Estimating steady infiltration rate times for infiltrometers and permeameters

Estimating steady infiltration rate times for infiltrometers and permeameters In the in situ determination of hydraulic conductivity most procedures are based on a close attainment of steady state infiltration. The accuracy of the measurement is therefore dependent on both the degree to which steady state flow is attained and the validity of the assumptions in the analysis procedure. Several approximate analytical solutions of one‐dimensional and three‐dimensional flow provide reasonable estimates of both transient and steady state infiltration compared to the corresponding numerical solutions. Three‐dimensional infiltration initially approaches steady state flow much faster than one‐dimensional infiltration, but at some point close to steady flow and dependent on soil properties, one‐dimensional infiltration approaches steady state faster. Some practical answers are supplied on the time required to reach reasonable estimates of steady state flow, the amount of water used, and the distance to the wetting front for a range of soil properties. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Resources Research Wiley

Estimating steady infiltration rate times for infiltrometers and permeameters

Loading next page...
 
/lp/wiley/estimating-steady-infiltration-rate-times-for-infiltrometers-and-bCsKGcvexW
Publisher
Wiley
Copyright
Copyright © 1990 by the American Geophysical Union.
ISSN
0043-1397
eISSN
1944-7973
DOI
10.1029/WR026i004p00759
Publisher site
See Article on Publisher Site

Abstract

In the in situ determination of hydraulic conductivity most procedures are based on a close attainment of steady state infiltration. The accuracy of the measurement is therefore dependent on both the degree to which steady state flow is attained and the validity of the assumptions in the analysis procedure. Several approximate analytical solutions of one‐dimensional and three‐dimensional flow provide reasonable estimates of both transient and steady state infiltration compared to the corresponding numerical solutions. Three‐dimensional infiltration initially approaches steady state flow much faster than one‐dimensional infiltration, but at some point close to steady flow and dependent on soil properties, one‐dimensional infiltration approaches steady state faster. Some practical answers are supplied on the time required to reach reasonable estimates of steady state flow, the amount of water used, and the distance to the wetting front for a range of soil properties.

Journal

Water Resources ResearchWiley

Published: Apr 1, 1990

References

  • The three‐parameter infiltration equation
    Parlange, Parlange; Lisle, Lisle; Braddock, Braddock; Smith, Smith
  • Steady infiltration from buried discs and other sources
    Philip, Philip
  • Regression models for hydraulic conductivity and field test of the borehole permeameter
    Stephens, Stephens; Lambert, Lambert; Watson, Watson
  • Macroscopic and microscopic capillary length and time scales from field infiltration
    White, White; Sully, Sully

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off