Smoothed Particle Hydrodynamics in Urban Water Management

Project: SPHASE - Smoothed Particle Hydrodynamics Activated Sludge Engine
Funding organisation: FWF - Der Wissenschaftsfonds

                 fwf logo

Project leader: Wolfgang RAUCH
Project staff: Michael MEISTER, Daniel WINKLER
Cooperation: IWA Working Group on Computational Fluid Dynamics (CFD) for Unit Processes
Project duration: 01.06.2014 - 31.05.2017
Keywords: Water purification, Aerated flows, Fluid mechanics, Smoothed particle hydrodynamics, Numeric computation, Biological kinetics
Scientific topics:

  • 40% 207 Environmental Engineering, Applied Geosciences
  • 20% 102 Computer Sciences
  • 20% 105 Geosciences
  • 20% 201 Construction Engineering

Abstract:

SPH integrated treatment plant

Historically, research in wastewater treatment focused on experimental pilot scale studies. Due to the increase in computational power, computational modelling of treatment plants became more important. Following a model description for a single sludge wastewater treatment system (Henze et al., 1987), the concept of activated sludge modelling (ASM) has been validated by a large number of experiments and is considered as a state-of-the-art concept for modelling biochemical processes. However, this model assumes perfect mixture within the reactor such that the effects of the hydrodynamics are neglected. This is an unphysical simplification and hence the research a few groups extended to the application of computational fluid dynamics (CFD) methods (Le Moullec et al., 2010; Zima et al., 2009; Wang et al., 2010) to simulate the hydrodynamics of wastewater treatment. Resolving the encountered complex multiphase problems proved to be difficult with conventional Eulerian CFD methods.

SPH basics

In this project, a numerical engine for activated sludge modelling (SPHASE) based on the smoothed particle hydrodynamics method (SPH) is developed. Since SPH is a fully Lagrangian meshless CFD method, it is more suitable for simulating the hydrodynamics of treatment plants than Eulerian methods. SPH directly supports multiphase flow (Colagrossi et al., 2003), can incorporate process rates (Aristodemo et al., 2010) and accounts for transport phenomena (Tartakovsky et al., 2007). Further advantages are the easier consideration of reactor geometries, aeration systems and operational changes as well as the straight access to GPU implementations. Hence, SPH is the ideal method for simulating the hydrodynamics in wastewater treatment. The procedure intended in SPHASE is to develop a physically complete two-phase air water flow SPH model, where the oxygen concentration is governed by an advective diffusion equation. Subsequently, computational routines for key physical properties of biochemical processes (e.g. oxygen transfer rate) are added. Since the ASM model is considered as state of the art, the description of the biokinetics will be based on this well-established model. The key point of the project is to couple the locally resolved hydrodynamics to the ASM model such that local effects are considered in the biochemical processes. The coupling interface in SPHASE is provided by the local soluble oxygen concentration (SO). In summary, SPHASE is a fundamental research project with the aim of developing the SPH method further to allow for simulating biophysical processes in environmental engineering with a special focus on the application to wastewater treatment. SPHASE is the first application of SPH in wastewater treatment and therefore should also establish the method in this field. The project has a highly innovative character and its importance extends from the fields of wastewater treatment/water respectively sanitary engineering to fluid mechanics, hydraulics and computer aided simulations.

This research project is funded by the Austrian Science Fund (FWF): Project [P26768-N28]

Additional Links:

Articles in scientific Journals and Conferences:

Publications 2017

Contributions to Books / Journals

Journal Article (Original Paper)
  • Meister, Michael; Winkler, Daniel; Rezavand, Massoud; Rauch, Wolfgang (2017): Integrating hydrodynamics and biokinetics in wastewater treatment modelling by using smoothed particle hydrodynamics.
    In: COMPUTERS & CHEMICAL ENGINEERING 99, pp. 1 - 12. (DOI) (Web link)

Proceedings Article (Full Paper)
  • Rezavand, Massoud; Winkler, Daniel; Rauch, Wolfgang (2017): Integrated Numerical Simulation of Anaerobic Digestion Process Using Smoothed Particle Hydrodynamics.
    In: Crespo, A.J.C.; Gómez-Gesteira, M.; Altomare, C. (Ed.): Proceedings of the 12th International SPHERIC Workshop, Ourense, 13-15 June 2017, Universidade de Vigo, Spain. Vigo: Universidade de Vigo, ISBN 978-84-697-3678-4, pp. 426 - 433.



Publications 2016

Books

Monograph, Scientific
  • Meister, Michael (2016): Smoothed Particle Hydrodynamics in Urban Water Management. Innsbruck: innsbruck university press (IUP) (= Forum Umwelttechnik und Wasserbau, 21). ISBN 978-3-903122-06-2. (Web link)

Contributions to Books / Journals

Journal Article (Original Paper)
  • Meister, Michael; Rauch, Wolfgang (2016): Wastewater treatment modelling with smoothed particle hydrodynamics.
    In: Environmental Modelling & Software 75, pp. 206 - 211. (URN) (DOI) (Web link)

Proceedings Article (Full Paper)
  • Winkler, Daniel; Meister, Michael; Rezavand, Massoud; Rauch, Wolfgang (2016): SPHASE—Smoothed Particle Hydrodynamics in Wastewater Treatment.
    In: Pathak, C.S; Reinhart, D.: Proceedings - World Environmental and Water Resources Congress 2016: Water, Wastewater, and Stormwater and Urban Watershed Symposium. Reston: American Society of Civil Engineering (ASCE), ISBN 978-0-7844-7988-9, pp. 303 - 311. (DOI)

Proceedings Article (Abstract)
  • Meister, Michael; Rauch, Wolfgang (2016): Smoothed particle hydrodynamics - an innovative method for solving fluid dynamics problems in urban water management.
    In: IWA World Water Congress and Exhibition. London: IWA Publishing. (Web link)



Lectures 2016

Presentations at Conferences, Symposia, etc.

Conference Lecture (Invited Plenary / Keynote Lecture)
  • Lecturer(s): Meister, Michael: Assets and Drawbacks of Smoothed Particle Hydrodynamics in Urban Water Management.
    Workshop der Süddeutschen Smoothed Particle Hydrodynamics (SPH), Stuttgart, 2016-11-15. (Web link)

Conference Lecture (Upon Registration)
  • Lecturer(s): Rauch, Wolfgang Co-author(s): Meister, Michael: Smoothed particle hydrodynamics - an innovative method for solving fluid dynamics problems in urban water management.
    IWA World Water Congress and Exhibition, Brisbane, 2016-10-09. (Web link)

  • Lecturer(s): Winkler, Daniel Co-author(s): Meister, Michael; Rezavand, Massoud; Rauch, Wolfgang: SPHASE - Smoothed Particle Hydrodynamics in Wastewater Treatment.
    World Environmental & Water Resources Congress 2016, West Palm Beach, FL, 2016-05-23. (Web link)

Guest Lectures

Guest Lecture
  • Lecturer(s): Meister, Michael: Smoothed Particle Hydrodynamics in Wastewater Treatment – Coupling CFD to Process-Based Biokinetic Wastewater Treatment Models.
    School of Civil Engineering, Leeds, 2016-01-12.



Publications 2015

Contributions to Books / Journals

Journal Article (Original Paper)
  • Meister, Michael; Fleischhacker, Nikolaus; Rauch, Wolfgang (2015): Smoothed Particle Hydrodynamics – partikelbasierte Strömungsberechnung zur Anwendung in der Siedlungswasserwirtschaft.
    In: Österreichische Wasser- und Abfallwirtschaft 67/3-4, pp. 148 - 152. (URN) (DOI) (Web link)

  • Meister, Michael; Rauch, Wolfgang (2015): Modelling aerated flows with smoothed particle hydrodynamics.
    In: Journal of Hydroinformatics 17/4, pp. 493 - 504. (URN) (DOI) (Web link)

Proceedings Article (Full Paper)
  • Meister, Michael; Bergmeister, Christoph; Winkler, Daniel; Rauch, Wolfgang (2015): Activated sludge modelling with smoothed particle hydrodynamics.
    In: E-proceedings of the 36th IAHR World Congress "Deltas of the Future and what happens upstream". 28 June – 3 July, 2015, The Hague, the Netherlands. Madrid: International Association for Hydro-Environment Engineering and Research (IAHR), ISBN 978-90-824846-0-1, pp. 1 - 5. (Web link)



Lectures 2015

Presentations at Conferences, Symposia, etc.

Conference Lecture (Upon Registration)
  • Lecturer(s): Meister, Michael Co-author(s): Bergmeister, Christoph; Winkler, Daniel; Rauch, Wolfgang: Activated sludge modelling with smoothed particle hydrodynamics.
    36th IAHR World Congress (International Association for Hydro-Environment Engineering and Research) - "Deltas of the Future and what happens upstream", Den Haag, 2015-06-29. (Web link)

Lecture at Project Meeting / Research Cooperation Meeting
  • Lecturer(s): Winkler, Daniel: Integrated Wastewater Treatment Modelling with Smoothed Particle Hydrodynamics.
    3rd Winterschool & Retreat of the Doctoral School DK+CIM - Computational Interdisciplinary Modelling, Obergurgl, 2015-11-26. (Web link)

Poster Presentation
  • Lecturer(s): Rezavand, Massoud Co-author(s): Winkler, Daniel; Meister, Michael; Rauch, Wolfgang: Smoothed Particle Hydrodynamics in Environmental Engineering.
    3rd Winterschool & Retreat of the Doctoral School DK+CIM - Computational Interdisciplinary Modelling, Obergurgl, 2015-11-27. (Web link)

  • Lecturer(s): Winkler, Daniel Co-author(s): Meister, Michael: Integrated Wastewater Treatment Modelling with Smoothed Particle Hydrodynamics.
    Retreat of the doctoral school DK+CIM Computational Interdisciplinary Modelling, Innsbruck, 2015-02-27.



Publications 2014

Contributions to Books / Journals

Journal Article (Original Paper)
  • Meister, Michael; Burger, Gregor; Rauch, Wolfgang (2014): On the Reynolds number sensitivity of smoothed particle hydrodynamics.
    In: Journal of Hydraulic Research 52/6, pp. 824 - 835. (URN) (DOI) (Web link)

Proceedings Article (Full Paper)
  • Meister, Michael; Fleischhacker, Nikolaus; Rauch, Wolfgang (2014): Anwendung von Smoothed Particle Hydrodynamics in der Siedlungswasserwirtschaft.
    In: Aqua Urbanica 2014. Misch- und Niederschlagswasserbehandlung im urbanen raum. Wien: Österreichischer Wasser- und Abfallwirtschaftsverband (ÖWAV), ISBN 978-3-902978-28-8, online. (DOI)

  • Meister, Michael; Rauch, Wolfgang (2014): Simulating Rising Bubble Problems with Smoothed Particle Hydrodynamics.
    In: Proceedings of the IMA Conference on Mathematical Modelling of Fluid Systems, 10-12 Sept 2014, Bristol. Essex: Institute of Mathematics and its Applications, pp. 1 - 9.

Proceedings Article (Abstract)
  • Meister, Michael; Rauch, Wolfgang (2014): Simulating Rising Bubble Problems with Smoothed Particle Hydrodynamics.
    In: Proceedings of the IMA Conference on Mathematical Modelling of Fluid Systems, 10-12 Sept 2014, Bristol. Essex: Institute of Mathematics and its Applications, elektronisch.



Lectures 2014

Presentations at Conferences, Symposia, etc.

Conference Lecture (Upon Registration)
  • Lecturer(s): Meister, Michael: Multiphase Simulations of Activated Sludge Basins with Smoothed Particle Hydrodynamics.
    Computational Fluid Dynamics for Dispersed Multiphase Flows IV, München, 2014-04-03. (Web link)

  • Lecturer(s): Meister, Michael Co-author(s): Fleischhacker, Nikolaus; Rauch, Wolfgang: Anwendung von Smoothed Particle Hydrodynamics in der Siedlungswasserwirtschaft.
    Aqua Urbanica 2014 "Misch- und Niederschlagswasserbehandlung im urbanen Raum", Innsbruck, 2014-10-24.

  • Lecturer(s): Meister, Michael; Burger, Gregor; Rauch, Wolfgang: Simulating Rising Bubble Problems with Smoothed Particle Hydrodynamics.
    IMA Conference on Mathematical Modelling of Fluid Systems, Bristol, 2014-09-10. (Web link)



Lectures 2013

Presentations at Conferences, Symposia, etc.

Lecture at Project Meeting / Research Cooperation Meeting
  • Lecturer(s): Meister, Michael; Burger, Gregor: Smoothed Particle Hydrodynamics in Urban Water Management.
    SPH Symposium Innsbruck, Innsbruck, 2013-12-18.



Publications 2011

Contributions to Books / Journals

Proceedings Article (Full Paper)
  • Burger, Gregor; Rauch, Wolfgang (2011): Investigating smoothed particle hydrodynamics in sewer hydraulics modelling.
    In: Proceedings of the 12th International Conference on Urban Drainage. September 11-15, 2011, Porto Alegre - Brazil. London: IWA Publishing, pp. 1 - 9. (Web link)



Lectures 2011

Presentations at Conferences, Symposia, etc.

Conference Lecture (Upon Registration)
  • Lecturer(s): Burger, Gregor Co-author(s): Rauch, Wolfgang: Investigating Smoothed Particle Hydrodynamics in Sewer Hydraulics Modelling.
    12th International Conference on Urban Drainage, Porto Alegre/RS, 2011-09-12. (Web link)