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General Program Information

Inputs Needed to Call the Flocculation Tank Program

Inputs Defined Within the Flocculation Tank Program

Dimensions

totalfloc_dim =

• x: floc_dim0
• y: (numfloc_tanks*floc_dim1) + ((numfloc_tanks - 1)*tank_thick)
• z: floc_dim2

wall_dim =

• x: totalfloc_dim0 + (2tank_thick)
• y: tank_thick
• z: totalfloc_dim2

Origin Points

floc_origin =

• x: tank_origin0
• y: tank_origin1 + num_tanks(tank_dim1 + tank_thick)
• z: tank_origin2

wall_origin =

• x: tank_origin0 - floc_dim0 - tank_thick
• y: tank_origin1 + num_tanks(tank_dim1 + tank_thick) + floc_dim1)
• z: tank_origin2

hole_origin =

• x: tank_origin0 - flochole_dim0
• y: tank_origin1 + num_tanks(tank_dim1 + tank_thick) + floc_dim1
• z: tank_origin2

baffletank1_origin =

• x: tank_origin0 - tank_dim0
• y: tank_origin1 + num_tanks*(tank_dim1 + tank_thick) + floc_dim1 + wall_dim1
• z: tank_origin2

baffletank2_origin =

• x: tank_origin0 - tank_dim0
• y: tank_origin1 + num_tanks*(tank_dim1 + tank_thick)
• z: tank_origin2

Technical Program Outline

layer1 -

layer1 <- layer_new("floctank",dkgrey)

tank1

tank1 <- Tank(floc_origin,totalfloc_dim,tank_thick)

box1 -

box1 <- box(wall_origin,wall_origin + wall_dim)

box2 -

box2 <- box(hole_origin,hole_origin + flochole_dim)

subtract0 -

subtract0 <- subtractD(p1,hole_origin)

p1 =

• x: hole_origin0 + flochole_dim0 + tank_thick
• y: hole_origin1
• z: hole_origin2

union1 -

union1 <- unionC(p1,p2)

p1 =

• x: floc_origin0 - totalfloc_dim0 - tank_thick - zc
• y: floc_origin1 - tank_thick - zc
• z: floc_origin2

p2 =

• x: floc_origin0 + tank_thick + zc
• y: floc_origin1 + totalfloc_dim1 + tank_thick + zc
• z: floc_origin2

box3 -

box3 <- box(p1,p2)

p1 =

• x: floc_origin0 - totalfloc_dim0
• y: floc_origin1 - tank_thick
• z: floc_origin2 + totalfloc_dim2 - channel_dim2

p2 =

• x: floc_origin0 - totalfloc_dim0 + channel_dim1
• y: floc_origin1
• z: floc_origin2 + totalfloc_dim2

subtract1 -

subtract1 <- subtractD(floc_origin,p1)

p1 =

• x: floc_origin0 - floc_dim0
• y: floc_origin1 - tank_thick
• z: floc_origin2 + floc_dim2 - channel_dim2

layerset

layerset <- layer_set("0")

layerfreeze -

This script draws the tank that houses the inner walls and baffles of the floc tank. The script then draws the inner walls and subtracts the ports between the channels. In the case of a vertical flocculator, the ports are drawn at the base of the flocculator. For a horizontal flocculator, the ports heights are set to the height of the floctank.

{float:left|border=2px solid black}
[!Floc Tank Basics.PNG|width=450px!|AutoCAD Channel Program]
Vertical Floc Tank with Wall Removed
{float}

Technical Program Outline

1) A new layer "floctank" is made using the Layer_new function.

2) The Tank program is called by floctanktankscript to draw the outside walls of the flocculation tank.

3) The inner walls, placed to give a uniform channel width, are drawn as iteratively.

4) The ports between channels are both drawn and subtracted from the inner walls iteratively.

5) The "floctank" layer is set to zero.

6) The "floctank layer" is frozen using the Layer_freeze function.layerfreeze <- layer_freeze("floctank")