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ANSDIMAT

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ANSDIMAT software
About ANSDIMAT
Main menu
Notation
Main notation
Hydraulic parameters
Special functions
Methods of analysis
Analytical module operation
Data input (Editor)
Table data input
Observation time
Drawdown
Constant rate
Variable rate
Distance to the observation well
Screen level
Well data
Time of recovery measurements
Recovery
Last drawdown
Оbservation well data
Options
Choose conceptual scheme
Test conditions
Diagnostic plot
Plot construction
Choose plot
Select wells
Select time
Plot view
Axis properties
Observation data symbols
Caption and subscription
Basic types of diagnostic graphs
Graphs based on observations in two wells
Some special graphs and graphs of dimensionless parameters
View graphs
Rate plot
Stepwise rate approximation
Viewing data, removing measurements
Saving data
Settings
Aquifer tests analysis
Matching parameters (solving direct problem)
Value assignment
Theoretical curve features
Parameter calculation
Data correction
Graphical analysis
Strait-line method
Slug test
Method of type curve
Search for strait-line segment
Bisecting line method
Inverse problem solution
Less square method
UCODE
Conceptual schemes
Confined aquifer
Infinite aquifer
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Semiinfinite aquifer
Recharge boundary
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
No-flow boundary
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Bounded (strip) aquifer
Recharge boundaries
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
No-flow boundaries
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Recharge and no-flow boundaries
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Point source
Aquifer of infinite extent and thickness
One well pumped at a constant rate
Several wells pumped at a constant rate
Several wells pumped at a variable rate
Semiinfinite aquifer
Recharge boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
Bounded aquifer
Recharge boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Recharge and no-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Linear source
Aquifer of infinite extent and thickness
One well pumped at a constant rate
Several wells pumped at a variable rate
Semiinfinite aquifer
Recharge boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
Bounded aquifer
Recharge boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Recharge and no-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Unconfined aquifer
Aquifer of infinite lateral extent
One well pumped at a constant rate
Bounded aquifers. Several wells pumped at a variable rate
Pumping
Leaky aquifer
Constant level in the adjacent aquifer
Infinite leaky aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Bounded leaky aquifer. Several wells pumped at a variable rate
Pumping
Alternating water level in the adjacent aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Conceptual scheme accounting for aquitard storage
One well pumped at a constant rate
Several wells pumped at a variable rate
Leaky aquifer anisitropic on the vertical plane
One well pumped at a constant rate
Several wells pumped at a variable rate
Two-layer aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Stratified aquifer systems
Three-layer aquifer system
One well pumped at a constant rate
Two-layer aquifer system
One well pumped at a constant rate
Arealy heterogeneous aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Pumping near river
One well pumped at a constant rate
Several wells pumped at a variable rate
Sloping aquifer
One well pumped at a constant rate
Fracture-porous media
Moench’s solutions
Vertical fracture
Horizontal fracture
Constant-head test
One well pumped at a constant drawdown
Slug test
Cooper's solution, Picking's solution
Bouwer-Rice's solution
Hvorslev's solutions
AMWELLS
Starting a new model
Modeling environment
Model size and dimensions
Plot scale
Model boundaries
Wells and time measurements
Well system design
Variable production rate
Model parameters
Hydrograph
Piezometric head and drawdown maps
Plot
Distance measure tool
Background maps
Model grid mode
Classes for map
Trace selected range
Animation
3-D View and animation
Plot profiles
Export to ANSDIMAT
Wellhead Protection Areas (WHPA)
Pit dewatering
Pit layout
Dewatering by abstraction wells
Dewatering by in-pit sumps
Pit Inflow
Model
Model creation
Model editing
Graphic editor
Modify values
Parameter selection
Plot construction
Grouping
Measuring distance
Legend creation
Heterogeneity zones (MODFE)
Generate the model grid (MODFE)
Generate the model grid (RADFLOW)
Input parameters
Entering the pumping well
Running MODFE program
Calculation parameters
Time parameters
Running RADFLOW program
Calculation parameters
Viewing results (postprocessor)
Load calculation results
Animation

Notation >

Main notation

Notation

Symbol

Explanation

Dimension

A

Y-intercept of straight line (for straight-line method)

 

a

hydraulic diffusivity

m2/d

az

hydraulic diffusivity in vertical direction

m2/d

B

leakage factor

m

C

slope (for straight-line method)

 

D

vertical distance between axes observation plot and type curve plot

 

d

distance between pumping and observation well screen centers

m

E

horizontal distance between axes of observation plot and type curve plot

 

f1, f2

drawdown function values in the first and second observation wells (for method of bisecting line)

 

k

hydraulic conductivity

m/d

kr

hydraulic conductivity in horizontal direction

m/d

kz

hydraulic conductivity in vertical direction

m/d

L

strip aquifer width

m

Lp

horizontal distance from observation well to the boundary

m

Lw

horizontal distance from pumping well to the boundary

m

lp

observation well screen length

m

lw

pumping well screen length

m

M(u, β)

special function

 

m

aquifer thickness or initial water saturated thickness of unconfined aquifer (distance from aquifer bottom to water table)

m

N

number of pumping wells

 

n

number of reflections from one boundary

 

number of rate steps in the i-th well at j-th rate step

 

Q

rate of pumping well

m3/d

j-th step rate value in the i-th pumping well

m3/d

r

horizontal distance between pumping and observation wells

m

radius of pumping well casing

m

rw

radius of pumping well

m

S

storage coefficient

Dimensionless

Ss

specific storage

1/m

Sy

specific yield

Dimensionless

s

drawdown (recovery)

m

s0

drawdown in the well at shut-in

m

initial (instantaneous – for slug test) drawdown in the pumping well

m

sm

drawdown at steady-state

m

sr

recovery counted off from shut-in water level

m

drawdown in the pumping well

m

T

transmissivity

m2/d

t

time

d

t0

duration of pumping

d

tr

time since recovery started

d

time when j-th rate step in the i-th pumping well started

d

u

function argument

 

W(u)

well function

 

W(u, β)

leaky aquifer function

 

z

vertical distances: to aquifer top, to bottom to image well etc; for partially penetrating wells: vertical distance between observation and pumping well screen centers

m

β

function argument

 

ΔL

retardation coefficient

m

ρ

horizontal distance between observation and image wells

m

χ

anisotropy ratio

Dimensionless

τ

variable of integration

 

 

Superscripts and subscripts

Symbol

Explanation

a

relates to aquifer anisotropic on the vertical scale

pumping well number related to bounded aquifers

pumping well number related to infinite and semiinfinite aquifers

reflections from the left (top) or from the right (bottom) boundaries

rate step number related to bounded aquifers

rate step number related to infinite and semiinfinite aquifers

reflection number related to bounded aquifers

p

relates to observation well or piezometer

w

relates to pumping well

1, 2

relates to the first and the second observation wells in solutions based on drawdown in two observation wells

character stroke

relates to aquitard between two aquifers