Evolution of the spherical cavity radius generated around a subsurface emitter

Gil Rodríguez, María and Rodríguez Sinobas, Leonor and Sánchez Calvo, Raúl and Juana Sirgado, Luis (2010). Evolution of the spherical cavity radius generated around a subsurface emitter. In: "European Geophysical Union Assemby 2009", 20/04/2009 - 26/04/2009, Viena, Austria. ISBN ISSN 1810-6277.

Description

Title: Evolution of the spherical cavity radius generated around a subsurface emitter
Author/s:
  • Gil Rodríguez, María
  • Rodríguez Sinobas, Leonor
  • Sánchez Calvo, Raúl
  • Juana Sirgado, Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: European Geophysical Union Assemby 2009
Event Dates: 20/04/2009 - 26/04/2009
Event Location: Viena, Austria
Title of Book: Geophysical Research Abstracts. Biogeosciences Discussions
Date: 2010
ISBN: ISSN 1810-6277
Volume: 7, Iss
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Ingeniería Rural [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (598kB) | Preview

Abstract

The emitter discharge in subsurface drip irrigation can be affected by soil properties. A positive pressure develops at the emitter outlet where a spherical cavity is assumed to form. In steady-state conditions, the pressure in the soil relates to soil hydraulic 5 properties, the emitter discharge, and the cavity radius. This pressure in the soil is very sensitive to the cavity radius. In this paper, the development of the cavity around the emitter outlet was measured for various emitter discharges in laboratory tests carried out in containers with uniform loamy soils. A trend between soil pressure and emitter discharge was established that illustrates the performance of buried emitters in the 10 field. Its application to the prediction of water distribution in subsurface drip irrigation units and its effect on the estimation of irrigation performance is also shown

More information

Item ID: 5722
DC Identifier: http://oa.upm.es/5722/
OAI Identifier: oai:oa.upm.es:5722
Official URL: http://www.biogeosciences-discuss.net/7/1935/2010/bgd-7-1935-2010-discussion.html
Deposited by: Memoria Investigacion
Deposited on: 17 Jan 2011 10:53
Last Modified: 20 Apr 2016 14:27
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM