A Guide to Hybrid RANS-LES Methods: Industrial Examples 
and Theory

(Discounted student rate available for this event )


For many companies there is a growing desire to improve 
the accuracy of their CFD simulations, in order to 
improve correlation to experiments and to allow more of 
their design to be undertaken in Computational Fluid 
Dynamics.

This desire for greater accuracy has led many to look at 
Large Eddy Simulation (LES). Whilst LES models can in 
general provide a much better alternative to RANS models 
for unsteady flows, they do so at a much higher cost, so 
much higher that for high-Reynolds numbers flow these 
costs are too great for general purpose calculations.  

Hybrid RANS-LES methods offer an attractive alternative, 
where RANS methods are applied in regions of the flow 
which are easy to predict (attached, steady flow) and 
Large Eddy Simulation methods in the more challenging 
separated regions. These methods, if correctly applied, 
can provide close to LES accuracy for a greatly reduced 
computational cost.

This seminar will focus on these hybrid RANS-LES methods 
and in particular what improvements they offer over pure 
RANS and LES approaches. Through several presentations 
from experts representing some of the key engineering 
sectors (automotive, aerospace & turbo-machinery), 
practical examples of these methods will be presented 
offering attendees a chance to understand and question if 
these methods could be applied to their simulations.

In addition to more applied talks, there will be several 
talks from globally recognized experts on hybrid RANS-LES 
methods, who will talk of the latest developments and 
bring concrete examples of where hybrid RANS-LES has 
brought about improvements.

The major CFD code vendors will also be represented at 
this seminar, allowing attendees to see the full range of 
options open to their company or institution.

With this combination of activities, delegates will leave 
the seminar having a better understanding both of the 
theory behind hybrid RANS-LES methods but also concrete 
industrial examples of their real-life use.



Who Should Attend?

This seminar will be of interest to academics as well as 
practitioners and industrial users of commercial CFD 
codes. The focus of the talks will be on hybrid RANS-LES 
methods, but people with a general interest in the 
application of CFD to complex real-life problems will 
also benefit from attending this seminar.




Agenda

09:00             Coffee & Registration

09:45             Chairman’s Welcome & Introduction
                       Neil Ashton, University of 
Manchester

                       Towards a Predictive CFD for 
Turbomachinary
                       Paul Tucker, University of 
Cambridge

                       Vendor Industrial Case Study: 
ANSYS

                       Improvements to DES and 
implementation in Industrial Codes
                       Charlie Mockett, CFD Software E+F 
GmbH

                       Vendor Industrial Case Study- CD-
Adapco

                       Fixed and Rotary Wing Applications 
of DES
                       George Barakos, University of 
Glasgow

                       Vendor Industrial Case Study - 
Numeca

13:05             Lunch Break

                       Benefits and Common Pitfalls of 
using Hybrid RANS-LES Methods for 
                       Flow Noise Prediction
                       Fred Mendonca, ESI Group

                       Vendor Industrial Case Study - 
Altair

                       Eddy-Resolving Methods for Gas 
Turbines: Experience, Prospects and
                       Challenges
                       Kevin Menzies, Rolls-Royce

                       Vendor Industrial Case Study - Exa

                       Unsteady Simulation for Automotive 
Applications
                       Lara Schembri Puglisevich, Jaguar 
Land Rover

16:55             Summary and Closing Remarks

17:15             Close



VenueHeythrop Park

Heythrop Park
The Drive
Enstone
Oxfordshire
OX7 5UE or (OX7 5UF for SAT NAV)
01608 673333  info@heythroppark.co.uk

Heythrop Park Resort is a unique and luxury venue set in 
440 acres of stunning Oxfordshire Countryside.

Located just 12 miles from Oxford, the central location 
makes travelling from both London and Birmingham easily 
accessible. Over 500 free car parking spaces on site, 
direct train lines from Paddington Train Station and 
within 90 minutes drive from Birmingham International 
Airport & London Heathrow. Heythrop Park couldn’t be more 
convenient.