CENUMERICS — Dr. Christian Feist

CENUMERICS was founded in 2006 as an engineering consultancy offering high-end services in mathematical modeling and numerical simulation. The founder of this owner-operated consultancy, Dr. Christian Feist, has always had an affinity for simulation and graduated from the University of Innsbruck, Austria, as a structural engineer. There, he also received his PhD for his thesis on the constitutive modeling of brittle materials. Dr. Christian Feist is a state-authorized and certified engineering consultant and court-accredited expert for strength analysis and finite elements.

At CENUMERICS, we specialize in performing high-level simulations and analyses of components and processes, as well as developing engineering software tools for customers in the steelmaking, metalworking, and transportation system industries. The COMSOL Multiphysics^® software has become one of our most important tools over the years. The COMSOL^® product suite not only serves as a tool for our complex modeling tasks but also as an important development platform. The COMSOL development tools enable us to deploy our models as end-user-ready apps for our customers.

Areas of Expertise

At CENUMERICS, we have experience in the following fields:

• Solid mechanics
  • General geometrically and materially nonlinear stress and displacement analyses
  • Longterm and high-temperature creep analyses, particularly of reactor and electric furnace components (electromagnetism)
  • Cyclic behavior analyses of components (shakedown, ratcheting)
  • FKM guidelines (Guidelines of the Research Board of Mechanical Engineering e.V.):
    • Assessment of static and fatigue strength of components according to the FKM guideline Analytical Strength Assessment of Components in Mechanical Engineering
    • Fracture mechanics assessment according to the FKM guideline Fracture Mechanics Proof of Strength for Engineering Components
• Heat transfer
  • General nonlinear heat transfer analyses in solids and fluids (conduction, convection, and radiation)
  • Conjugate heat transfer analysis (fluid mechanics)
  • Modeling of phase transitions such as in solidification processes
• Fluid mechanics
  • Laminar and turbulent fluid and gas flow
  • Multicomponent gas diffusion in reactors
  • Multiphase flow
• Electromagnetism
  • Inductive and alternating/direct current resistive heating: process modeling and support in the design of continuous and discontinuous heating systems
  • Assessment of geometrically nonlinear magnetic force contributions in high-temperature creep analyses (solid mechanics)
  • Permanent magnet systems
• Plasma-based manufacturing, physical vapor deposition (PVD)
  • Particle-based (discrete), continuum-based, and hybrid modeling
  • Target erosion modeling for:
    • Direct current magnetron sputtering (DCMS) systems
    • Arc-PVD systems
• Mathematics
  • Custom ODE and PDE implementation
  • Design parameter sensitivity analysis
• Development and implementation
  • Application development and model automatization using the Application Builder in COMSOL Multiphysics^®
  • Physics interface development using the Physics Builder in COMSOL Multiphysics^®
  • External material development for constitutive models in solid mechanics using C/C++
  • External function development for custom requirements using C/C++
• Other
  • Development of real-time process models for process automatization and control
  • Nonlinear temperature-dependent constitutive modeling
  • Setup of highly parameterized and optimized geometry and solver sequences

Consultant Contributions

At the COMSOL Conference 2013 Rotterdam, we presented the following paper together with one of our longterm customers:

C. Feist, A. Plankensteiner, J. Winkler, "Studying Target Erosion in Planar Sputtering Magnetrons Using a Discrete Model for Energetic Electrons", Proc. COMSOL Conference Rotterdam 2013, 2013.

To learn more about how we can support you with our services and expertise, do not hesitate to contact us. We look forward to hearing from you.