Short Course on Atomization & Sprays 2019

25-28 February 2019 in Darmstadt, Germany

We present the current understanding and state-of-the-art of atomization fundamentals, their realization in atomizer systems and their application in a wide variety of engineering branches, including spray drying, spray coating, spray cooling, fuel injection, etc. The course is offered by the profile area Thermo-Fluids & Interfaces in cooperation with DFG SFB/TRR 75.

From theory to practice
Fundamental aspects are addressed theoretically in terms of hydrodynamic instabilities of liquid jets and sheets – primary atomization. This is followed by considerations about the break-up of single droplets – secondary atomization. Engineering solutions for realizing the different atomization mechanisms are then presented.

Experimental aspects
The second day is devoted to experimental descriptors and diagnostics of sprays and droplets. Both non-optical and optical techniques are addressed. Focus is placed on drop size and velocity determination, but an overview is also given about more advanced techniques, allowing temperature and composition to be determined.

Modeling and Simulation
The third day presents possibilities for simulating atomization and spray processes. Modelling of primary atomization is discussed, as well as transport processes within sprays and spray/wall interactions.

Applications
The final day of the course covers a wide variety of applications and how spray systems have been developed and customized to meet specific requirements and constraints.

Discuss with renowned experts and get in touch with people from the industry
The program foresees intensive discussions between the participants and the lecturers and also among the participants. The aim is to address on-going development and application problems suggested by the participants. Industrial exhibitors of spray diagnostics will be available on the second day for demonstrations and discussions.

The course language is English.

Course director:
Cameron Tropea (Institute for Fluid Mechanics and Aerodynamics, TU Darmstadt)

Monday 25 February 2019
Fundamentals

8:30 Registration, Distribution of Lecture Notes

9:00 Welcome, Introductions, Overview (Tropea)

9:30 Techniques of Atomization: Overview of Atomizers and their Applications (Tropea)

10:30 Coffee

11:00 Stability Analysis of Liquid Jets and Sheets (Brenn)

12:15 Lunch

13:15 Fundamentals of Atomization (Roisman)

14:00 Breakup and Atomization Models (Ashgriz)

15:15 Coffee

15:45 Secondary Atomization (Roisman)

16:30 Drop-Drop Interactions (Brenn)

17:15 Close of first day with beer and pretzels


Tuesday 26 February 2019
Characterization and Diagnostics

-Exhibition of spray diagnostic equipment during lunch and coffee breaks-

9:00 Spray Characterization – Quantifiers and Standards (Tropea)

9:45 Imaging Techniques (Leick)

10:30 Coffee

11:00 Phase Doppler Techniques (Tropea)

12:00 Lunch

13:00 Other Optical Techniques (Tropea)

13:45 Measurement of Drop Temperature and Composition (Lemoine)

14:45 Coffee

15:15 Nozzle Designs and their Spray Characteristics (Ashgriz)

16:00 Atomization of Complex Fluids (Brenn)

16:45 Flash Boiling Atomization (Sher)

17:30 Close of Second Day


Wednesday 27 February 2019
Modeling and Simulation

9:00 Direct Numerical Simulation of Primary Jet Breakup (Weigand)

10:30 Coffee

11:00 A Survey on Numerical Simulation Methods for Multiphase Flows (Bothe)

11:45 Volume-of-Fluid Method for Drop Collision (Bothe)

12:30 Lunch

13:30 Fundamentals of Modelling (Yarin)

14:15 Heat and Mass Transfer from Drops: Fundamentals (Brenn)

15:00 Coffee

15:30 Powder Production in Spray Processes (Fritsching)

16:15 Drop Combustion (Sher)

17:00 Close of Third Day

19:00 Short Course Dinner


Thursday 28 February 2019
Applications & Advanced Topics

9:00 Atomizers for Fuel Injection (Leick)

10:00 Drop/Wall Interactions (Yarin)

10:45 Coffee

11:15 Spray Painting (Chandra)

12:00 Atomization in Forensic and High Power Applications (Yarin)

12:45 Lunch

13:45 Spray Coating (Chandra)

14.30 Droplet Impingement Cooling with Evaporation (Stephan)

15:15 Spray Cooling (Roisman)

16:00 Close of Short Course

Download the printable program (PDF)

Prof. Dr. Nasser Ashgriz
Department of Mechanical and Industrial Engineering, University of Toronto

Prof. Dr. Dieter Bothe
Institute of Mathematical Modeling and Analysis, TU Darmstadt

Prof. Dr.-Ing. Günter Brenn
Institute of Fluid Mechanics and Heat Transfer, TU Graz

Prof. Dr. Sanjeev Chandra
Department of Mechanical and Industrial Engineering, University of Toronto

Prof. Dr.-Ing. Udo Fritsching
Department Multiphase Flow, Heat- and Mass-Transfer, Leibniz Institute for Materials Engineering (IWT) Bremen

Dr.-Ing. Philippe Leick
Engineering Combustion System, Robert Bosch GmbH Stuttgart

Prof. Fabrice Lemoine
Laboratoire d’Energétique et de Mécanique Théorique et Appliquée (LEMTA), Université de Lorraine, Nancy

Prof. Dr. Ilia V. Roisman
Institute for Fluid Mechanics and Aerodynamics, TU Darmstadt

Prof. Eran Sher
Faculty of Aerospace Engineering, Technion – Israel Institute of Technology

Prof. Dr.-Ing. Peter Stephan
Institute for Technical Thermodynamics, TU Darmstadt

Prof. Dr.-Ing. Cameron Tropea
Institute for Fluid Mechanics and Aerodynamics, TU Darmstadt

Prof. Dr.-Ing. Bernhard Weigand
Institute of Aerospace Thermodynamics (ITLR), University of Stuttgart

Prof. Dr. Alexander L. Yarin
Department of Mechanical and Industrial Engineering, University of Illinois at Chicago

Registration is closed. We would like to thank all participants and lecturers for a successful 5th short course.