Perspective on 'delayed yield'.

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The phenomenon of 'delayed yield' has received wide attention in the literature during recent years. Considerable work has been devoted to the development of physically based mathematical models capable of successfully reproducing observed aquifer behaviour. As a result of this effort, there appears to be at present a consensus of opinion among the main contributors to the theory of delayed yield as to an acceptable physical and mathematical interpretation of this phenomemon. In spite of this apparent consensus of opinion, there is still a considerable amount of controversy in the literature about some fundamental aspects of unconfined well hydraulics. The outstanding issues concern the physical assumptions underlying various delayed yield models, changes in the flow regime of an unconfined aquifer as a function of radial distance from the pumping well, the relationship between Boulton's ALPHA and other physical characteristics of the aquifer, the validity of conditions required in order to represent unconfined flow by integrodifferential equations, and the behaviour of unconfined aquifers at large values of time. The present paper offers a perspective from the author's viewpoint on these and other related issues. (A)

Original languageEnglish (US)
Pages (from-to)899-908
Number of pages10
JournalWater Resources Research
Volume15
Issue number4 , Aug. 1979
StatePublished - 1979
Externally publishedYes

Fingerprint

Aquifers
aquifers
unconfined aquifer
aquifer
Integrodifferential equations
pumping
hydraulics
well
fluid mechanics
mathematical models
Hydraulics
Mathematical models
opinion

ASJC Scopus subject areas

  • Aquatic Science
  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology

Cite this

Perspective on 'delayed yield'. / Neuman, Shlomo P.

In: Water Resources Research, Vol. 15, No. 4 , Aug. 1979, 1979, p. 899-908.

Research output: Contribution to journalArticle

Neuman, SP 1979, 'Perspective on 'delayed yield'.', Water Resources Research, vol. 15, no. 4 , Aug. 1979, pp. 899-908.
Neuman, Shlomo P. / Perspective on 'delayed yield'. In: Water Resources Research. 1979 ; Vol. 15, No. 4 , Aug. 1979. pp. 899-908.
@article{e902c62aece84507bcf5f6f7b57930e7,
title = "Perspective on 'delayed yield'.",
abstract = "The phenomenon of 'delayed yield' has received wide attention in the literature during recent years. Considerable work has been devoted to the development of physically based mathematical models capable of successfully reproducing observed aquifer behaviour. As a result of this effort, there appears to be at present a consensus of opinion among the main contributors to the theory of delayed yield as to an acceptable physical and mathematical interpretation of this phenomemon. In spite of this apparent consensus of opinion, there is still a considerable amount of controversy in the literature about some fundamental aspects of unconfined well hydraulics. The outstanding issues concern the physical assumptions underlying various delayed yield models, changes in the flow regime of an unconfined aquifer as a function of radial distance from the pumping well, the relationship between Boulton's ALPHA and other physical characteristics of the aquifer, the validity of conditions required in order to represent unconfined flow by integrodifferential equations, and the behaviour of unconfined aquifers at large values of time. The present paper offers a perspective from the author's viewpoint on these and other related issues. (A)",
author = "Neuman, {Shlomo P}",
year = "1979",
language = "English (US)",
volume = "15",
pages = "899--908",
journal = "Water Resources Research",
issn = "0043-1397",
publisher = "American Geophysical Union",
number = "4 , Aug. 1979",

}

TY - JOUR

T1 - Perspective on 'delayed yield'.

AU - Neuman, Shlomo P

PY - 1979

Y1 - 1979

N2 - The phenomenon of 'delayed yield' has received wide attention in the literature during recent years. Considerable work has been devoted to the development of physically based mathematical models capable of successfully reproducing observed aquifer behaviour. As a result of this effort, there appears to be at present a consensus of opinion among the main contributors to the theory of delayed yield as to an acceptable physical and mathematical interpretation of this phenomemon. In spite of this apparent consensus of opinion, there is still a considerable amount of controversy in the literature about some fundamental aspects of unconfined well hydraulics. The outstanding issues concern the physical assumptions underlying various delayed yield models, changes in the flow regime of an unconfined aquifer as a function of radial distance from the pumping well, the relationship between Boulton's ALPHA and other physical characteristics of the aquifer, the validity of conditions required in order to represent unconfined flow by integrodifferential equations, and the behaviour of unconfined aquifers at large values of time. The present paper offers a perspective from the author's viewpoint on these and other related issues. (A)

AB - The phenomenon of 'delayed yield' has received wide attention in the literature during recent years. Considerable work has been devoted to the development of physically based mathematical models capable of successfully reproducing observed aquifer behaviour. As a result of this effort, there appears to be at present a consensus of opinion among the main contributors to the theory of delayed yield as to an acceptable physical and mathematical interpretation of this phenomemon. In spite of this apparent consensus of opinion, there is still a considerable amount of controversy in the literature about some fundamental aspects of unconfined well hydraulics. The outstanding issues concern the physical assumptions underlying various delayed yield models, changes in the flow regime of an unconfined aquifer as a function of radial distance from the pumping well, the relationship between Boulton's ALPHA and other physical characteristics of the aquifer, the validity of conditions required in order to represent unconfined flow by integrodifferential equations, and the behaviour of unconfined aquifers at large values of time. The present paper offers a perspective from the author's viewpoint on these and other related issues. (A)

UR - http://www.scopus.com/inward/record.url?scp=0018299035&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0018299035&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0018299035

VL - 15

SP - 899

EP - 908

JO - Water Resources Research

JF - Water Resources Research

SN - 0043-1397

IS - 4 , Aug. 1979

ER -