Author:
Kalkote Nikhil,Kumar Ashutosh,Assam Ashwani,Eswaran Vinayak
Abstract
PurposeThe purpose of this paper is to study the predictability of the recently proposed length scale-based two-equationk-kLmodel for external aerodynamic flows such as those also encountered in the high-lift devices.Design/methodology/approachThe two-equationk-kLmodel solves the transport equations of turbulent kinetic energy (TKE) and the product of TKE and the integral length scale to obtain the effect of turbulence on the mean flow field. In theory, the use of governing equation for length scale (kL) along with the TKE promises applicability in a wide range of applications in both free-shear and wall-bounded flows with eddy-resolving capability.FindingsThe model is implemented in the in-house unstructured grid computational fluid dynamics solver to investigate its performance for airfoils in difficult-to-predict situations, including stalling and separation. The numerical findings show the good capability of the model in handling the complex flow physics in the external aerodynamic computations.Originality/valueThe model performance is studied for stationary turbulent external aerodynamic flows, using five different airfoils, including two multi-element airfoils in high-lift configurations which, in the knowledge of the authors, have not been simulated withk-kLmodel until now.
Subject
Applied Mathematics,Computer Science Applications,Mechanical Engineering,Mechanics of Materials
Reference42 articles.
1. Assessments of a Turbulence Model based on Menter's Modification to Rotta's Two-Equation Model
2. Assessments of k-kl turbulence model based on Menter’s modification to Rotta’s two-equation model;International Journal of Aerospace Engineering,2015
3. Development of kl-based linear, nonlinear, and full Reynolds stress turbulence models;AIAA Scitech Forum,2019
4. Abdol-Hamid, K.S. Carlson, J.-R. and Rumsey, C.L. (2016), AIAA AVIATION Forum, American Institute of Aeronautics and Astronautics, 2016, Ch. Verification and Validation of the k-kL Turbulence Model in FUN3D and CFL3D Codes, 0, doi: 10.2514/6.2016-3941, available at: https://doi.org/10.2514/6.2016-3941.
5. High order preserving residual distribution schemes for the laminar and turbulent Navier–Stokes on arbitrary grids,2013
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献