V-notch Sharp-crested weir

V-notch Sharp-crested weir

V-notch Sharp-crested weir This type is used for small discharges. The weir has a V-notch as a control section.

The angle can take any value, the most common value is 90o. To design or evaluate the discharge, the following equation is used, 8 2.5 Q C e 2 g tan h1 15

2 The discharge coefficient is obtained from the following graph, To design the weir, a similar procedure to the one explained in

the previous weir is used. However in this case, the value of h1 is assumed and then obtained from the equation until convergence is obtained. Also, if the characteristics of the weir are known, the discharge can be evaluated from the equation.

Example: Design a V-notch sharp crested weir according to the following data; Q= 0.25 m3/sec, B=1 m, d= 0.8 m Sol. Assume p1 = 0.4 m h1=0.4 m h1/p1 = 1 . b1/B = 0.4

From graph Ce= 0.598 Apply the equation .. h1= 0.5 m p1= 0.8 0.5 = 0.3 m h1/p1 = 1.67 . b1/B = 0.3 From graph Ce= 0.614

Apply the equation .. h1= 0.495 m close . P1 = 0.3 m

Recently Viewed Presentations

  • Ethernet Passive Optical Networks

    Ethernet Passive Optical Networks

    Ethernet Passive Optical Networks Example of EPON architecture for Access Networks Ethernet Passive Optical Networks Transmissions in an EPON Downlink Broadcasting ONUs select their packets based on MAC address Uplink ONUs compete for using the channel CSMA cannot be used,...
  • From Exodus to Exile Timeline of Major Events

    From Exodus to Exile Timeline of Major Events

    Moses led the Hebrews across the Red Sea and into the Sinai Region. On Mount Sinai, God appeared to Moses again. This time, God shared with him the Ten Commandments. The Ten Commandments served to emphasize the nature of God's...
  • Trilogy - cdnmedia.endeavorsuite.com

    Trilogy - cdnmedia.endeavorsuite.com

    What is the risk of using Trilogy's MPV feature. The MPV feature represents no more risk than any other form of NIV. MPV may be used an entire lifetime by some neuromuscular patients and may extend the quality of life...
  • Epreuve Ecrite Du Baccalaureat

    Epreuve Ecrite Du Baccalaureat

    Match the following words Quote Means Statements True False Your own words The following words Pick out According to the author A sentence Show Explanation The main character Translation The narrator Veut dire/signifie Choisis Montre Explication Le personnage principal Traduction...
  • Folie 1 - euwir.jura.uni-koeln.de

    Folie 1 - euwir.jura.uni-koeln.de

    Richter am OLG Nationales Kartellrecht § 21 GWB §§ 19 I, II, 20 I GWB §§ 36 I, 40 GWB Verbot von Kartellabspra-chen Boykottaufruf Diskriminierungs- und Behinderungsverbot etc. Kartellbehördliche Kontrolle von Unter-nehmensfusionen Unternehmen Unternehmen marktbeherrschende Unternehmen Unternehmen + § 35...
  • Learning Objective We will evaluate1 numerical expressions. CFU

    Learning Objective We will evaluate1 numerical expressions. CFU

    When there are two separate grouping symbols, either one can be evaluated first. ... The following is an expression to represent the number of fluid ounces of water. What is the total amount of water in fluid ounces? 6. Half...
  • Introduction to High School Grammar

    Introduction to High School Grammar

    To learn the "rules" of communication (Grammar), it helps to know the language of Grammar. Certain words help us understand and discuss the rules much easier. Example: Student tries to explain rules of "War" without using card names. Play Taboo
  • The Theme of Deception (Hypocrisy + Betrayal)

    The Theme of Deception (Hypocrisy + Betrayal)

    The theme of deception is the most prevalent and obvious theme of the entire play. The whole plot revolves around Iago's deception of many characters. What to discuss.