Work

The Effect of Turbulent Intensity on Friction Coefficient in Boundary-Layer Transitional Flat Plate Flow

Year: 2025

Type: article

Abstract: In this study, effect of inlet turbulence intensity on the friction coefficient for transitional boundary layer has been investigated computationally. For this purpose, two equation turbulence models of Std. k-ε, RNG k-ε, Std. k-ω ve SST k-ω have been compared with Gamma-Theta (GT) transitional model, and it has been found that Gamma Theta model is the most consistent model with the experimental values of the ERCOFTAC T3A test case. Then, the effect of inlet turbulence intensity on the friction coefficient has been computed by using this Gamma-Theta model. Transition from laminar to turbulence is shortened with increasing turbulence intensity by changing it from 0.01 to 0.1. The most suitable inlet turbulence intensity value with the experimental results of ERCOFTAC T3A test case is found as Tu=0.033.

Source: Applied Sciences

DOI: 10.3390/app15115852

Authors: Muhsine Saru, Hıfzı Arda Erşan, Erhan Pulat

Institution: Bursa Uludağ Üni̇versi̇tesi̇

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: Yükseköğretim Kurulu