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subclass    
n. 亚纲,子集

亚纲,子集

subclass
子类

subclass
子类

subclass
n 1: (biology) a taxonomic category below a class and above an
order

Subclass \Sub"class`\, n.
One of the natural groups, more important than an order, into
which some classes are divided; as, the angiospermous
subclass of exogens.
[1913 Webster]

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  • Chapter 5 Flow in open channels | Hydraulics and Water Resources . . . - SCU
    For open channel flow, given a channel shape and flow rate, flow can usually exist at two different depths, termed subcritical (slow, deep) and supercritical (shallow, fast) The exception is at critical flow conditions, where only one depth exists, the critical depth
  • Open channel hydraulics
    This course of 15 lectures provides an introduction to open channel hydraulics, the generic name for the study of flows in rivers, canals, and sewers, where the distinguishing characteristic is that the surface is unconfined
  • Open Channel Flow in Hydraulics Engineering
    Learn what is open channel flow, equations used, parameters How open channels predicts flood depth, or even managing water resources
  • Open Channel Flow: A Comprehensive Overview - EngineerExcel
    Open channel flow is the movement of fluid under the influence of gravity in natural or man-made channels, such as rivers, streams, and canals, with a free surface exposed to the atmosphere
  • Chapter 4 Open-Channel Flow - Hydraulics Manual M 23-03
    All open-channel flow assessments require a hydrologic analysis with procedures and methodologies presented in Chapter 2 In the case of earth-lined channels or river channels, bank protection may also be required if the shear stress is high enough to cause erosion or scouring
  • What Is Open Channel Flow and How Does It Work?
    In open channel flow, the hydraulic grade line, which represents the total potential energy of the fluid, coincides exactly with the water surface itself This concept is observed in common examples like the flow of water in a natural river, a stream, or a man-made irrigation canal
  • Mastering Open-Channel Flow in Hydrology
    Dive into the world of open-channel flow, a crucial aspect of hydrology, and discover its significance in water resource management and engineering
  • Hydraulic control in open channels: upstream and downstream controls . . .
    In an open channel, a high-velocity supercritical flow can only be controlled from upstream, e g by a spillway gate or by an uncontrolled weir crest This is termed upstream control
  • What is open channel flow, and how does it differ from pipe flow?
    Open channel flow refers to the flow of a liquid, usually water, in a channel that has a free surface exposed to air This type of flow occurs naturally in rivers and streams or artificially in canals, ditches, and drainage systems
  • Open Channel Flow - ASDSO Dam Safety Toolbox
    Understanding the hydraulic behavior of open channel flow is crucial for efficient dam operation By accurately predicting the flow characteristics, engineers can optimize the operation of spillways and outlet works, ensuring effective flood control and sediment management





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