Work

Optimization of RANS Coefficients for Steady and Decelerating Turbulent Jets

Year: 2025

Type: article

Abstract: The RANS model is optimized for steady and decelerating axisymmetric turbulent jets.The   ε model was found to be the most suitable candidate for optimization, and two optimized coefficient sets were developed as a result.Each set minimizes the sum of root mean square errors, with one set focused on mean velocities and the other on both mean velocities and Reynolds shear stress.The self-similarity of standard and optimized RANS coefficient sets was then investigated.The optimized sets demonstrated improved self-similarity over the standard coefficient set, showing a close match with a   value of 2.2.

Source: Journal of Propulsion and Energy

DOI: 10.6108/jpne.2025.5.1.001

Authors: Youngik Song, Vlad Aparece-Scutariu, Dong-hyuk Shin

Institutions: Korea Advanced Institute of Science and Technology, Romanian Research and Development Institute for Gas Turbines

Language: English

Topic: Computational Fluid Dynamics and Aerodynamics

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: Korea Institute of Science and Technology, Korea Institute of Science and Technology Information, Korea Advanced Institute of Science and Technology

OpenAlex ID: W4411331816