Kutscher, Konstantin Dr.-Ing. Archives - Additive Manufacturing in Construction (AMC) TRR277 https://amc-trr277.de/trr277-person/dr-ing-konstantin-kutscher/ AMC TRR 277 Fri, 14 Nov 2025 13:13:36 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.5 Project B 03 https://amc-trr277.de/projects/project-area-b/focus-area-b-03/ Fri, 19 Nov 2021 15:29:42 +0000 http://amc-trr277.de/?post_type=projects&p=3436 The post Project B 03 appeared first on Additive Manufacturing in Construction (AMC) TRR277.

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Modelling and Simulation of Shotcrete 3D Printing (SC3DP) Based on a Massively Parallel Multi-Phase, Multi-Component Coupled LBM-DEM Approach

In this project we develop a coupled simulation approach for the shotcrete process to predict the performance of a specific shotcrete nozzle geometry and the resulting jet dynamics as a function of the additive mixing within the nozzle and during the jet propagation. The model includes multiple components and phases as well as individual grains which are being advected with the mixture. A realistic stress-strain relationship is being developed to recover the correct non-Newtonian behaviour of the mixture including its thixotropic properties. The fully coupled simulation will serve to predict the behaviour of the shotcrete printer to be developed in A04.

Aim

  • Design of an Allen-Cahn phase-field two phase model (liquid/gas) based on a velocity pressure formulation with fourth order convergent cumulant method.
  • Incorporation of arbitrary constitutive relations for stress and strain in the liquid phase domain for modelling the complex rheology of the cement paste.
  • Incorporation of a DEM particle model for solid aggregates into the Allen-Cahn model; design of an immersed boundary model in the multi-phase multi-component framework.
  • Implementation of the above models in the massively parallel IRMB research code VirtualFluids and validation of the simulation framework against experimental data.

Methods

  • Implementation of a Bingham fluid model in a three-dimensional cumulant lattice Boltzmann framework.
  • Implementation of a multiphase model based on velocity formulation and pressure filter
  • Coupling of DEM-framework LIGGGHTS with VirtualFluids

Networking with other projects

  • Support B01 with expertise in LBM and VirtualFluids

Cooperation with A04 for following topics:

  • Virtual rheometer and material parameters.
  • Simulation and analysis of fluid mixing before nozzle exit.
  • Simulation of shotcrete dynamics for Demonstrator A04

Project leaders

Prof. Dr. rer. nat. Martin Geier

See profile

Project leader

Geier, Martin Junior Prof. Dr. rer. nat.

He substantially contributes to model development and implementation related aspects of WPs 1-2 and will contribute to the analysis of simulation results with special focus on WP 5.

Project(s)

Project B 03

Modelling and Simulation of Shotcrete 3D Printing (SC3DP) Based on a Massively Parallel Multi-Phase, Multi-Component Coupled LBM-DEM Approach

Prof. Dr.-Ing. Manfred Krafczyk

See profile

Project leader

Krafczyk, Manfred Prof. Dr.-Ing.

is responsible for WPs 3-5 and contributes to HPC and setup related aspects of the corresponding simulations. He advises Dr. Kutscher in conducting the simulations and the analysis of the results. He also takes responsibility for the data exchange with other projects within the TRR.

Project(s)

Project B 03

Modelling and Simulation of Shotcrete 3D Printing (SC3DP) Based on a Massively Parallel Multi-Phase, Multi-Component Coupled LBM-DEM Approach

Contributors

Dr.-Ing. Konstantin Kutscher

See profile

Kutscher, Konstantin Dr.-Ing.

is the lead developer of the VirtualFluids software. In this function he is indispensable for the project as a new doc. res. could not possibly extend the existing framework (>700,000 lines of code) with the new models to be developed and adapted in WP 1-4. He is also experienced in conducting massively parallel runs on THIER-0 systems and analyzing huge data sets with more than 10 degrees of free…

Project(s)

Project B 03

Modelling and Simulation of Shotcrete 3D Printing (SC3DP) Based on a Massively Parallel Multi-Phase, Multi-Component Coupled LBM-DEM Approach

Related Publications

VirtualFluids – open source parallel LBM solver

2025 | M. Geier, K. Kutscher, M. Schönherr, A. Wellmann, S. Peters, H. Alihussein, J. Linxweiler, M. Krafczyk: VirtualFluids – open source parallel LBM solver Computer Physics Communications, 2025, Article 109810, ISSN 0010-4655, , https://doi.org/10.1016/j.cpc.2025.109810.

Data |Zenodo, 2024, https://doi.org/10.5281/zenodo.10535097.

Lattice Boltzmann for linear elastodynamics: Periodic problems and Dirichlet boundary conditions

2025 | O. Boolakee, M. Geier, L. De Lorenzis: Lattice Boltzmann for linear elastodynamics: Periodic problems and Dirichlet boundary conditions Computer Methods in Applied Mechanics and Engineering, 433, 117469, 2025, https://doi.org/10.1016/j.cma.2024.117469.

Direct cumulant lattice Boltzmann simulations of transitional flow in gyroidal structures including experimental validation

2024 | H. Alihussein, A. Prasannakumar, M. Geier, M. Krafczyk: Direct cumulant lattice Boltzmann simulations of transitional flow in gyroidal structures including experimental validation Computers & Mathematics with Applications, 157, 2024, pp. 159–172, https://doi.org/10.24433/CO.7072765.v1.

Data | Transitional Flow Characteristics in Gyroidal Structures: Simulations Source Code, Codeocean, 2024, https://doi.org/10.24433/CO.7072765.v1.

A new lattice Boltzmann scheme for linear elastic solids: periodic problems

2023 | O. Boolakee, M. Geier, L. De Lorenzis: A new lattice Boltzmann scheme for linear elastic solids: periodic problems. In: Computer methods in applied mechanics and engineering, 415 (2023) 116225

A new lattice Boltzmann scheme for linear elastic solids: periodic problems

2023 | O. Boolakee, M. Geier, L. De Lorenzis: A new lattice Boltzmann scheme for linear elastic solids: periodic problems. In: Comput. Methods Appl. Mech. Engrg. 404 (2023) 115756

Under-resolved and large eddy simulations of a decaying Taylor-Green vortex with the cumulant lattice Boltzmann method

2021 | Geier, M.; Lenz, S.; Schönherr, M.; Krafczyk, M.: Under-resolved and large eddy simulations of a decaying Taylor-Green vortex with the cumulant lattice Boltzmann method. In: Theoretical and Computational Fluid. Dynamics 35, 169-208, 2021.

Computation of Implicit Representation of Volumetric Shells with Predefined Thickness

2021 | Geier, M.; Alihussein, H.: Computation of Implicit Representation of Volumetric Shells with Predefined Thickness. In: Algorithms 14.4, 125, 2021.

A Direct Effective Viscosity Approach for Modeling and Simulating Bingham Fluids with the Cumulant Lattice Boltzmann Method

2021 | Geier, M.; Kutscher, K.; Krafczyk, M.: A Direct Effective Viscosity Approach for Modeling and Simulating Bingham Fluids with the Cumulant Lattice Boltzmann Method. In: Open Journal of Fluid Dynamics 11.01, 34, 2021. – DOI: https://www.scirp.org/html/3-2320649_107771.htm.

The lattice Boltzmann method for nearly incompressible flows

2021 | Lallemand, P.; Luo, L.; Krafczyk, M.; Yong, W.: The lattice Boltzmann method for nearly incompressible flows. In: Journal of Computational Physics 431. – DOI: doi.org/10.1016/j.jpc.2020.109713.

More projects of
Focus Area B

Project B 04

Process Control and Adaptive Path Planning for Additive Manufacturing Processes Based on Industrial Robots with an Extended Degree of Freedom

Project B 05

Principles of Mobile Robotics for Additive Manufacturing in Construction

Project B 06

Material Modelling and Simulation of Deposition AM Processes on the Part Scale

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]]> VirtualFluids – open source parallel LBM solver https://amc-trr277.de/amc-publikation/virtualfluids-open-source-parallel-lbm-solver/ Mon, 29 Sep 2025 08:47:04 +0000 https://amc-trr277.de/?post_type=amc-publikation&p=8132 2025 | M. Geier, K. Kutscher, M. Schönherr, A. Wellmann, S. Peters, H. Alihussein, J. Linxweiler, M. Krafczyk: VirtualFluids – open source parallel LBM solver Computer Physics Communications, 2025, Article 109810, ISSN 0010-4655, , https://doi.org/10.1016/j.cpc.2025.109810. Data |Zenodo, 2024, https://doi.org/10.5281/zenodo.10535097.

The post VirtualFluids – open source parallel LBM solver appeared first on Additive Manufacturing in Construction (AMC) TRR277.

]]> 2025 | M. Geier, K. Kutscher, M. Schönherr, A. Wellmann, S. Peters, H. Alihussein, J. Linxweiler, M. Krafczyk: VirtualFluids – open source parallel LBM solver Computer Physics Communications, 2025, Article 109810, ISSN 0010-4655, , https://doi.org/10.1016/j.cpc.2025.109810.

Data |Zenodo, 2024, https://doi.org/10.5281/zenodo.10535097.

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]]> Dr.-Ing. Konstantin Kutscher https://amc-trr277.de/trr277-people/dr-ing-konstantin-kutscher/ Thu, 25 Nov 2021 16:53:27 +0000 http://amc-trr277.de/?post_type=trr277-people&p=3671 is the lead developer of the VirtualFluids software. In this function he is indispensable for the project as a new doc. res. could not possibly extend the existing framework (>700,000 lines of code) with the new models to be developed and adapted in WP 1-4. He is also experienced in conducting massively parallel runs on THIER-0 systems and analyzing huge data sets with more than 10 degrees of freedom.

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Dr.-Ing. Konstantin Kutscher

Current location: TU Braunschweig
Institute: Institute for Computational Modeling in Civil Engineering
OrcidiD: 0000-0002-1099-1608

kutscher@irmb.tu-bs.de

is the lead developer of the VirtualFluids software. In this function he is indispensable for the project as a new doc. res. could not possibly extend the existing framework (>700,000 lines of code) with the new models to be developed and adapted in WP 1-4. He is also experienced in conducting massively parallel runs on THIER-0 systems and analyzing huge data sets with more than 10 degrees of freedom.

Project(s)

Project B 03

Modelling and Simulation of Shotcrete 3D Printing (SC3DP) Based on a Massively Parallel Multi-Phase, Multi-Component Coupled LBM-DEM Approach

Publications

2025 | M. Geier, K. Kutscher, M. Schönherr, A. Wellmann, S. Peters, H. Alihussein, J. Linxweiler, M. Krafczyk: VirtualFluids – open source parallel LBM solver Computer Physics Communications, 2025, Article 109810, ISSN 0010-4655, , https://doi.org/10.1016/j.cpc.2025.109810.

Data |Zenodo, 2024, https://doi.org/10.5281/zenodo.10535097.

2021 | Geier, M.; Kutscher, K.; Krafczyk, M.: A Direct Effective Viscosity Approach for Modeling and Simulating Bingham Fluids with the Cumulant Lattice Boltzmann Method. In: Open Journal of Fluid Dynamics 11.01, 34, 2021. – DOI: https://www.scirp.org/html/3-2320649_107771.htm.

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]]> A Direct Effective Viscosity Approach for Modeling and Simulating Bingham Fluids with the Cumulant Lattice Boltzmann Method https://amc-trr277.de/amc-publikation/a-direct-effective-viscosity-approach-for-modeling-and-simulating-bingham-fluids-with-the-cumulant-lattice-boltzmann-method/ Thu, 20 Jan 2022 15:37:05 +0000 http://amc-trr277.de/?post_type=amc-publikation&p=4587 2021 | Geier, M.; Kutscher, K.; Krafczyk, M.: A Direct Effective Viscosity Approach for Modeling and Simulating Bingham Fluids with the Cumulant Lattice Boltzmann Method. In: Open Journal of Fluid Dynamics 11.01, 34, 2021. – DOI: https://www.scirp.org/html/3-2320649_107771.htm.

The post A Direct Effective Viscosity Approach for Modeling and Simulating Bingham Fluids with the Cumulant Lattice Boltzmann Method appeared first on Additive Manufacturing in Construction (AMC) TRR277.

]]> 2021 | Geier, M.; Kutscher, K.; Krafczyk, M.: A Direct Effective Viscosity Approach for Modeling and Simulating Bingham Fluids with the Cumulant Lattice Boltzmann Method. In: Open Journal of Fluid Dynamics 11.01, 34, 2021. – DOI: https://www.scirp.org/html/3-2320649_107771.htm.

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