Events

Keynote Speakers
Side events
Technical visits
Public events
Other events

The congress

About IWRA
Message IWRA president
Invitation
Theme and topics
Organising Committee
Scientific Committee
Documents

Programme

Ordinary sessions
Programme Special sessions
Poster sessions
Stands

Practical Infos

Venue, dates and costs
Infos posters
Infos orals
Programme  Poster session 4  abstract 13

HYDRAULIC MODEL OF TRICKLE-IRRIGATED LATERALS BASED ON THE THEORY OF SPATIALLY VARIED FLOW

Author(s): Nina Philipova


Keyword(s):

Article: abs13_article.pdf
Poster: abs13_poster.pdf		 Get Adobe Reader

Session: Poster session 4
AbstractABSTRACT

A model for hydraulic design of drip irrigation lateral is developed by applying the theory of

spatially varied flow. A block-scheme is made by using SIMULINK-MATLAB for solving the determined two

differential equations. As a result diagrams for distribution of lateral flow rate, pressure head, head loss, emitter

discharge for each dripper along the pipe length and some other characteristics are obtained.
The influence of the

temperature on the kinematics viscosity of water is read by a coefficient in the formula of Darcy-Weisbach for head

loss due to friction. The friction coefficient is reported as a function of Reynolds number. The coefficient of

Boussinesq is determined for laminar and turbulent flow conditions.
The developed model of hydraulic design of

drip lateral is compared with experimental data for Israeli Netafim Thyphoon 16250 with emitter discharge

q=1.75l/h and spacing between emitters 0.30m.

  Return up