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International Journal of CFD Case Studies - Volume 8

NAFEMS International Journal of CFD Case Studies

Volume 8, December 2009

ISSN 1462-236X

The papers in this eighth volume of the Journal indicate the wide range of applications in which CFD interacts with industrial engineering design. A reader briefly glancing at the paper titles might also conclude that each covers a separate area of engineering: external aerodynamics, gas turbine combustion, unsteady internal flow in fluid power components, automobile engine analysis and industrial paint spraying. However, there are a couple of themes in the papers presented in this edition: fluid structure interaction and sprays.

The paper by Arnold et al deals with interaction between the aircraft structure and external air flow with the additional complication of aircraft manoeuvres. The multiple path flow in a pneumatic piston valve, discussed in the paper by Rüdiger et al, illustrates another type of interaction with vortex generation and valve switching.

The CFD simulation of sprays is important in a number of industries. As shown in Tatschl’s paper they play a major part in diesel combustion efficiency and emissions. Similarly, combustion in gas-turbines relies on fuel spray nozzles and the paper by Poovanna and Sridhara discusses modifications to the nozzle geometry. Numerical models for electro-static and pneumatic sprays have been incorporated into CFD models by Scheibe et al to predict paint film thickness distribution and transfer efficiency.

Hopefully, and it is an important purpose of this Journal, cross-linking between disparate industries and new approaches may be made where CFD practitioners have to tackle similar themes in their work.


Multibody Simulation of an Oscillating Aeroelastic Wing Model

Jürgen Arnold1, Gunnar Einarsson2, Wolf Krüger1
1DLR German Aerospace Center, Institute of Aeroelasticity, D-37073 Göttingen, Germany
2DLR German Aerospace Center, Institute of Aerodynamics and Flow Technology, D-38108 Braunschweig, Germany

pp. 5-17

Numerical Investigation of Droplet Distribution from a Pre-filming Air-blast Atomizer

C.T. Poovanna1 and S.N. Sridhara2
Centre for Rotating Machinery Design, M S Ramaiah School of Advanced Studies. Bangalore, India., corresponding Author

pp. 19-28

Analysis of unsteady fluid flow inside fluid power components – a challenge to CFD-simulation

Rüdiger, F., Leonhard, A., Wustmann, W. und Helduser, S.
Technische Universität Dresden, Institut für Fluidtechnik, 01062 Dresden, Germany

pp. 29-37

Numerical Simulation of Painting Processes

Andreas Scheibe, Engelbert Westkämper and Qiaoyan Ye
Institut für Industrielle Fertigung und Fabrikbetrieb, Universität Stuttgart, Germany

pp. 39-50

3D-CFD Simulation of Mixture Formation, Combustion and Heat Transfer Processes with AVL FIRE

Reinhard Tatschl
Advanced Simulation Technologies, AVL List GmbH, A-8020 Graz, Austria

pp. 51-63

Further Details

Each of these case studies has been reviewed by members of the CFD working group to ensure that the paper includes:

  • A full description of the industrial relevance of the case study and why it has been performed;
  • A full description of related experimental or analytical data, together with statements as to their quality and accuracy;
  • A description of the CFD model which allows the interested reader to fully appreciate how it simulates the given industrial case;
  • The CFD model is detailed covering the flow physics, geometry, meshing, boundary conditions, fluid properties and the solving processes;
  • A set of results are presented and discussed to facilitate the reader’s appreciation that the work has been performed well and to a high standard.

Any Journal is only as good as the papers it publishes, so the Journal needs contributors who see the importance and benefit of having their work published and used by fellow engineers. Engineers are by nature supportive of colleagues, and authoring a case study paper for the Journal gives senior engineers an opportunity to pass on their hard won knowledge and experience, and in some sense “set the standard” of practice in the field. The Journal publishes CFD case study papers, i.e. investigations, simulations and validation exercises in accordance with CFD best practice guidelines. Original papers covering either traditional CFD, multi-phase flows, combustion and topics such as parallel computing, immersed boundary methods, DNS, LES, FSI, LBM, DEM, etc. are welcomed, book reviews and letters to the Editor are also acceptable.

Potential contributors are welcome to contact the editor, Professor Don McGlinchey at to discuss any aspect of the Journal and the process, from authoring to review to publication. Further details are available here.

Document Details

AuthorGreen. A
Date 1st December 2009


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