enow.com Web Search

  1. Ads

    related to: how to calculate culvert size

Search results

  1. Results from the WOW.Com Content Network
  2. Manning formula - Wikipedia

    en.wikipedia.org/wiki/Manning_formula

    The Manning formula or Manning's equation is an empirical formula estimating the average velocity of a liquid in an open channel flow (flowing in a conduit that does not completely enclose the liquid).

  3. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    A drainage equation is an equation describing the relation between depth and spacing of parallel subsurface drains, depth of the watertable, depth and hydraulic conductivity of the soils.

  4. Hydraulic diameter - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_diameter

    Using this term, one can calculate many things in the same way as for a round tube. When the cross-section is uniform along the tube or channel length, it is defined as [1] [2] =, where A is the cross-sectional area of the flow, P is the wetted perimeter of the cross-section.

  5. Culvert - Wikipedia

    en.wikipedia.org/wiki/Culvert

    A culvert under the Vistula river levee and a street in Warsaw. Construction or installation at a culvert site generally results in disturbance of the site's soil, stream banks, or stream bed, and can result in the occurrence of unwanted problems such as scour holes or slumping of banks adjacent to the culvert structure.

  6. Stream power - Wikipedia

    en.wikipedia.org/wiki/Stream_power

    Critical unit stream power is the amount of stream power needed to displace a grain of a specific size, it is given by the equation: ω 0 = τ 0 ν 0 {\displaystyle \omega _{0}=\tau _{0}\nu _{0}} where τ 0 is the critical shear stress of the grain size that will be moved which can be found in the literature or experimentally determined while v ...

  7. Standard step method - Wikipedia

    en.wikipedia.org/wiki/Standard_Step_Method

    The standard step method (STM) is a computational technique utilized to estimate one-dimensional surface water profiles in open channels with gradually varied flow under steady state conditions.

  8. Hazen–Williams equation - Wikipedia

    en.wikipedia.org/wiki/Hazen–Williams_equation

    When used to calculate the head loss with the International System of Units, the equation will then become [13] = = where: S = Hydraulic slope; h f = head loss in meters (water) over the length of pipe; L = length of pipe in meters

  9. Nominal Pipe Size - Wikipedia

    en.wikipedia.org/wiki/Nominal_Pipe_Size

    Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

  1. Ads

    related to: how to calculate culvert size