## Thomas Rösgen: Catalogue data in Spring Semester 2021 |

Name | Prof. em. Dr. Thomas Rösgen |

Field | Strömungslehre |

Address | Institut für Fluiddynamik ETH Zürich, ML H 33 Sonneggstrasse 3 8092 Zürich SWITZERLAND |

Telephone | +41 44 632 26 46 |

roesgen@ifd.mavt.ethz.ch | |

Department | Mechanical and Process Engineering |

Relationship | Professor emeritus |

Number | Title | ECTS | Hours | Lecturers | |
---|---|---|---|---|---|

151-0102-00L | Fluid Dynamics I | 6 credits | 4V + 2U | T. Rösgen | |

Abstract | An introduction to the physical and mathematical foundations of fluid dynamics is given. Topics include dimensional analysis, integral and differential conservation laws, inviscid and viscous flows, Navier-Stokes equations, boundary layers, turbulent pipe flow. Elementary solutions and examples are presented. | ||||

Objective | An introduction to the physical and mathematical principles of fluid dynamics. Fundamental terminology/principles and their application to simple problems. | ||||

Content | Phenomena, applications, foundations dimensional analysis and similitude; kinematic description; conservation laws (mass, momentum, energy), integral and differential formulation; inviscid flows: Euler equations, stream filament theory, Bernoulli equation; viscous flows: Navier-Stokes equations; boundary layers; turbulence | ||||

Lecture notes | Lecture notes (extended formulary) for the course are made available electronically. | ||||

Literature | Recommended book: Fluid Mechanics, Kundu & Cohen & Dowling, 6th ed., Academic Press / Elsevier (2015). | ||||

Prerequisites / Notice | Voraussetzungen: Physik, Analysis | ||||

151-0110-00L | Compressible Flows | 4 credits | 2V + 1U | T. Rösgen | |

Abstract | Topics: unsteady one-dimensional subsonic and supersonic flows, acoustics, sound propagation, supersonic flows with shocks and Prandtl-Meyer expansions, flow around slender bodies, shock tubes, reaction fronts (deflagration and detonation). Mathematical tools: method of characteristics and selected numerical methods. | ||||

Objective | Illustration of compressible flow phenomena and introduction to the corresponding mathematical description methods. | ||||

Content | The interaction of compressibility and inertia is responsible for wave generation in a fluid. The compressibility plays an important role for example in unsteady phenomena, such as oscillations in gas pipelines or exhaust pipes. Compressibility effects are also important in steady subsonic flows with high Mach numbers (M>0.3) and in supersonic flows (e.g. aeronautics, turbomachinery). The first part of the lecture deals with wave propagation phenomena in one-dimensional subsonic and supersonic flows. The discussion includes waves with small amplitudes in an acoustic approximation and waves with large amplitudes with possible shock formation. The second part deals with plane, steady supersonic flows. Slender bodies in a parallel flow are considered as small perturbations of the flow and can be treated by means of acoustic methods. The description of the two-dimensional supersonic flow around bodies with arbitrary shapes includes oblique shocks and Prandtl-Meyer expansions etc.. Various boundary conditions, which are imposed for example by walls or free-jet boundaries, and interactions, reflections etc. are taken into account. | ||||

Lecture notes | not available | ||||

Literature | a list of recommended textbooks is handed out at the beginning of the lecture. | ||||

Prerequisites / Notice | prerequisites: Fluiddynamics I and II | ||||

151-0111-00L | Research Seminar in Fluid DynamicsInternal research seminar for graduate students and scientific staffs of the IFD | 0 credits | 2S | F. Coletti, P. Jenny, T. Rösgen, O. Supponen | |

Abstract | Current research projects at the Institute of Fluid Dynamics are presented and discussed. | ||||

Objective | Exchange on current internal research projects. Training of presentation skills. | ||||

Content | Current research projects in Fluid Dynamics | ||||

151-1053-00L | Thermo- and Fluid Dynamics | 0 credits | 2K | P. Jenny, R. S. Abhari, G. Haller, C. Müller, N. Noiray, D. Poulikakos, T. Rösgen, A. Steinfeld | |

Abstract | Current advanced research activities in the areas of thermo- and fluid dynamics are presented and discussed, mostly by external speakers. The talks are public and open also for interested students. | ||||

Objective | Knowledge of advanced research in the areas of thermo- and fluid dynamics | ||||

Content | Current advanced research activities in the areas of thermo- and fluid dynamics are presented and discussed, mostly by external speakers. | ||||

401-5950-00L | Seminar in Fluid Dynamics for CSE | 4 credits | 2S | P. Jenny, T. Rösgen | |

Abstract | Enlarged knowledge and practical abilities in fundamentals and applications of Computational Fluid Dynamics | ||||

Objective | Enlarged knowledge and practical abilities in fundamentals and applications of Computational Fluid Dynamics | ||||

Prerequisites / Notice | Contact Prof. P. Jenny or PD Dr. D. Meyer-Massetti before the beginning of the semester |