Primary workflow
Comprehensive ductulator
Use equal-friction and target-velocity methods to select practical round and rectangular ducts, then check an existing candidate against the design target.
01
Define design basisFlow, run length, friction, velocity
02
Size the backbone ductRound recommendation + rectangular alternatives
03
Check an existing candidatePressure drop, velocity, and total run impact
04
Then go to Perforated PolyOnly after the main duct is sane
Recommended backbone
Main recommendation
Main view
Friction target vs stock size vs velocityRound sizing chart
Round options
Nearest stock sizes
| Ø round (in) | Velocity (FPM) | Friction | Vel. pressure |
|---|
Rectangular options
Equivalent suggestions
| Size (in) | Aspect | Velocity (FPM) | Friction |
|---|
Design notes
Warnings and engineering checks
Secondary workflow
Perforated poly duct design
Use the selected backbone duct and fan to estimate greenhouse discharge behavior station-by-station, then iterate the hole pattern and canopy model.
01
Backbone duct already selectedDuctulator completed first
02
Set poly geometryDiameter, length, hole size, spacing
03
Model discharge and canopyJet, drag, deflection, fan curve
04
Review schedule and warningsField-calibrate before production
Live operating state
Standard analysisPerforated poly summary
Main view
Exit velocity distribution along the tubeDuct visualization
Pressure
Static pressure profile
Velocity
Exit velocity profile
Canopy response
Jet decay and canopy velocity
Fan behavior
Operating point
Warnings
Design notes
Implementation
Hole schedule
| # | Pos (ft) | Ø hole (in) | Pressure (Pa) | Exit vel (m/s) | Canopy vel (m/s) | Station flow (CFM) |
|---|