Deep & Wide - CFD in Civil Engineering VoF in Civil Engineering - - PowerPoint PPT Presentation

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VoF in Civil Engineering

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Deep & Wide - CFD in Civil Engineering

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VoF in Civil Engineering

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Deep & Wide - CFD in Civil Engineering

Emission Prediciton Component Simulation Environmental Aerodynamics

Process Engineering

Fire- and Smoke-Simulation Thermal Simulation Jet Fans Building Aerodynamics Aeroelastic Energy Systems Hydraulic Engineering CO2-Footprint Aeroacoustics

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VoF in Civil Engineering

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External Aerodynamics & Windloads

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VoF in Civil Engineering

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External Aerodynamics & Windloads

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Automotive Test Rig Design

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Conjugate Heat Transfer

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VoF in Civil Engineering

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From the Drain to the Tap - VoF in Civil Engineering

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VoF in Civil Engineering

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Overview

> Water's Way through the Underground > Where VoF can be a useful tool > Three examples in sewerage > Limitations > Summary

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VoF in Civil Engineering

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Water's Way Through the Underground

> Where does it come from? > How was it treated? > How is it used? > Where will it go? > Who will use it next?

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VoF in Civil Engineering

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Water's Way Through the Underground

> The well known Hydro Cycle

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VoF in Civil Engineering

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Water's Way Through the Underground

> The Urban Water "Cycle"

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Where VoF can be a useful Tool

> The Urban Water Cycle

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Three Examples of VOF in Drainage Systems

> Overflow from Storm Tank > Combined Sewer Overflow (CSO) > High Load Primary Settling Tank

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Overflow from Storm Tank

inlet channel

> Scheme of WWTP and StWT > Scheme of StWT

StWT discharge discharge channel towards Rhein

• dour stopper

WWTP StWT

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VoF in Civil Engineering

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Overflow from Storm Tank

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VoF in Civil Engineering

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0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0

QMIHABE [m3/s] Höhe über Überfallkante [m] Niveau Becken 1/2 MIHABE idealer Überfall 0.8075 Niveau Becken 3/4 MIHABE hmaxSOLL Instrumente breitkroniges Wehr 0.577

4.5 m3/s (Ausreisser) 2.6 m3/s 3.6 m3/s 3.0 m3/s 2.8 m3/s 2.2 m3/s 4.0 m3/s 3.9 m3/s 3.9 m3/s 3.5 m3/s 1.9 m3/s (Ausreisser) 3.0 m3/s

Overflow from Storm Tank How State of the Art looks like

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246 247 248 249 250 251 252 253 254 10 20 30 40 50 60 70 80 90 Distanz [m] Kote [m ü.M.] Kanalsohle Q = 6.0 m3/s Kanaldecke Überfallkante EL ARA-Kanal WS ARA-Kanal

Overflow from Strom Tank How State of the Art looks like

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Overflow from Storm Tank the model

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VoF in Civil Engineering

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Overflow from Storm Tank the model

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Overflow from Storm Tank as-is state

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VoF in Civil Engineering

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Overflow from Storm Tank as-is state

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VoF in Civil Engineering

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Overflow from Storm Tank as-is state

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> slope to prevent the air pumping

> sluice at odour stopper > higher slope in collector channel

Overflow from Storm Tank

• ptimisation

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VoF in Civil Engineering

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Overflow from Storm Tank

• ptimisation

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VoF in Civil Engineering

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Overflow from Storm Tank

• ptimisation

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VoF in Civil Engineering

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Overflow from Storm Tank

• ptimisation

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VoF in Civil Engineering

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Combined Sewer Overflow

CSO chamber west storm tank overflow storm tank storm tank inlet

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Combined Sewer Overflow

CSO chamber west storm tank overflow part of storm tank storm tank inlet

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High Load Primary Settling Tank

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Limitations

> Initial Conditions! > Boundary Conditions! > Computational Limitations! > Post Processing Transient Results!

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Summary

> State of the art are 1D St. Venant equations > VOF is an useful tool in urban water management in order to shed light on complex structures