## Patrick Jenny: Catalogue data in Spring Semester 2023 |

Name | Prof. Dr. Patrick Jenny |

Field | Numerische Strömungsberechnung und Mehrskalenmodellierung |

Address | Institut für Fluiddynamik ETH Zürich, ML H 32 Sonneggstrasse 3 8092 Zürich SWITZERLAND |

Telephone | +41 44 632 69 87 |

jenny@ifd.mavt.ethz.ch | |

Department | Mechanical and Process Engineering |

Relationship | Full Professor |

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

151-0076-11L | αCentauri Prerequisite: Enrollment for 151-0076-10L αCentauri in HS22. | 14 credits | 15A | P. Jenny | |

Abstract | Students develop and build a product from A-Z! They work in teams and independently, learn to structure problems, to identify solutions, system analysis and simulations, as well as presentation and documentation techniques. They build the product with access to a machine shop and state of the art engineering tools (Matlab, Simulink, etc). | ||||

Objective | The various objectives of the Focus Project are: - Synthesizing and deepening the theoretical knowledge from the basic courses of the 1. - 4. semester - Team organization, work in teams, increase of interpersonal skills - Independence, initiative, independent learning of new topic contents - Problem structuring, solution identification in indistinct problem definitions, searches of information - System description and simulation - Presentation methods, writing of a document - Ability to make decisions, implementation skills - Workshop and industrial contacts - Learning and recess of special knowledge - Control of most modern engineering tools (Matlab, Simulink, CAD, CAE, PDM) | ||||

151-0110-00L | Compressible Flows | 4 credits | 2V + 1U | P. Jenny, A. A. Kubik | |

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, 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 | ||||

151-0212-00L | Advanced CFD Methods | 4 credits | 2V + 1U | P. Jenny | |

Abstract | Fundamental and advanced numerical methods used in commercial and open-source CFD codes will be explained. The main focus is on numerical methods for conservation laws with discontinuities, which is relevant for trans- and hypersonic gas dynamics problems, but also CFD of incompressible flows, Direct Simulation Monte Carlo and the Lattice Boltzmann method are explained. | ||||

Objective | Knowing what's behind a state-of-the-art CFD code is not only important for developers, but also for users in order to choose the right methods and to achieve meaningful and accurate numerical results. Acquiring this knowledge is the main goal of this course. Established numerical methods to solve the incompressible and compressible Navier-Stokes equations are explained, whereas the focus lies on finite volume methods for compressible flow simulations. In that context, first the main theory and then numerical schemes related to hyperbolic conservation laws are explained, whereas not only examples from fluid mechanics, but also simpler, yet illustrative ones are considered (e.g. Burgers and traffic flow equations). In addition, two less commonly used yet powerful approaches, i.e., the Direct Simulation Monte Carlo (DSMC) and Lattice Boltzmann methods, are introduced. For most exercises a C++ code will have to be modified and applied. | ||||

Content | - Finite-difference vs. finite-element vs. finite-volume methods - Basic approach to simulate incompressible flows - Brief introduction to turbulence modeling - Theory and numerical methods for compressible flow simulations - Direct Simulation Monte Carlo (DSMC) - Lattice Boltzmann method | ||||

Lecture notes | Part of the course is based on the referenced books. In addition, the participants receive a manuscript and the slides. | ||||

Literature | "Computational Fluid Dynamics" by H. K. Versteeg and W. Malalasekera. "Finite Volume Methods for Hyperbolic Problems" by R. J. Leveque. | ||||

Prerequisites / Notice | Basic knowledge in - fluid dynamics - numerical mathematics - programming (programming language is not important, but C++ is of advantage) | ||||

151-0980-00L | Biofluiddynamics | 4 credits | 2V + 1U | D. Obrist, P. Jenny | |

Abstract | Introduction to the fluid dynamics of the human body and the modeling of physiological flow processes (biomedical fluid dynamics). | ||||

Objective | A basic understanding of fluid dynamical processes in the human body. Knowledge of the basic concepts of fluid dynamics and the ability to apply these concepts appropriately. | ||||

Content | This lecture is an introduction to the fluid dynamics of the human body (biomedical fluid dynamics). For selected topics of human physiology, we introduce fundamental concepts of fluid dynamics (e.g., creeping flow, incompressible flow, flow in porous media, flow with particles, fluid-structure interaction) and use them to model physiological flow processes. The list of studied topics includes the cardiovascular system and related diseases, blood rheology, microcirculation, respiratory fluid dynamics and fluid dynamics of the inner ear. | ||||

Lecture notes | Lecture notes are provided electronically. | ||||

Literature | A list of books on selected topics of biofluiddynamics can be found on the course web page. | ||||

151-1053-00L | Thermo- and Fluid Dynamics | 0 credits | 2K | P. Jenny, R. S. Abhari, F. Coletti, G. Haller, C. Müller, N. Noiray, A. Steinfeld, O. Supponen | |

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 | |

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 |