Sweden, April 23, 2014

A three-day course in "Applied LES, DES, PANS and URANS for Industry" will be
given at Chalmers, Gothenburg, Sweden, between 23-25 April 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=4831#.Uw44mP3lfwI