Space-time characterization of ship airwakes

N Zhu, Z Zhang, E Gnanamanickam… - AIAA Journal, 2023 - arc.aiaa.org
The turbulent airwakes produced by a generic navy frigate (Simple Frigate Ship 2) was
investigated in a low-speed wind tunnel. The frigate model was subjected to a headwind …

Influence of inflow conditions on simplified heavy vehicle wake

S Han, F Wang, J Zhang - Physics of Fluids, 2024 - pubs.aip.org
In the current study, the impact of various inflow conditions, including turbulent wind profiles
and turbulent intensity, on the wake flow topology of a simplified ground transportation …

Dynamics of large-scale flow structures within ship airwakes

N Zhu, Z Zhang, E Gnanamanickam… - AIAA Scitech 2022 …, 2022 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2022-2532. vid The three-dimensional,
unsteady, and turbulent airwake produced by a scaled model of a generic Navy ship (Simple …

Estimation of 3D ship airwakes using dual-plane PIV

N Zhu, Z Zhang, EP Gnanamanickam… - Experiments in Fluids, 2024 - Springer
A high-speed, dual-plane, stereoscopic particle image velocimetry technique was
complemented by a flow estimation method to construct three-dimensional Simple Frigate …

Assessment of URANS, SAS, and IDDES on the bi-stable wake flow of a generic ship

J Zhang, F Gidado, A Adamu, K He, S Krajnović… - Ocean …, 2023 - Elsevier
The present study aims to assess the prediction ability of URANS (unsteady Reynolds-
averaged Navier-Stokes), SAS (scale-adaptive simulation), and IDDES (improved delayed …

[HTML][HTML] Large eddy simulation of ship airflow control with steady Coanda effect

K Xu, X Su, R Bensow, S Krajnovic - Physics of Fluids, 2023 - pubs.aip.org
This paper numerically studies the steady Coanda effect for drag reduction and airwake
manipulations on the Chalmers ship model (CSM) using large eddy simulation with wall …

[HTML][HTML] Drag reduction of ship airflow using steady Coanda effect

K Xu, X Su, R Bensow, S Krajnovic - Ocean Engineering, 2022 - Elsevier
This paper studies the steady Coanda effect for reducing the aerodynamic drag of the
Chalmers ship model (CSM) using Large Eddy Simulation (LES) with Wall-Adapting Local …

An investigation on the switching of asymmetric wake flow and the bi-stable flow states of a simplified heavy vehicle

J Zhang, F Wang, S Han, T Huang, G Gao… - … of Computational Fluid …, 2022 - Taylor & Francis
This study investigates the effect of aspect ratios (Ra*) on the wake bi-stability behind the
GTS model using improved delayed-detached eddy simulation (IDDES) at a Reynolds …

Simulation of SFS2 using embedded LES: part-II understanding the asymmetry in bistable airwake at zero yaw

SQ Zaheer, PJ Disimile - Ocean Engineering, 2023 - Elsevier
The turbulent flow field of simplified frigate model SFS2 is numerically studied using an
embedded Large Eddy Simulation (ELES) turbulence model in Ansys Fluent® 19.0 …

An investigation on the wake flow of a generic ship using IDDES: The effect of computational parameters

J Zhang, F Gidado, A Adamu, Z Guo, G Gao - Ocean Engineering, 2023 - Elsevier
The study of the ship airwake is critical as it explores the effect of unsteady wake flow on
helicopter operations. This paper studied the near-wake flow topology of a generic ship at …