Event Information:

• Thu

  18

  Nov

  2021

  SC Seminar: Jan Rottmayer

  12:00Onlne

  Jan Rottmayer, TU Kaiserslautern

  Title:
  Flow Control via Reduced Order Models

  Abstract:

  The optimization of systems governed by nonlinear partial differential equations requires solving large-scale systems of equations at each iteration throughout the design process. The reduction of model dimension and complexity is essential for the application to optimal control and design problems. This talk aims to introduce methods to construct a suitable reduced order model for an unsteady flow problem, and to apply it for optimal control. We use a POD-Galerkin model in the isentropic regime to determine the optimal control actuation for the fluid flow around a circular cylinder to mitigate vortex shedding. Our results show the successful reduction of unsteadiness in the downstream of the cylinder, and validation with a high-fidelity simulation confirms the results.

  How to join

  The talk is held online via Jitsi. You can join with the link https://jitsi.rptu.de//SciCompSeminar_03. Please follow the rules below:

  • Use a chrome based browser (One member with a different browser can crash the whole meeting).
  • Mute your microphone and disable your camera.
  • If you have a question, raise your hand.

  More information is available at https://rz.rptu.de/dienstleistungen/netz-telefonie/konferenzdienste/jitsi/.