A Zero-Equation Model for External Aerodynamics

Authors

  • MM Rahman Hangzhou Dianzi University, School of Mechanical Engineering, 310018 Hangzhou, China
  • Xueting Zhang Hangzhou Dianzi University, School of Mechanical Engineering, 310018 Hangzhou, China
  • K Hasan Hangzhou Dianzi University, School of Mechanical Engineering, 310018 Hangzhou, China
  • Sheng Chen Hangzhou Dianzi University, School of Mechanical Engineering, 310018 Hangzhou, China

Keywords:

Zero-equation model, Dilation symmetry, Stress length, order function, Wall turbulence

Abstract

The zero-equation model (ZEM) has been generalized for aerodynamic applications by eliminating the thickness of boundary-layer (BL) dependency to construct the stress length parameter . The SED (Structural Ensemble Dynamics) postulate evaluates the using the order function based on universal multi-layer structures for wall turbulence. The SED concept is further employed to optimize the profiles of the turbulent kinetic energy and dissipation rate with turbulent BL flows. Results demonstrate that the multilayer ZEM receives a remarkable achievement in the prediction of wall-bounded turbulence and thus, prevails over the drawbacks encountered in most algebraic turbulence models.

MIJST, Vol. 11, June 2023 : 21-30

DOI: https://doi.org/10.47981/j.mijst.11(01)2023.403(21-30)

Abstract
7
PDF
4

Downloads

Published

2023-06-25

How to Cite

Rahman, M. ., Zhang, X. ., Hasan, K., & Chen, S. . (2023). A Zero-Equation Model for External Aerodynamics. MIST International Journal of Science and Technology, 11(1), 21–30. Retrieved from https://banglajol.info/index.php/MIJST/article/view/67254

Issue

Vol 11: June 2023

Section

Articles

License

Copyright (c) 2023 MIST International Journal of Science and Technology

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.