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Input Definitions

• origin is a 3,1 matrix with the x,y,z values of the center point of the outlet of the first sedimentation tank
• width~sed~ width _sed is the distance between the outlets of the sedimentation tanks or the width of the sedimentation tanks from the center line of the wall on either side of a tank
• lvltank~dim~ lvltank _dim is a 3,1 matrix with the x,y,z dimensions of the tank
• Δ x is the distance in the x direction in a top view from the outlet of the first sedimentation tank (or the origin of the first pipe) to the outside wall of the leveling tank
• Δ y is the distance in the y direction in a top view from the outlet of the first sedimentation tank (or the origin of the first pipe) to the outside wall of the leveling tank
• Δ z is the distance in the z direction in a top view from the outlet of the first sedimentation tank (or the origin of the first pipe) to the bottom wall of the platform
• lvltank~thick~ lvltank _thick is the thickness of the walls of the leveling tank
• thick~platform~ thick _platform is the thickness of the platform
• R1 is the inner radius of the pipes leading to the leveling tank
• R~main~ R _main is the inner radius of the effluent pipe
• H~main~ H _main is the height of the effluent pipe (or the water level in the leveling tank)
• n is the number of sedimentation tanks
• disp is the displacement of the center of the pipes coming up into the leveling tanks from the inside wall of the tank

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Step by Step Description

The Sed~eff~ Sed _eff program is composed of three scripts. The program will run Sedeff . _script1 when n is 3, Sedeff . _script2 when n is 4 and Sedeff . _script3 when n is 5. Because the most common number of sedimentation tanks is three, the output of Sedeff . _script1 will be described below.

Some points and values which will be used several times in the script are defined outside of the script so as to make it cleaner. These variables will be pseudo inputs for Sedeff . _script1. They are listed below and will be described in greater detail further down.

• pipe2 . _origin, pipe3 . _origin, pipe4 . _origin, pipe5 . _origin, pipe6 . _origin, elbow1 . _origin, pipe7 . _origin, tank . _origin, main . _origin, origin, lvltank . _dim, Δx, Δy, Δz, tank . _thick, thick . _platform, width . _sed, R1, R . _main, H . _main, n, disp

Pseudo Inputs

pipe3_origin

pipe4_origin

pipe5_origin

pipe6_origin

elbow1_origin

pipe7_origin

tank_origin

main_origin

origin

lvltank_dim

Δx

Δy

Δz

thick_tank

thick_platform

width_sed

R1

R_main

H_main

n - number of sedimentation tanks to be drawn by the program.

disp

layer1 - Creates a 'lvlpipe' layer for all of the pipes (except the "main" pipe) in the program

Pipe1 - Creates a pipe with a radius of R1 and an origin at the variable "origin". See Pipe Help for details on the pipe function.

Pipe1 Length = Δx + thick _tank + offset - ElbowRadius
Notes:

• Pipe1 Length is not a variable, the values are inputed directly into the pipe function
• offset is a function which divides the x dimension of the level tank by the number of sedimentation tanks, so as to evenly space the inlet pipes to the tank.
• ElbowRadius is the radius of curvature of an elbow. In the script it is given as a function of the inner radius. This function is defined in the Pipe Database program

Rotate1 - Pipe 1 is rotated using the Rotate3d function so that from a top view it is oriented in the west to east direction

p1:

• x: origin₀ + R1
• y: origin₁
• z: origin₂

p2: origin

axis: "y"

ϕ: -90

Pipe2 - Creates a pipe with a radius of R1 and an origin at the variable "pipe2_origin".

pipe2 _origin =

• x: x,origin - Pipe1 Length
• y: y,origin + ElbowRadius
• z: z,origin

Pipe2 Length = Δy - 2ElbowRadius + thick _tank + disp

Rotate2 - Pipe 2 is rotated using the Rotate3d function so it is oriented north to south in top view

p1:

• x: pipe2_origin0 + R1
• y: pipe2_origin1
• z: pipe2_origin2

p2: pipe2_origin

axis: "x"

ϕ: -90

Pipe3 -Creates a pipe with a radius of R1 and an origin at the variable "pipe3_origin".

Pipe3 Length = Δx + thick_tank + 2offset(lvltank_dim0,n) - elbowRadius(2R1)

Rotate3 Pipe 3 is rotated using the Rotate3d function so that from a top view it is oriented in the west to east direction

p1:

• x: pipe3_origin0 + R1
• y: pipe3_origin1
• z: pipe3_origin2

p2: pipe3_origin

axis: "y"

ϕ: -90

Pipe4 -Creates a pipe with a radius of R1 and an origin at the variable "pipe4_origin".

Pipe4 Length = Δy + width_sed - 2ElbowRadius(2R1) + thick_tank + disp

Rotate4 Pipe 4 is rotated using the Rotate3d function so that from a top view it is oriented in the west to east direction.

p1:

• x: pipe4_origin0 + R1
• y: pipe4_origin1
• z: pipe4_origin2

p2: pipe4_origin

axis: "y"

ϕ: -90

Pipe5 -Creates a pipe with a radius of R1 and an origin at the variable "pipe5_origin".

Pipe5 length: Δx + thick_tank + 3offset(lvltank_dim0,n) - ElbowRadius(2R1)

Rotate5 Pipe 5 is rotated using the Rotate3d function so that from a top view it is oriented in the west to east direction.

P1:

• x: pipe5_origin0 + R1
• y: pipe5_origin1
• z: pipe5_origin2

p2: pipe5_origin

axis: "y"

ϕ: -90

Pipe6 -Creates a pipe with a radius of R1 and an origin at the variable "pipe6_origin".

Pipe6 length: Δy + 2wideth_sed - 2ElbowRadius(2R1) + thick_tank + disp

Rotate6 - Pipe 6 is rotated using the Rotate3d function so it is oriented north to south in top view

Pipe7 -Creates a pipe with a radius of R1 and an origin at the variable "pipe7_origin".

Pipe7 length: Δz - ElbowRadius(2R1) + thick_platform

zoom_win1 - Zoom_wincreates a close-up window by using two points to specify the window size the object is to be viewed in.

p1: tank_origin

p2:

• x: tank_origin0 - lvltank_dim0
• y: tank_origin1 + lvltank_dim1
• z: tank_origin2

Copy5 - CopyCcreates a copy of the selected objects based on four chosen points.

p1:

• x: pipe7_origin0 + R1
• y: pipe7_origin1
• z: pipe7_origin2

p2: pipe7_origin

p3:

• x: -offset(lvltank_dim0,n)
• y: 0
• z: 0

p4:

• x: -2offset(lvltank_dim0,n)
• y: 0
• z: 0

Pipe8 -Creates a pipe with a radius of R_main and an origin at the variable "main_origin".

Pipe8 length: H_main + thick_platform + Δz

layer2 - Layer_set select the layer "0"

layer3 - Layer_freeze is used to freeze the layer "lvlpipe."

layer4 - Layer_new is used to create a new, green layer "lvlelbow."

Elbow1 - Calls the Elbow Program program to build an elbow with the origin elbow1_origin and an inner radius, R1.

Rotate7 - Pipe 7 is rotated using the Rotate3d function so...

p1:

• x: elbow1_origin0
• y: elbow1_origin1 + ElbowRadius(2R1)
• z: elbow1_origin2

p2:

• x: elbow1_origin0
• y: elbow1_origin1 + ElbowRadius(2R1)
• z: elbow1_origin2

axis: "z"

ϕ: -180

zoom_win2

Copy1 - CopyBcreates a copy of the selected objects based on three chosen points.

p1: pipe2_origin

p2: pipe2_origin

p3: pipe4_origin

Copy2 - CopyBcreates a copy of the selected objects based on three chosen points.

p1: pipe2_origin

p2: pipe2_origin

p3: pipe6_origin

Copy3 - CopyBcreates a copy of the selected objects based on three chosen points.

p1: pipe2_origin

p2: pipe2_origin

p3: pipe11

Rotate8 - Pipe 2 is rotated using the Rotate3d function so it is oriented north to south in top view

p1:

• x: pipe2_origin0
• y: pipe2_origin1 + (Δy - 2ElbowRadius(2R1) + thick_tank + disp)
• z: pipe2_origin2

p2:

• x: pipe2_origin0
• y: pipe2_origin1 + (Δy - 2ElbowRadius(2R1) + thick_tank + disp)
• z: pipe2_origin2

axis: "x"

ϕ: \180

Rotate9 - Pipe 2 is rotated using the Rotate3d function so that from a top view it is oriented in the west to east direction.

p1:

• x: pipe2_origin0
• y: pipe2_origin1 + (Δy - 2ElbowRadius(2R1) + thick_tank + disp
• z: pipe2_origin2

p2:

• x: pipe2_origin0
• y: pipe2_origin1 + (Δy - 2ElbowRadius(2R1) + thick_tank + disp
• z: pipe2_origin2

axis: "y"

ϕ: -90

Copy4 CopyCcreates a copy of the selected objects based on four chosen points.

p1:

• x: pipe2_origin0
• y: pipe2_origin1 + (Δy - 2ElbowRadius(2R1) + thick_tank + disp
• z: pipe2_origin2

p2:

• x: pipe2_origin0
• y: pipe2_origin1 + (Δy - 2ElbowRadius(2R1) + thick_tank + disp
• z: pipe2_origin2

p3:

• x: -offset(lvltank_dim0,n)
• y: 0
• z: 0

p4:

• x: -2offset(lvltank_dim0,n)
• y: 0
• z: 0

layer5 - Layer_set select the layer "0"

layer6 - Layer_freeze freezes the layer "lvlelbow."

layer7 - Layer_new creates a new grey layer "lvltank."

Tank - Calls the Tank Program program to build a tank with the origin tank_origin, tank dimensions tank_dim and thickness thick_tank.

tank_origin - a 3 by 1 matrix with x,y,z positions corresponding to the point where the tank will be drawn

tank_dim - a 3 by 1 matrix with x,y,z positions corresponding to the length, width and height dimensions of the tank

• x: tank.dim₀ = length
• y: tank.dim₁ = width
• z: tank.dim₂ = height

thick - the thickness of the wall of the tank

layer8 - Layer_thaw unfreezes the layer "lvlpipe."

layer9 - Layer_thaw unfreezes the layer "lvlelbow."

layer10 - Layer_set select the layer "lvlpipe."

cylinder - CylinderCcreates a cylinder based on a point, radius and length.

p1: main_origin

R1: R_main

L: H_main + thick_platform + Δz

subtract -SubtractD subtracts based on two points.

p1: tank_origin

p2:

• x: main_origin0 + R_main
• y: main_origin1
• z: main_origin2

one

two

three

return