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Solid and Fluid Mechanics13 maart 2014
René Pecnik & René Delfos
Coordinator Solids & Fluids
r.delfos@tudelft.nl
+ Short Introduction+ Engineering Mechanics (ED & SOCM)
(Hans Goosen)
+ Fluid Mechanics (FM)(Wim-Paul Breugem)
+ Some more stories+ Questions?
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- Some examples:
- Fingering ‘Saffman-Taylor instability’- Rattleback
- Euler’s disc- A gas turbine
Why study ‘Solid and Fluid Mechanics’?
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- 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.
Interdepartmental between P&E and PME
Why study ‘Solid and Fluid Mechanics’?
• We want to understand rather than just useturbulent friction (flow structures)
Example pipe friction: Moody-chart? (1)
Example pipe friction: Moody-chart? (2)• Movie of Direct Numerical Simulation of ‘realistic’ turbulence
on a 16000-core parallel computer
Example pipe friction: Moody-chart? (2)• We want to modify (reduce) friction: (wall; additives)
Flow structure from a simulation + modelling
Experimental data& scaling laws
Example pipe friction: Moody-chart? (3)• Movie of fibres in pipe flow at two different concentrations
α = 20; Re = 5000 α = 60; Re = 7500
MSc Program layout
Courses (1st year)• Obligatory SFM: ~ 29 ECTS
• Obligatory specialisation: ~ 12 ECTS
• Elective: ~ 20 ECTS
• Total 60+ ECTS
• 1st semester: the fundamentals
• 2nd semester: how we use them
Projects (2nd 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
Modulekaart = vakkenverdeling
SpecialisationsFLUID MECHANICS Wim-Paul Breugempart of P&E (Process & Energy Technology) dept.
• Fluid MechanicsWesterweel, 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
Modules Engineering Dynamics
Modules Fluid Mechanics
Structural Optimization and Mechanics
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’?
1 Casting strand
2 Tundish simulation
3 Tundish water model
4 Bubble plume
5 Slag layer
Measuring the flow field & the concentration
Measuring particle adhesion: fine (left); coarse (right
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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…
Internship (stage) 15 EC (niet voor ex-HBO!)
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Teijin (production of Aramid-fibers)
Internship (2)
- spin nozzle (Fluid mechanics)- stick-slip during strain hardening
(Computational Mechanics)- filament vibration and stability
(Experimental Dynamics)
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Can be done in a company, usually in ‘your laboratory’.
Master-thesis project 45 EC
Prediction of turbulent transition through ‘trip wires’ using flow simulation.
Prediction of CT-scanner floor stability
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Our approach: water tunnel study & simulation• Tunnel model = ‘Ahmed body’ with/without spoilers
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Water tunnel study & simulation (2)• Spoilers reduce drag but create strong longitudinal vortices
Simulation <=> Measurements
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
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 12-14 M.Sc. students (in SFM, SPET, AP)
www.pe.tudelft.nl/FM
FLUID MECHANICS
Engineering Mechanics
SOLID MECHANICS
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Engineering Mechanics Groups• Engineering Dynamics
(Schwab, Tiso, de Klerk)
• Structural Optimization & Mechanics(van Keulen, Goosen, Langelaar…)
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Research FocusEngineering Dynamics
Focus:
• Multifield
• Multibody
• Dynamics & Statics
Aspects:
• Fundamentals
• Numerical Methods
• Experimental Techniques
Application Fields:
• Microsystems
• Mechatronics
But also:
• Aerospace
• Biomechanics
• Sports
• Automotive
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ExamplesEngineering Dynamics
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Research FocusStructural 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
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ExamplesStructural Optimization & Computational
Mechanics
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ExamplesStructural Optimization & Computational
Mechanics
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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
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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 TummersSPET-coordinators)
Or just pass by René Pecnik (or me) with questions...www.delftpe.nl/Education choose ‘SFM’ (or ‘SPET’...)
(slightly) different interests?
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 2nd semester of master
• Certificate upon successful completion
More info? www.honours.tudelft.nl
or via our HPM coordinator, prof. Thijs Vlugt
Questions?SFM & FM: René Pecnik Room K-1-220
phone 89153 r.pecnik@tudelft.nlEM: Hans Goosen Room G-1-400
phone 86500 j.f.l.goosen@tudelft.nl
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