Machine learning approach for flow fields over a circular cylinder based on particle image velocimetry measurements

MH Aksoy, I Goktepeli, M Ispir, A Cakan - Measurement, 2023 - Elsevier
Flow around a circular cylinder has been experimentally studied at Reynolds numbers of
Re= 4× 10 3 and Re= 8× 10 3 using Particle Image Velocimetry (PIV). The Artificial Neural …

[HTML][HTML] Implicit rule for the application of the 2-parameters RANS turbulence models to solve flow problems around wind turbine rotor profiles

OO Ajayi, L Unser, JO Ojo - Cleaner Engineering and Technology, 2023 - Elsevier
Appropriate wind farm layout design depends on the accurate prediction of flow
characteristics around turbine's rotor, especially as it affects downstream turbines. The …

Improvement of turbulent flow in a bend using rotational guide vane: A shape optimization

S Yagmur, MS Gumus, S Dogan, M Kalyoncu - Physics of Fluids, 2023 - pubs.aip.org
The present study aims to minimize velocity disruption using rotational guide vane (RGV)
before the 90 pipe bend where the curvature ratio is r/D= 1.0 at Re= 3× 10 4. The …

A study on performance and flow characteristics of single and double H-type Darrieus turbine for a hydro farm application

S Yagmur, F Kose, S Dogan - Energy Conversion and Management, 2021 - Elsevier
The wake of a turbine has a significant effect on the performance of downstream turbine for a
hydro farm application's energy conversion in a channel flow. The performance and wake …

Numerical evolution of unsteady wake characteristics of H-type Darrieus Hydrokinetic Turbine for a hydro farm arrangement

S Yagmur, F Kose - Applied Ocean Research, 2021 - Elsevier
In this study, the CFD method is carried out in the wake region of an H-type Darrieus
hydrokinetic turbine. The hydrodynamic investigation was examined with symmetric and non …

Large-eddy simulation of a full-scale underwater energy storage accumulator

Z Wang, J Wang, H Cen, DSK Ting, R Carriveau… - Ocean …, 2021 - Elsevier
Underwater energy storage provides an alternative to conventional underground, tank, and
floating storage. This study presents an underwater energy storage accumulator concept …

Flow characteristics and passive flow control of circular cylinders with triangular vortex generators: An experimental investigation

MH Aksoy - Applied Ocean Research, 2024 - Elsevier
Optimizing flow patterns around cylinders is crucial for diverse engineering applications,
aiming to mitigate vibrations induced by vortex shedding and minimize drag. Strategies …

The groove effect on wake characteristics of rotating cylinders

S Yagmur, MH Aksoy, S Dogan, I Goktepeli, M Ispir - Physics of Fluids, 2024 - pubs.aip.org
In the present study, active and passive flow control methods have been implemented to
investigate their effects on the wake flow structures of a circular cylinder. Grooves having …

Reconstruction of flow field with missing experimental data of a circular cylinder via machine learning algorithm

MH Aksoy, I Goktepeli, M Ispir, A Cakan - Physics of Fluids, 2023 - pubs.aip.org
In this study, artificial neural networks (ANNs) have been implemented to recover missing
data from the particle image velocimetry (PIV), providing quantitative measurements of …

Numerical study on the effect of braking plates on flow structure and vehicle and enhanced braking of vehicles inside and outside tunnels

J Niu, Y Wang, Z Chen, F Liu - Journal of Wind Engineering and Industrial …, 2021 - Elsevier
With the continuous improvement of train speeds, aerodynamic braking is a good choice to
effectively reduce the braking distance. In this study, unsteady aerodynamic characteristics …