Combining ArcView and naUTilus for Municipal Sewers

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Combining ArcView and naUTilus for Municipal
Sewers

• By Kimberly Martin
• CE 394K.3 GIS in Water Resources
• 21 November 2000

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Combining ArcView and naUTilus for Municipal
Sewers

• Background on naUTilus
• AcrView / naUTilus Link
• Application to Austin
• Current Project Status

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Overview of naUTilus

• Estimate VOC emissions from industrial sewer
  networks
• Fundamental Principles
• Fluid Mechanics
• Mass Transfer
• Fortran-based computer model
• Text-only Input and Output

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naUTilus Model

• Sewer Characteristics
• Branch Diameter
• Slope
• Drop Height
• Node Type
• Junction
• Manhole
• Drain
• Flow Data
• Concentration
• Temperature

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Downfall of naUTilus
USER FRIENDLY?
No !
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ArcView / naUTilus Interface

• Developed by Cindy How
• 33 Avenue Scripts
• Graphical User Interface
• Input Flow Data and Sewer Characteristics

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Austin Sewer System

• 70,000 Sewer Stretches
• 70,000 Manholes
• Includes Abandoned and Proposed Sewers

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Sewer Selection

• Research Project
• VOC Tracer Studies
• Model Calibration
• Large Scale Modeling of Municipal Sewer Emissions

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Procedure
Injection Point
Sampling Point 1

• Data Acquisition
• Use network features in Arc/Info
• Divide sewer network
• Apply naUTilus interface in ArcView
• Estimate missing parameters

Sampling Point 2
Sampling Point 3
To Treatment Plant
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Anticipated Results

• Visual display of emission results from OSBL
• Compare emission values with experimental results

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Future Work

• This semester
• Get the interface working
• Model first experimental stretch
• In the next 18 months
• Model the other three experimental stretches
• Adjust model as necessary for municipal
  applications
• Model a large municipal sewer network