Record Details

Study And Design Of Two-Thirds Power Weir

Electronic Theses of Indian Institute of Science

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Field Value
 
Title Study And Design Of Two-Thirds Power Weir
 
Creator Reddy, K Ranga
 
Subject Hydraulic Engineering
Weir - Design and Construction
Propotional Weir
Self Basing Weir
Weir Model
Weir - Mathematical Theory
V-Notch
Chimney Weir
Quadratic Weir
Weirs
 
Description This thesis is devoted to the study and designs of two important proportional weirs having the discharge-head characteristics of Q α H 2/3 In the first design a geometrically simple weir in the form of a rectangular weir over a inverted V-notch (Chimney weir) is presented. This weir gives for all flows above a threshold depth a discharge proportional to H 2/3 within a maximum percentage error of ±1.5, (measured above a reference plane) within certain limits of head.

Second design is concerned with the self-basing weir in which a portion of the weir above the crest acts as a base. This design is achieved by using the complementary weir profile of a Quadratic weir above the parabolic base which has the significant property of fast convergence. This weir gives discharge for all flows above the threshold depth, proportional to (head)2/3 measured above a reference plane, with increasing accuracy as head increases.

Experiments with these two weirs confirm the theory by giving a constant average Coefficient of Discharge (Cd) of 0.62. The importance of these weirs as a sensitive discharge measuring device in field and laboratory is highlighted.
 
Publisher Indian Institute of Science
 
Contributor Keshava Murthy, K
 
Date 2006-07-17T05:21:23Z
2006-07-17T05:21:23Z
2006-07-17T05:21:23Z
2000-12
 
Type Electronic Thesis and Dissertation
 
Format 1847053 bytes
application/pdf
 
Identifier http://etd.iisc.ernet.in/handle/2005/221
null
 
Language en
 
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