Transient solution for radial two-zone flow in unconfined aquifers under constant-head tests

2010 ◽  
Vol 24 (11) ◽  
pp. 1496-1503 ◽  
Author(s):  
Y. C. Chang ◽  
H. D. Yeh ◽  
G. Y. Chen
Keyword(s):  
Transient Solution ◽  
Unconfined Aquifers ◽  
Constant Head

scholarly journals A Preliminary Study on a Pumping Well Capturing Groundwater in an Unconfined Aquifer with Mountain-Front Recharge from Segmental Inflow

Water ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1243
Author(s):  
Haixiang Li ◽  
Xu-sheng Wang
Keyword(s):  
Water Supply ◽  
Unconfined Aquifer ◽  
Shape Factors ◽  
Unconfined Aquifers ◽  
Capture Zones ◽  
Pumping Wells ◽  
Travel Time Distribution ◽  
Mountain Front ◽  
Constant Head ◽  
A Site

Unconfined aquifers beneath piedmont pluvial fans are widely distributed in front of mountains and proper for water supply with pumping wells. However, the catchment zone and capture zones of a pumping well in such an unconfined aquifer is not well known. We develop a preliminary simplified model where groundwater flows between a segmental inflow boundary and a discharge boundary of constant head. The catchment zone is delineated from numerical simulation via MODFLOW and MODPATH. Results are expressed with dimensionless variables and lumped parameters to show general behaviors. Sensitive analyses indicate that there are 4 types of the catchment zone according to different connections to the boundaries. The shape of the catchment zone is quantitatively analyzed with typical shape factors. Capture zones with respect to special travel times are identified from travel time distribution in the catchment zone. The modeling results can be applied in the design of water supply wells and delineation of protection zones at a site with similar hydrogeological conditions.

Effects of Inclination Angle on Archimedes Screw Generator Power Production with Constant Head

2021 ◽  
Vol 147 (3) ◽  
pp. 04021001
Author(s):  
Scott Simmons ◽  
Guilhem Dellinger ◽  
Murray Lyons ◽  
Abdelali Terfous ◽  
Abdellah Ghenaim ◽  
...  
Keyword(s):  
Inclination Angle ◽  
Power Production ◽  
Constant Head

Transient Solution of Acyclic Markov Chains.

1985 ◽  
Author(s):  
Raymond Marie ◽  
Andrew Reibman ◽  
Kishor Trivedi
Keyword(s):  
Markov Chains ◽  
Transient Solution

CHARACTERIZING UNCONFINED AQUIFERS USING SEEP- AND STREAM-BASED MEASUREMENTS OF GROUNDWATER AGE

2016 ◽  
Author(s):  
D. Kip Solomon ◽  
◽  
Troy E. Gilmore ◽  
David P. Genereux ◽  
Jennifer Georgek ◽  
...  
Keyword(s):  
Groundwater Age ◽  
Unconfined Aquifers

Virus transport from drywells under constant head conditions: A modeling study

2021 ◽  
Vol 197 ◽  
pp. 117040
Author(s):  
Salini Sasidharan ◽  
Scott A. Bradford ◽  
Jiří Šimůnek ◽  
Stephen R. Kraemer
Keyword(s):  
Virus Transport ◽  
Constant Head ◽  
Modeling Study

An alternative transient solution for semi-Markov queuing systems

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Revaz Kakubava
Keyword(s):  
Queuing System ◽  
Queuing Systems ◽  
Transient Solution ◽  
Methods Of Analysis ◽  
Supplementary Variables ◽  
Probabilistic Argumentation

AbstractBy using a purely probabilistic argumentation, two theorems are proved. They simplify the existing methods of analysis for the {M/G/1} queuing system by means of the supplementary variables method.

Fluoride Hazard and Risk Enumeration of Hard Rock Unconfined Aquifers in the Extended Part of Chhota Nagpur Gneissic Complex

2021 ◽  
Vol 97 (2) ◽  
pp. 199-209
Author(s):  
Biswajit Bera ◽  
Sumana Bhattacharjee ◽  
Meelan Chamling ◽  
Arijit Ghosh ◽  
Nairita Sengupta
Keyword(s):  
Hard Rock ◽  
Unconfined Aquifers ◽  
Hazard And Risk
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