Sediment transport is a book that covers a wide variety of subject matters. It combines the personal and professional experience of the authors on solid particles transport and related problems, whose expertise is focused in aqueous systems and in laboratory flumes. This includes a series of chapters on hydrodynamics and their relationship with sediment transport and morphological development.
Marine Sediments are:Particles of various sizes derived from a variety of sources that are deposited on the ocean floor.A vast “library” recording geologic, oceanographic and climatic conditions Remarkably complete compared to land Effects of water velocity on transport: rivers and nearshore vs open ocean...
With the amazing advances of scientific research, Hydrodynamics - Theory and Application presents the engineering applications of hydrodynamics from many countries around the world. A wide range of topics are covered in this book, including the theoretical, experimental, and numerical investigations on various subjects related to hydrodynamic problems. The book consists of twelve chapters, each of which is edited separately and deals with a specific topic. The book is intended to be a useful reference to the readers who are working in this field....
After its emission or secondary formation, the length of time airborne matter will remain suspended in the
air will depend upon its density, shape and size and meteorological conditions. Suspended particles are
deposited by dry deposition, either by sedimentation and gravitational settling or impaction due to
atmospheric turbulence and diffusion. This latter process is characteristic of particles which undergo
Brownian movement and sizes below 0.1µm.
Broadmeadow and Freer-Smith (1996) described three methods of particular
deposition: sedimentation; precipitation and impaction. Sedimentation and
precipitation occur due to gravity and collision with rain droplets respectively, and are
unaffected by vegetation. Impaction occurs when a laminar air stream is disrupted as
it passes the aerodynamically rough plant surfaces, while the particle continues in a
straight line and strikes the obstacle, either through direct interception or electrostatic
Mercury released through sewage plants and storm
sewers often contaminates the sediments of lakes
and rivers on a local scale. However, most of the
human-generated mercury that enters the aquatic
system is deposited through the atmosphere in rain,
snow or attached to small dust particles. Mercury
also enters lakes directly from natural geologic
sources. In lakes that have been created by hydro
dams, very high levels of mercury are often found as
a result of natural bacterial processes that become
greatly accelerated by the flooding of land and
decomposition of vegetation.
Bồi lắng pha rắn trong các phương tiện truyền thông liên tục phụ thuộc vào độ nhớt của phương tiện truyền thông, tính chất vật lý, hình thức, bề mặt gồ ghề, nồng độ của các hạt . Bên cạnh đó, sức căng bề mặt cũng có tác dụng để lắng.