Realizable Dynamic LES of High Reynolds Number Turbulent Wall Bounded Flows

Ahmadi, Ghazaleh; Kassem, Hassan; Mokhtarpoor, Reza; Stoevesandt, Bernhard; Peinke, Joachim; Stefan, Heinz G.

doi:10.2514/6.2019-2140

Cited by 1 publication

(1 citation statement)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Existing periodic hill flow simulations indicate that CES used on the same grids as RANS has the potential to deal with this problem in a much more appropriate way, the question is whether the same conclusion can be drawn for more complex flows. Due to the low level of flow resolution under such conditions, it appears to be beneficial to implement a dynamic calculation of model parameters in CES methods [58,59,[66][67][68][69][70], which is currently not accomplished; C4. CES methods were currently only applied to turbulent velocity fields.…”

Section: Some Challengesmentioning

confidence: 99%

Cutting-Edge Turbulence Simulation Methods for Wind Energy and Aerospace Problems

Stefan

Peinke

Stoevesandt

2021

Fluids

Self Cite

View full text Add to dashboard Cite

The availability of reliable and efficient turbulent flow simulation methods is highly beneficial for wind energy and aerospace developments. However, existing simulation methods suffer from significant shortcomings. In particular, the most promising methods (hybrid RANS-LES methods) face divergent developments over decades, there is a significant waste of resources and opportunities. It is very likely that this development will continue as long as there is little awareness of conceptional differences of hybrid methods and their implications. The main purpose of this paper is to contribute to such clarification by identifying a basic requirement for the proper functioning of hybrid RANS-LES methods: a physically correct communication of RANS and LES modes. The state of the art of continuous eddy simulations (CES) methods (which include the required mode communication) is described and requirements for further developments are presented.

show abstract