Solid and Fluid Mechanics 13 maart 2014

Transcription

1 Solid and Fluid Mechanics 13 maart 2014 René Pecnik & René Delfos Coordinator Solids & Fluids + Short Introduction + Engineering Mechanics (ED & SOCM) (Hans Goosen) + Fluid Mechanics (FM) (Wim-Paul Breugem) + Some more stories + Questions?

2 Why study Solid and Fluid Mechanics? - Some examples: - Fingering Saffman-Taylor instability - Rattleback - Euler s disc - A gas turbine 2

3 Why study Solid and Fluid Mechanics? - How much? (in my design) (deformation, strength, resonance frequencies) -> ME-PME (Precision and Microsystems Engineering) - How much? (in my design) (chemical conversion, power production) -> ME-SPET (Sustainable Process & Energy Technology) - Why and how? (we still could use it in a design) ( what is the underlying physics ) -> ME-SFM (Solid and Fluid Mechanics SFM is about the fundamentals of Mech. Eng. 3 Interdepartmental between P&E and PME

4 Example pipe friction: Moody-chart? (1) We want to understand rather than just use turbulent friction (flow structures)

5 Example pipe friction: Moody-chart? (2) Movie of Direct Numerical Simulation of realistic turbulence on a core parallel computer

6 Example pipe friction: Moody-chart? (2) We want to modify (reduce) friction: (wall; additives) Experimental data & scaling laws Flow structure from a simulation + modelling

7 Example pipe friction: Moody-chart? (3) Movie of fibres in pipe flow at two different concentrations α = 20; Re = 5000 α = 60; Re = 7500

8 MSc Program layout Courses (1 st year) Obligatory SFM: ~ 29 ECTS Obligatory specialisation: ~ 12 ECTS Elective: ~ 20 ECTS Total 60+ ECTS 1 st semester: the fundamentals 2 nd semester: how we use them Projects (2 nd year) Internship 15 ECTS MSc project 45 ECTS of which 10 ECTS literature study with oral presentation. Possibility to combine internship and MSc project. For instance: Internship in Industry -> MSc project at University or vice versa

9 Modulekaart = vakkenverdeling

10 Specialisations FLUID MECHANICS Wim-Paul Breugem part of P&E (Process & Energy Technology) dept. Fluid Mechanics Westerweel, Boersma, (Ooms, Eckhardt), Delfos ENGINEERING MECHANICS Hans Goosen part of PME (Precision and Microsystems Engineering) dept. Engineering Dynamics Schwab (Tiso, de Klerk) (+vacancy) Structural Optimization and Mechanics van Keulen, (Langelaar), Goosen

11 Modules Engineering Dynamics

12 Modules Fluid Mechanics

13 Structural Optimization and Mechanics

14 Multi-phase flow: flotation Can we improve steel quality (i.e., remove solids from liquid steel) using rising gas bubbles? ->Q: Wake or surface capture?

15 1 Casting strand 2 Tundish simulation 3 Tundish water model 4 Bubble plume 5 Slag layer

16 Measuring the flow field & the concentration

17 Measuring particle adhesion: fine (left); coarse (right

18 Internship (stage) 15 EC (niet voor ex-hbo!) Can be done abroad (especially for Dutch students): Recent in Stanford, ETH (Zürich), Osaka, NTNU, DLR (Göttingen), Numeca (Brussels), Labode Ondas e Correntes (Rio de Janeiro) or in the Netherlands (especially for International students); Recent in TUDelft(!), Teijin, KNMI, Shell, Heerema 18

19 Internship (2) Teijin (production of Aramid-fibers) - spin nozzle (Fluid mechanics) - stick-slip during strain hardening (Computational Mechanics) - filament vibration and stability (Experimental Dynamics) 19

20 Master-thesis project 45 EC Can be done in a company, usually in your laboratory. Prediction of turbulent transition through trip wires using flow simulation. Prediction of CT-scanner floor stability 20

21 Our approach: water tunnel study & simulation Tunnel model = Ahmed body with/without spoilers 21

22 Water tunnel study & simulation (2) Spoilers reduce drag but create strong longitudinal vortices Simulation <=> Measurements 22

23 The next step in your career: Industry (R&D): Philips, ASML, Shell, Tata-steel, Akzo-Nobel, DSM, Canon-OCE, Bronkhorst, NXP, BMW GTI s: TNO, MARIN, NLR, Process technology, chemical industry, metal industry, energy technology, aeronautics, dredging industry, automotive industry, wind energy, climate control, food & health, meteorology, University (obtaining a Ph.D.): some 50% of SFM-students! Education in research. Later on, R&D or University

24 FLUID MECHANICS Fluid Mechanics Section 3 full-time prof: J. Westerweel, BJ. Boersma D. Roekaerts 3 part-time prof: G. Ooms, B. Eckhardt R. Henkes 8 U(H)D: R. Pecnik, R. Delfos, M. Pourquié, D. Tam, C. Poelma, WP. Breugem, Gerrit Elsinga, M. Tummers 1 post-doc, ~15 Ph.D. students. Yearly M.Sc. students (in SFM, SPET, AP)

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26 SOLID MECHANICS Engineering Mechanics

27 Engineering Mechanics Groups Engineering Dynamics (Schwab, Tiso, de Klerk) Structural Optimization & Mechanics (van Keulen, Goosen, Langelaar ) 27

28 Research Focus Engineering Dynamics Focus: Multifield Multibody Dynamics & Statics Application Fields: Microsystems Mechatronics Aspects: Fundamentals Numerical Methods Experimental Techniques But also: Aerospace Biomechanics Sports Automotive 28

29 Examples Engineering Dynamics 29

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31 Research Focus Structural Optimization & Computational Mechanics Focus: Multifield Multilevel Statics & Dynamics Aspects: Fundamentals Numerical Methods Optimization and Design Experimental Validation Application Fields: Micro-devices and Micro-systems But also: Aerospace Biomechanics Maritime 31

32 Examples Structural Optimization & Computational Mechanics 32

33 Examples Structural Optimization & Computational Mechanics 33

34 Examples of Collaboration Infineon NXP Philips (research) ASML Dutch Space ESA AOES Bronkhorst High Tech Aquamarijn OCE Univ. of Leeds Imtek Airbus Bosch BMW Univ. of Stuttgart Univ. of Florida Technion Chalmers 34

35 (slightly) different interests? SOLID MECHANICS - You may join the presentation March 27 of Precision and Microsystems Engineering (PME) (or contact ir. Jan Neve, PME-coordinator) FLUID MECHANICS - You probably already joined the presentation last Tuesday of Sustainable Processes and Energy Technology (SPET) (or contact dr.ir. Joop ter Horst / dr.ir. Mark Tummers SPET-coordinators) Or just pass by René Pecnik (or me) with questions... choose SFM (or SPET...) 35

36 Honours Programme Master (HPM) A tailor-made rigorous programme of 30 EC for motivated students seeking a unique challenge in their course work. Build your own programme based on an inter- or mono-disciplinary approach. Become part of an active honours community and benefit from social and networking events. How does it work? Information session Selection process Match-up with coach Planning the programme Start 2 nd semester of master Certificate upon successful completion More info? or via our HPM coordinator, prof. Thijs Vlugt

37 Questions? SFM & FM: René Pecnik Room K phone EM: Hans Goosen Room G phone