Irrigation & Drainage Engineering 12 min read
Land Grading Survey and Design
Land grading is the operation carried out to reshape the land by cutting, filling and smoothing to a designed continuous…
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Irrigation & Drainage Engineering 8 min read
Design and Operation of Underground Pipeline System
Design of Underground Pipeline Systems The design of underground pipe line system requires information on land topography, location of water…
Irrigation & Drainage Engineering 11 min read
Underground Pipeline Systems
Water is conveyed from the water source to the cropped field using networks of open channels and or pipe lines.…
Irrigation & Drainage Engineering 6 min read
Structures for Diversions and Channel Crossings
Water from the farm irrigation channel is diverted to branch channels or into field channels by means of junction boxes,…
Irrigation & Drainage Engineering 3 min read
On Farm Structures for Water Conveyance
It is necessary that the flow of irrigation water in the water conveyance system is always under control. Water control…
Irrigation & Drainage Engineering 12 min read
Design of Open Channel
Introduction Open Channel is a passage through which water flows and has upper surface exposed to atmosphere. Open channel design…
Irrigation & Drainage Engineering 12 min read
Open Channel Flow
There are two kinds of flow: Open channel and pipe. These flows differ in many ways. The important difference is…
Irrigation & Drainage Engineering 5 min read
Pipe Orifice, Water Meter and Propeller Meter
Pipe Orifice Definition Orifice meter or orifice plate is a device (cheaper than a venture meter) employed for measuring the…
Irrigation & Drainage Engineering 15 min read
Water Flow Measurement in Pipes
In the previous lesson, we have studied methods for water flow measurements in open channel. However, irrigation water also conveyed…
Irrigation & Drainage Engineering 8 min read
Orifices
Free Flow Orifice Orifices may be used to measure rates of flow when the size and shape of the orifice…
Irrigation & Drainage Engineering 5 min read
Flumes
Parshall Flume Parshall flumes are devices for the measurement of flow of water in open channels when depth of flow…
Irrigation & Drainage Engineering 14 min read
Weirs
Introduction Effective use of water for irrigation requires that flow rates and volumes be measured and expressed quantitatively. Measurement of…
