Mechanics, Journal of Rheology, amongst others). It is an area of active research, both for industrial fluid problems and for applications elsewhere, notably geophysically motivated issues such as the flow of lava and ice, mud slides, snow avalan
Omniscient
发表于 2025-3-29 11:13:27
Introduction to Rheology and Application to Geophysicsor each topic considered here, we will outline the key elements and point the reader to ward the most helpful references and authoritative works. The reader is also referred to available books introducing rheology [.],[.] for a more complete presentation and to the tutorial written by Middleton and
暴发户
发表于 2025-3-29 12:27:54
Granular Material Theories Revisitedluid plays an insignificant role in the transportation of momentum, flows of such materials can be considered as dispersed single-phase flows. In other occasions, when the mass of the interstitial fluid is comparable to that of the solids the interactions between the fluid and solid phases are signi
choleretic
发表于 2025-3-29 18:05:54
Earth’s Surface Morphology and Convection in the Mantleological and geophysical observations of the Earth’s surface, its relative horizontal motions and its topography. Direct consequences of the mantle flow include plate tectonics, which refers to the relative motions of the continents, spreading of the sea-floor, creation of new crust and mid-ocean ri
Madrigal
发表于 2025-3-29 19:50:03
Morphological Instabilities in Flows with Cooling, Freezing or Dissolutioneither within the crust or as surface lava flows, and the way in which these flows are affected by variable viscosity due to cooling or by a yield strength resulting fromsolidification. These effects invariably lead to non-uniformor three-dimensional flow patterns, particularly fingering and channel
荨麻
发表于 2025-3-30 00:42:36
Shallow Lava Theory the properties of such fluids. In the current chapter, we go further in this direction and describe more developments of a theoretical model for lava flows. Lava flows have recently been the subject of a review by Griffiths [.] (see also Chap. 6). Our aim here is to illustrate the use of viscoplast
Obsequious
发表于 2025-3-30 04:12:56
Explosive Volcanic Eruptionshis massive amount of material is subsequently deposited on the ground, with much of the coarser fraction of the flow being deposited within a few hundred kilometres of the volcanic edifice. This may lead to a substantial regional change to the topography, with ash flow deposits being tens to hundre