https://www.ajdesigner.com/phpwell/unconfined_aquifer_equation_flow_rate.php

Unconfined aquifer well calculator solving for flow rate given permeability coefficient, ... the cone of depression and well drawdown in an unconfined aquifer.

http://www.aqtesolv.com/theis-unconfined.htm

Equations. The Theis (1935) solution may be used for the interpretation of pumping tests in unconfined aquifers through the application of the following simple correction to drawdown data measured during a test ...

http://www.hwe.org.ps/Education/Birzeit/GroundwaterEngineering/Chapter%203%20-%20Groundwater%20Flow%20to%20Wells.pdf

Pumping well with observation wells in unconfined aquifer. Figure 6.3 ..... This equation fails to give an accurate description of the drawdown near the well where.

http://content.alterra.wur.nl/Internet/webdocs/ilri-publicaties/publicaties/Pub47/Pub47-h5.pdf

Figure 5.1 shows a pumped unconfined aquifer underlain by an aquiclude. The pump- .... constants. Neuman's drawdown equation (Neuman 1975) reads.

https://pubs.usgs.gov/circ/circ1186/html/boxa.html

Confined and Unconfined Aquifers Respond Differently to Pumping ... Inspection of Figure A-3 shows that drawdowns in the confined aquifer are always larger ...

https://pubs.usgs.gov/of/1990/ofr90-183/pdf/ofr_90-183_e.pdf

As pumping proceeds, a decline in head or drawdown propagates away from the ..... and unconfined aquifers using the Thiem and Dupuit-Thiem equations.

http://www.yourarticlelibrary.com/water/groundwater/calculation-of-discharge-in-confined-and-unconfined-aquifer/61128

The above equation is called equilibrium or Thiem's equation and is used to determine piezometric ... Calculation of Discharge in Unconfined Aquifer Using Theim's Formula for Steady Flow: ... After drawdown depth of water is 12 m in the well.

https://nptel.ac.in/courses/105105110/pdf/m2l07.pdf

Mathematical equations for water flow to wells in unconfined aquifers. 4. Determination of the ... yield as the drawdown of one influences the other. This may be ...

http://www.engr.usask.ca/classes/GEOE/475/notes/Unit04-htests.ppt

The equation for unconfined flow can be rearranged to give: ... assumption may not be valid in the immediate vicinity of a pumping well in an unconfined aquifer.

https://arxiv.org/pdf/1304.3987

Apr 15, 2013 ... the Laplace equation for groundwater flow, and was the first to account for .... time -drawdown plot in an unconfined aquifer has a characteristic ...