A three-day course in "Applied LES, DES, PANS and URANS for Industry" will be given at Chalmers, Gothenburg, Sweden, between 27-29 October 2014.The course will cover three important applications of CFD techniques in industry: prediction using unsteady CFD simulations (LES, DES, PANS, URANS), CFD for flow control and aerodynamic shape optimization. We believe that the course is useful for engineers and researcher in all industrial sectors where unsteady flows are of importance.

Description:

The industry has started to introduce time-dependent numerical simulation such as large eddy simulation (LES), unsteady RANS or hybrid approaches such as DES in their development process. The advantage of these techniques is much higher accuracy of the prediction compared with steady RANS simulations but also possibility to replace costly physical testing and simulate flow situations where experiments are difficult or impossible. Although most commercial (and open source) CFD software have option to run unsteady methods, their usage requires knowledge in running unsteady simulations which puts different requirements than steady RANS on all steps of the process. Being resolving techniques, these techniques put higher requirements on all steps in the project, from the quality of the computational grids, numerical discretization, performing the CFD simulation to analysis of large amount of data obtained from a time-dependent simulation.

This aim of this course is to equip an engineer or researcher with the knowledge to run unsteady CFD simulations for the application of his interest. After the course, the participant will be able to:

- choose the adequate unsteady technique

- prepare computational grid for that is required for the chosen technique

- chose appropriate spatial and temporal discretization and other parameters in

the simulation

- run the simulation and do appropriate monitoring of the results

- postprocessor the results and evaluate the quality of the achieved prediction

We will start with introduction in how time-dependent techniques such as Large-Eddy Simulations (LES), Detached-Eddy Simulations (DES), Partially-Averaged Navies-Stokes (PANS) and unsteady RANS (URANS) can be used in vehicle aerodynamics. We will discuss differences between these techniques and give best practical guidelines for usage of each technique. We will show when each of the techniques could/should be used and how to use it.

We believe that the course is useful for engineers and researcher in all industrial sectors where unsteady flows are of importance. The practical example that we will study during the course come from vehicle aerodynamics and bluff body aerodynamics but the method is by no means limited to these two fields. The same methodology can be used in many other industrial fields where separated and unsteady flows occur.

The course will cover three important applications of CFD techniques in industry:

prediction using unsteady CFD simulations (LES, DES, PANS, URANS), CFD for flow control and aerodynamic shape optimization.

Details about the course with theory and computer exercises can be found at

http://sinisa-aerodynamics.se/courses-training-2/

Registration is here https://www.chalmersprofessional.se/en/apply?tags=industriteknik&id=5327