Crank-Nicholson Scheme of the Zeroth-Order Approximate Deconvolution Model of Turbulence Based On a Mixed Formulation

International Journal of Automotive Science and Technology

Mustafa Ağgül¹ 

[1] HACETTEPE UNIVERSITY;

关键词: approximate deconvolution;    crank-nicholson;    stability;    accuracy;    turbulence models;    space filter;   

DOI  :  10.30939/ijastech..729443

来源: DOAJ

【 摘 要 】

This report presents a method with high spatial and temporal accuracy for estimating solutions of Navier-Stokes equations at high Reynolds number. It employs Crank-Nicolson time discretization along with the zeroth-order ap-proximate deconvolution model of turbulence to regularize the flow prob-lem; solves a deviation of the Navier Stokes equation instead. Both theoreti-cal and computational findings of this report illustrate that the model pro-duces a high order of accuracy and stability. Furthermore, measurements of the drag and lift coefficients of a benchmark problem verify the potential of the model in this kind of computations.

【 授权许可】

Unknown