WSP11706

• File Number: 8271.300
• Description: Colorado River Basin Salinity Control Program - General Information and Publications-Reports
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1980
• Title: Development of Procedures to Evaluate Salinity Management Strategies in Irrigation Return Flows
• Water Supply Pro - Doc Type: Report/Study

Tahle 3.5. Continued.

Reference

Konikov, L. F.
and J, D,
Bredehoeft 1978

'"
...,

Constituents
nodeled

Solute con-
centration

Major assunptions Input data
~lity mxlel_.____~~~ts

increase in concentration in
recharge water is proportional
to the decrease in vol1..llIe due
to ET.

1. Darcy's law is valid and
hydraulic-head gradients are
the only significant driving
mechanism for fluid flow.
2. The porosity and hydraulic
conductivity of the aquifer
are constant with time, and
porosity is uniform in space.
3. Gradients of fluid density,
viscosity, and temperature
do not affect the velocity
distribution.
4. No chemical reactions occur
th.:3.t affect the concentration
of the solute, the fluid
properties. or the aquifer
properties.
5, Ionic and nnlecular diffusion
are negligible contributors
to the total dispersive flux.
6. Vertical variations in head
and concentration are
negligible.
7. The aquifer is harogeneous
and isotropic with respect
to the coefficients of longi-
tudinal and transverse dis-
persi vity .

Bolmdary condi-
tions, aquifer
characteristics,
stresses

TiIre
increment

variable
(minutes
to years)

Corrments

The program solves tvvo
sim.Iltaneous partial
differential equations,
one is the groundwater
flow equation, and the
other is the solute
transport equation.
The asstmption DUlSt be
carefully evaluated
before applying the model
to a field problem.

S~&E

Model
Application

A Theoretical
nndel, dem.m-
strated with
analytical solu-
tions to
idealized prob-
lems.

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