Explicit and implicit LES closures for Burgers turbulence

作者:

Highlights:

• A posteriori error analysis on implicit and explicit large eddy simulation closure models is performed.

• Variants of functional and structural models equipped with various low-pass filters are developed.

• An enhanced version of the van Cittert algorithm is put forth to accelerate the convergence of AD-LES.

• The modeling abilities of these methods have been tested for the Burgers turbulence problem.

• CRWENO method is found to be accurate in capturing longer inertial range with no pile-up.

摘要

•A posteriori error analysis on implicit and explicit large eddy simulation closure models is performed.•Variants of functional and structural models equipped with various low-pass filters are developed.•An enhanced version of the van Cittert algorithm is put forth to accelerate the convergence of AD-LES.•The modeling abilities of these methods have been tested for the Burgers turbulence problem.•CRWENO method is found to be accurate in capturing longer inertial range with no pile-up.

论文关键词:Large eddy simulations,Approximate deconvolution,Explicit filtering,Implicit LES,Closure modeling,Shock capturing

论文评审过程:Received 6 December 2016, Revised 18 April 2017, Available online 17 June 2017, Version of Record 27 June 2017.

论文官网地址:https://doi.org/10.1016/j.cam.2017.06.003