
Prof. Germann's Fluid Dynamics Group

Rheology
Course outline: Rheology is the science of the flow and deformation of materials. This course focuses on the rheology of viscoelastic fluids. Special emphasis will be placed on fluids that are relevant to the industry (e.g., to the food industry). Examples of real applications such as the use of wormlike micelles as thickeners in consumer products will be given. Rheometrical techniques and appropriate measuring protocols for the characterization of viscoelastic fluids will be discussed. The rheological models thate are currently available in most computational fluid dynamics (CFD) software packages will be introduced. The predictive capability of some of these models will be analyzed.
The course consists of lecture and discussion sessions. Whereas the lectures will be primarily used cover new material, the discussions will be platforms for application of knowledge. Group work will be assigned in various formats. To prepare the students for the final examination, a review session will be offered at the end of the semester.
Contents:
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Viscoelasticity and viscoelastic phenomena
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Standard flows
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Material functions
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Rheometry
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Polymers, dispersions (emulsions, foams, suspensions), and colloidal systems
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Constitutive modeling
Credits: 3
Lec-Rec: (2-1)
Semesters offered: WS
Prerequisite: Basic knowledge of mathematics, technical mechanics, fluid mechanics
Language: German or English
Textbooks:

F. A. Morrison. Understanding Rheology, Oxford University Press, 2011.

D. Weipert, H. D. Tscheuschner, E. J. Windhab. Rheologie der Lebensmittel, Behr’s Verlag, 1993.

Additional references:
Th. Mezger. Das Rheologie-Handbuch, Vincentz Verlag, 2000.
L. L. Schramm. Emulsions, Foams, Suspensions, and Aerosols, Wiley-VCH, 2014.
R. P. Chhabra, J. F. Richardson. Non-Newtonian Flow and Applied Rheology: Engineering Applications, 2008.
R. G. Larson. The Structure and Rheology of Complex Fluids, Oxford University Press, 1999.
R. B. Bird, O. Hassager. Dynamics of Polymeric Liquids, Volume 1, Fluid Mechanics, 2nd Edition, John Wiley & Sons, 1987.
Fluid mechanics
Course outline: This course aims to introduce the basic concepts of fluid mechanics. The basic equations of fluid mechanics will be introduced. The theory will be applied to idealized flow problems as well as engineering problems. Important fluid phenonoma will be illustrated using video sequences and computer simulations. Classroom experiments will be performed to enhance the students’ understanding.
The course consists of lecture and discussion sessions. The lectures will be primarily used cover new material. In the discussions, practice problems will be solved and open questions regarding the course material will be addressed. Group work will be assigned in various formats. To prepare the students for the final examination, a review session will be offered at the end of the semester.
Contents:
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Fluid properties (density, specific weight, viscosity, surface tension)
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Fluid statics
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Fluid kinematics
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Integral and differential forms of the basic conservation equations (mass, momentum, and energy)
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Dimensional analysis and similarity
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Viscous flow in pipes
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Flow over immersed bodies
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Computational fluid dynamics
Credits: 4
Lec-Rec: (2-2)
Semesters offered: SS
Prerequisites: Basic knowledge of mathematics, experimental physics I+II, technical mechanics
Language: German
Textbook:
F. A. Morrison. An Introduction to Fluid Mechanics, Cambridge University Press, 2013.
Additional references:
F. Durst. Grundlagen der Strömungsmechanik: Eine Einführung in die Theorie der Strömung von Fluiden. Springer, 2006.
J. H. Spurk, N. Aksel. Strömungslehre: Einführung in die Theorie der Strömungen. Springer, 2007.
D. F. Young, B. R. Munson, Th. H. Okiishi, W. W. Huebsch. A Brief Introduction To Fluid Mechanics, John Wiley & Sons, 2011.
D.F. Elger, B.C. Williams, C.T. Crowe, J.A. Roberson. Engineering Fluid Mechanics, Jon Wiley & Sons, 2014.