NAFEMS International Journal of CFD Case Studies

Volume 9, March 2011

ISSN 1462-236X
https://doi.org/10.59972/e09jcgj1

The ninth volume of the Journal presents a selection of papers where authors have faced the task of using CFD where industrial engineering reality demands additional thought or application.

Each paper presents models or techniques to extend or enhance the standard CFD modelling. The paper by Kahrimanovic et al deals with the design of high temperature duty cyclones where the wall roughness model is extended to account for joints between the refractory brick lining.

The heat transfer in an automotive headlamp, discussed in the paper by Mielke et al, requires an approach where CFD is conjoined with other software to simulate the high levels of thermal radiation.

The increasing trend of replacing expensive experimental tests by simulation or “virtual testing” is contributed to in the paper by Sayma. Here a method is proposed that allows for the simulated variation of rotational speed and throttle changes of a gas turbine compressor, mimicking its performance in a test rig.

The paper by Schöck et al deals with the laminar mixing of highly viscous fluids where, with normal methods, numerical diffusion would dominate the actual molecular diffusion. A trajectory method is applied to overcome this limitation.

The simulation of industrial paint dryers requires accurate heat transfer methods when applied to complicated shapes. The difficulty in industrial applications is selecting the right turbulence model and deciding appropriate local wall mesh density. This is discussed in the paper by Ye et al.

Contents

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 cfd.journal@nafems.org to discuss any aspect of the Journal and the process, from authoring to review to publication. Further details are available here.