News

Swiss participation in an Austrian guideline on numerical modelling – looking back on a successful collaboration

Stephan Suter, 16. April 2025

TK CONSULT AG from Zurich contributed to the development of the new ÖWAV Guideline 222 on numerical modelling of porous aquifers. Published in February 2025, the guideline offers practical guidance for professionals, tenderees, and regulatory authorities. At the guideline launch seminar in Vienna, TK CONSULT AG presented the Aussermontafon groundwater model and its application for the State of Vorarlberg.

Impact of river construction projects on the groundwater balance: A case study of a river widening project in the Alpine Rhine valley

Michael Ballmer, 25. February 2025

When planning river construction projects, it is essential to consider their impact on the groundwater balance. Numerical groundwater modelling can significantly improve our understanding of the river-aquifer system, as demonstrated by the modelling conducted for the preliminary study of the Rhine widening in Schaan, Buchs and Eschen (Switzerland/Liechtenstein).

TK welcomes the new CEO

TK CONSULT AG, 16. December 2024

Stephan Suter will succeed Rouven Künze as CEO of TK CONSULT AG on February 1st 2025.

Merry Christmas

TK CONSULT AG, 12. December 2024

Wishing you a Merry Christmas, filled with warmth and happiness, and a healthy and successful New Year!

Revitalisation of the Wiese river in the city of Basel (WieseVital)

Michel Kuhlmann, Dila Demiral Yüzügüllü, 17. September 2024

The revitalisation of the upper reaches of the Wiese river in the canton of Basel-Stadt is currently planned. TK CONSULT AG was commissioned by the canton to validate the river hydraulics for the project by the application of numerical modelling.

Hydrogeological multiphase-multicomponent simulations of a PCE polluted site

Rouven Künze, 11 July 2024

TK CONSULT AG carried out complex flow and transport simulations using iTOUGH2. The simulations were done for a site in Bassecourt that was marked as polluted by the Canton of Jura.

ARA Basel: Hydraulic verification and optimization of a distribution structure using CFD simulations

Andrej Sternin, Michel Kuhlmann, 17. May 2024

For the expansion of ARA Basel, TK CONSULT AG, together with HOLINGER AG, carried out the hydraulic verification of a distribution structure, developed optimization possibilities, and dimensioned the installations in the distribution structure using numerical modeling.

New bridge construction in Basel for the Deutsche Bahn railway network

Michel Kuhlmann, Dila Demiral Yüzügüllü, Mario Dolder, 15 March 2024

Assessment of the flood risk and dimensioning of the required bed stabilisation measures.

Low groundwater level in the Außermontafon aquifer (Austria)

Michael Ballmer, 18. January 2024

Analysis of the low groundwater level in the period of 2021 - 2023 using numerical modeling and extended data evaluation

Merry Christmas

TK CONSULT AG, 13. December 2023

With best wishes for a joyful Christmas season and a beautiful and successful New Year!

Presentation at the VPE-workshop in Rapperswil

Andrej Sternin, 23 November 2023

TK CONSULT AG was invited by the VPE/PLM (virtual product development/ product lifecycle management) association to give a presentation on the topic of verification and validation of simulations.

Hydraulic optimization of the inlet system of the wastewater treatment plant Chur

Andrej Sternin, 20. September 2023

Verification of the safety mechanisms of a sewer system in the event of heavy precipitation by means of CFD simulation

Thermal groundwater utilization of the unconsolidated aquifer in the Rhine Valley of St.Gallen

Michael Ballmer, 30 June 2023

Hydrothermal 3D groundwater modelling of the current state and the thermal potential

Dübendorf airfield area development

Michel Kuhlmann, 12 May 2023

Numerical 2D-runoff-modelling regarding flood and surface runoff hazards

Flood diversion tunnel on the Altbach in Kloten

Michel Kuhlmann, 22 March 2022

Hydraulic verification of structure dimensioning using 3D CFD multiphase modelling.

Groundwater use IWB Lange Erlen, verification of protection zones

Ramona Nüssli, 06. February 2023

Assessment of the flow regime to groundwater wells based on flow line calculations for different transient scenarios

Merry Christmas

TK CONSULT AG, 19. December 2022

We wish you a Merry Christmas with your loved ones and a Happy New Year.

SPRING user conference 2022

Rouven Künze, 13. October 2022

Once more TK CONSULT AG participated with a presentation on the coupling of the software SPRING with a realtime model at the SPRING user conference in the house Witten in the German town of Witten.

Validation of thermal groundwater use

Ramona Nüssli, 19. August 2022

Applications of thermal groundwater models for the evaluation of the impact of heat pumps.

Validation of 3D CFD simulations using discharge and velocity measurements

Pirmin Ebner, 16. June 2022

In a joint project with HOLINGER AG and Photrack AG, TK CONSULT AG validated results of 3D-CFD simulations performed for the optimization of a distribution structure.

Presentation at the "7. Expertenforum Regenüberlaufbecken" of the DWA-Landesverband Baden-Württemberg

Pirmin Ebner, 06. April 2022

TK CONSULT AG, HOLINGER AG as well as HOLINGER Ingenieure GmbH (members of the HOLINGER group) was invited to present at the "7. Expertenforum Regenüberlaufbecken" of the DWA-Landesverband Baden-Württemberg in Stuttgart on the subject of "Optimisation of a rainwater basin using 3D-CFD simulation - practical example of planning and implementation steps".

Flood safety in the Sarneraatal - Optimization of the outlet structure of a relief tunnel using 3D CFD modelling

Mattias Deller, 16. February 2022

Hydraulic investigation of the outlet structure of the flood tunnel from Lake Sarnen to the Sarneraa

Merry Christmas

TK CONSULT AG, 16. December 2021

We would like to thank you warmly for your trust and the good cooperation in the past year. We wish you and your family a wonderful holiday season and a good start into the new year.
Yours TK CONSULT AG

Groundwater investigation and modeling Außermontafon

Michael Ballmer, 16. December 2021

Development and application of the 3D groundwater model for Außermontafon

Optimization of a rainwater basin using 3D-CFD simulation

Mattias Deller, November 3, 2021

Increase of the intake- and cleaning capacity of a rain basin and checking the functionality during rainy weather condition

Talk at the Hydraulic Engineering Symposium 2021, ETH Zürich

Michel Kuhlmann, October 4, 2021

TK CONSULT AG was invited to hold a talk at this year's Hydraulic Engineering Symposium at ETH Zürich on the subject of «2D flood-modelling of the river Sihl in the City of Zürich».

Poster presentation at Aqua Urbanica 2021

Mattias Deller, September 17, 2021

TK CONSULT AG was able to present a poster at this year's Aqua Urbanica in Innsbruck on the subject of «3D CFD urban water management: potential, benefits and challenges».

Journal Publication in Wasser Energie Luft

Mattias Deller, September 9, 2021

Optimization of the fish ladder at the Bannwil hydropower plant using 3D-CFD-simulation

3D-CFD simulation of a vortex dropshaft with an upstream stabilization basin

Mattias Deller, June 15, 2021

Hydraulic capacity validation of a vortex dropshaft with a fall height of 68 m using 3D-CFD simulations

Revitalization of the inland canal and groundwater protection in Sevelen

Michael Ballmer, 11. Mai 2021

The existing groundwater model of the Alpine Rhine Valley has been successfully used for the legal specification of the protection zone for the revitalization project of the Werdenberger inland canal.

Presentation on "3D-CFD Simulation of urban drainage systems" at the VSA-Symposium on the 20th April 2021

Matthias Deller, April, 9th 2021

TK CONSULT AG will give a presentation on 20th of April 2021 at the online VSA-Symposium on "DIGITIZATION IN CONSTRUCTION, OPERATION AND MAINTANENANCE OF DRAINAGE SYSTEMS" The instrument of 3D CFD simulations in urban drainage systems is presented.

Presentation at the BASEMENT User-Meeting

Steffen Corbe, March 15, 2021

2D Simulations of the Flood Retention Basin «Drei Brücken»

3D-CFD simulation of a rainwater basin with an upstream drop shaft

Mattias Deller, 22. February 2021

Hydraulic testing of the renovation work on a rainwater basin and the construction of a new drop shaft using a 3D-CFD simulation.

Influence of the Rhine widening in Maienfeld / Bad Ragaz on local groundwater levels

Ramona Nüssli, 14. January 2021

Impact assessment of the planned Alpine Rhine widening in Maienfeld / Bad Ragaz on the local groundwater conditions by a 3D flow simulation.

Merry Christmas

TK CONSULT AG, 17. December 2020

We would like to thank you warmly for your trust and the good cooperation in this unusual year. We wish you and your family a wonderful holiday season and a good start into the new year.
Yours TK CONSULT AG

Journal Publication in Wasser Energie Luft

Lukas Vonwiller, December 3, 2020

2-D Flood Modelling in the City of Zurich Taking into Account Briges and Culverts

Review of measures to increase the capacity of a stream culvert using 3D-CFD simulation

Mattias Deller, 12. November 2020

As part of the renovation of a culvert on the Rötelbach in the canton of Thurgau, measures to increase capacity were checked using a 2-phase (water/air) 3D-CFD simulation

Capacity increases of Limmat bridges in the city of Zurich

Steffen Corbe, 15 July 2020

Evaluation of measures to increase the discharge capacity of the Limmat by 2D simulation.

Simulations of the use of geothermal energy for Grob Gemüsebau in CH-Schlattingen

Dr. Rouven Künze, 18. September 2020

Numerical validation of the impact of the drillings SLA2 and SLA1 on the pressure heads in the shell-limestone for a long-term geothermal energy production.

3D-CFD modelling in urban drainage systems

Mattias Deller, 17 August 2020

Hydraulic evaluation and optimization of a union drop shaft

From punch cards to a High-Performance-Cluster

Dr. Jürg Trösch, Dr. Uli Kuhlmann, 27. July 2020

25 year of TK CONSULT AG
Retroperspective from the two founders

Water level and discharge modelling at the Lake Pfäffikon

Michel Kuhlmann, Dr. Uli Kuhlmann, 15 July 2020

Evaluation of different weir configurations using inverse hydraulic 1D modelling.

Extension of the St. Jakobsmatten groundwater wells for the water supply of Münchenstein

Michael Ballmer, 17. June 2020

Catchment area modelling using a numerical groundwater model

3D-CFD simulation of an ozonation reactor

Mattias Deller, 20. Mai 2020

Optimization of the residence time of an ozonation reactor taking into account fumigation and tracer concentration

2D Bedload Modelling at the Run-of-river Power Plant Klingnau

Dr. Lukas Vonwiller, April 16, 2020

Analysis of reservoir operation scenarios on morpho-dynamics and restoration of bedload continuity at the reservoir in Klingnau

Impact of flood control actions taken for the river Ill in the Walgau basin (A)

Michael Ballmer, 16. März 2020

Validation of the flood control actions taken for the aquifer in Walgau

Stratification modelling of lake water used by Lindt & Sprüngli AG

Ramona Nüssli, February 12, 2020

3D-CFD application to validate the temperature stratification of lake water used for industrial purposes

Morphodynamic 2D Modelling at the Confluence of the Wiese River

Dr. Lukas Vonwiller, January 17, 2020

TK CONSULT AG improved the understanding of morphodynamic processes during flood events at the Wiese River using morphodynamic 2D simulations.

Merry Christmas

TK CONSULT AG, 19. December 2019

We would like to thank all our customers, partners and friends for the good and trustful cooperation. We wish you and your family reflective holidays and a happy new year.
Yours TK CONSULT AG

Symposium at Zurich main station

Ramona Nüssli, 15. November 2019

TK CONSULT AG invited interested customers, partners and colleagues to a symposium about "2D hydraulic simulation of the alluvial fan of the river Sihl" at the main station of Zurich.

Groundwater Modelling Course in Guiyang, China

Dr. Rouven Künze, 15. September 2019

Within the framework of the EPC OpenLab agreement signed last year, TK CONSULT AG conducted a one week training course on Groundwater Modelling in Guiyang, China.

3D groundwater modelling for the concession of a drinking water well

Ramona Nüssli, 13. August 2019

Validation of the pumping rate and depth of withdrawal of a planned drinking water well in Rodund, AT, using 3D groundwater modelling.

3D-CFD simulation to optimize the mixing of a digester tank

Deller Mattias, June 14, 2019

Investigation of the mixing performance in a digestion tank for different gas injection configurations.

The TK CONSULT AG quality management system is now certified according to ISO 9001:2015

Steffen Corbe, 23. May 2019

We are happy to announce that our internal quality management system was official approved with respect to the ISO 9001:2015 norm. Further information on the TK CONSULT quality management system is available here.

3D-CFD simulation of a Sequencing Batch Reactor (SBR)

Mattias Deller, 15. April 2019

Sludge mixing optimization in a SBR using different stirrer configurations.

Supervision of master thesis of Hanna Beeler (ETH)

Dr. Rouven Künze, 19. March 2019

In cooperation with the WVZ and ETH Zurich, TK CONSULT AG supervised a master thesis that included the regeneration of the groundwater model Hardhof.

Simulation of a vortex dropshaft

Steffen Corbe, 18. February 2019

3D-CFD-simulations for the verification and optimization of a vortex dropshaft with two-way inflow.

Update of the 3D groundwater model of the Basel area

Michael Ballmer, 17. January 2019

In the context of the latest maintenance project, the existing 3D groundwater model of the Basel area has been hydrothermally extended.

Merry Christmas

TK CONSULT AG, 19 December 2018

We wish all our customers, partners, colleagues and friends a wonderful Christmas and a happy new year! We thank you for the excellent and faithful cooperation and we are looking forward to new exciting joint projects in 2019.
Yours TK CONSULT AG

Symposium at the Water Supply Zürich (WVZ)

Dr. Rouven Künze, 25. Novembre 2018

TK CONSULT AG has invited interested clients, partners and colleagues to a symposium at the water supply Zurich with the topic «water, source of life»

Flood protection in Glarus

Michel Kuhlmann, 09. Nov. 2018

Analysis of extreme flood discharges at the Escherkanal - 1D & 2D runoff modelling

Gruezi, Hello & Salut

Steffen Corbe, 20. September 2018

TK CONSULT webpage and newsblock now available in French

Retention time in a fresh water tank in Saudi Arabia

Mattias Deller, 12. September 2018

The retention time in a fresh water tank has been modeled, using a thermo - hydraulic approach. It could be shown that the steel walls heated by the sun influence the circulation inside the water tank and that compared to a purely hydraulic simulation different retention times are to be expected.

Participation ECO Forum Global Guiynag 2018 & Foundation of EPC OpenLab

Dr. Rouven Künze, 23. August 2018

As part of the ECO Forum Global 2018 in Guiyang, TKC has laid the foundation for future collaborations in Guizhou Province .

Thermal groundwater simulation of cooling water extraction for the company Blum

Ramona Nüssli, 16. July 2018

Application of a 3d-flow and thermal model for the evaluation of the impact of groundwater usage for cooling purposes.

Groundwater simulations for the Inn-revitalisation project

Michael Ballmer, 4. June 2018

Calculation of effects and measures of the Inn-revitalisation on the community Bever in the Upper Engadine

Hydrogeological expertise for the general construction project Basel Rhine Tunnel on behalf of ASTRA

Dr. Rouven Künze, 9. May 2018

Calculation of the effects of the planned Rhine tunnel in Basel on the current groundwater flow and evaluation of possible compensatory measures

Change of telephone number

22. März 2018

The new number is +41 44 288 81 81.

Thermal use of surface water

Steffen Corbe, 13. März 2018

Thermal modelling can show how warmed or cooled water spreads and mixes in rivers and lakes.

20 years groundwater model Alpenrhein

Michael Ballmer, 9. Februar 2018

On behalf of the International Government Commission Alpenrhein (IRKA), TK CONSULT AG is maintaining and supervising the Alpenrhein groundwater model for 20 years now.

Change of address

01. Februar 2018

You can find TK CONSULT AG since February 1st 2018 at Neugasse 136 in 8005 Zurich. Hope to see you there.

Talk: Web applications with Basement

Michel Kuhlmann, 26. Januar 2018

Talk at Basement User Meeting in Rapperswil (german slides).

Merry Christmas

TK CONSULT, 21. December 2017

We wish all our customers, partners, colleagues and friends wonderful, relaxing Christmas and a happy new year 2018 !!! We thank you for the trusting cooperation. Your TK CONSULT AG

TK CONSULT colloquium

Steffen Corbe, 28. November 2017

TK CONSULT colloquium in the Urania observatory in Zuerich

Waterbalance of Switzerland 2.0

Mattias Deller, 13. November 2017

Article to the waterbalance of Switzerland in the September '17 edition of the magazine "Wasser Energie Luft"

Sino-Swiss Cities Cooperation Forum Water Eco-civilization, Jinan, China

Steffen Corbe, 19. Oktober 2017

Talk about groundwater protection and management in Switzerland as well as applications and technical possibilities

10 years real-time groundwater model Hardhof in Zurich

Uli Kuhlmann, 04. September 2017

TK CONSULT AG has devolped an online real-time groundwater model for the public water-supply in Zurich. The model is a decision-making tool for the daily pumping and infiltration rates. It is in active developement and in operation since 10 years.

Modelling pluvial events in inner urban regions

Steffen Corbe, Michel Kuhlmann, 02. August 2017

TK CONSULT AG has developed methods to simulate extreme pluvial events in inner urban regions. The resluting analysis can be used to design correction measures.

Youtube Channel

Steffen Corbe, 17. Juli 2017

We are happy to annouce our new Youtube Channel.

Groundwater management in Jinan, China

Steffen Corbe, 10. May 2017

Helping the local authorities in Jinan, China in the area of sustainable groundwater management.

Research cooperation 3D-CFD-Simulations

Steffen Corbe, 23. February 2017

Cooperation with the VAW, ETH Zurich, on "Aeration and two phase flow characteristics of bottom outlets"

Talk: 3D-CFD Simulations - Practical examples

Steffen Corbe, 07. Februar 2017

HOLINGER SA in Luxembourg invited their customers to a customer event staged at BIODIVERSUM in the "Haff Réimech" nature reserve. Steffen Corbe spoke on 3D CFD simulation in water management (Updated slides in German)

Talk: Modelling sand deposits downstream the hydro power station in Birsfelden

Michel Kuhlmann, 25. Januar 2017

Problem analysis with 2d-modelling. Talk by Steffen Corbe held at the Basement User Meeting in Rapperswil