Entropy-based detached-eddy simulation of the airwake over a simple frigate shape

Entropy-based detached-eddy simulation of the airwake over a simple frigate shape

The wind past the ship superstructure produces an unsteady turbulent airwake which has a significant effect on aircraft performance and consequently pilot workload during ship landing process. Computational fluid dynamics simulations of a generic simple frigate shape ship airwake have been performed...

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Bibliographic Details
Main Authors: Zhao Rui, Rong Ji-Li, Li Hai-Xu, Zhao Peng-Cheng
Format: Article
Language:English
Published: SAGE Publishing 2015-11-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814015616930
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spelling doaj-b7ff875644d942c0bdd40e6c3c6a491f2020-11-25T03:43:56ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402015-11-01710.1177/168781401561693010.1177_1687814015616930Entropy-based detached-eddy simulation of the airwake over a simple frigate shapeZhao Rui0Rong Ji-Li1Li Hai-Xu2Zhao Peng-Cheng3School of Aerospace Engineering, Beijing Institute of Technology, Beijing, ChinaSchool of Aerospace Engineering, Beijing Institute of Technology, Beijing, ChinaSystems Engineering Research Institute, Beijing, ChinaSystems Engineering Research Institute, Beijing, ChinaThe wind past the ship superstructure produces an unsteady turbulent airwake which has a significant effect on aircraft performance and consequently pilot workload during ship landing process. Computational fluid dynamics simulations of a generic simple frigate shape ship airwake have been performed using the entropy-based detached-eddy simulation method. The results were compared with the steady-state Reynolds-averaged Navier–Stokes calculations and the wind tunnel data, indicating the capability of entropy-based detached-eddy simulation to resolve the unsteady large-scale turbulent features. An analysis of the airwake flow topology at headwind condition highlights the vortex pairing process which dominates the flowfield above the deck. Additionally, the influence of hangar-door state (open, closed or half-open) on the airwake was also investigated in detail. Determination of this complex flow can assist in the definition of safe ship–helicopter operating limits and future ship design.https://doi.org/10.1177/1687814015616930
collection DOAJ
language English
format Article
sources DOAJ
author Zhao Rui
Rong Ji-Li
Li Hai-Xu
Zhao Peng-Cheng
spellingShingle Zhao Rui
Rong Ji-Li
Li Hai-Xu
Zhao Peng-Cheng
Entropy-based detached-eddy simulation of the airwake over a simple frigate shape
Advances in Mechanical Engineering
author_facet Zhao Rui
Rong Ji-Li
Li Hai-Xu
Zhao Peng-Cheng
author_sort Zhao Rui
title Entropy-based detached-eddy simulation of the airwake over a simple frigate shape
title_short Entropy-based detached-eddy simulation of the airwake over a simple frigate shape
title_full Entropy-based detached-eddy simulation of the airwake over a simple frigate shape
title_fullStr Entropy-based detached-eddy simulation of the airwake over a simple frigate shape
title_full_unstemmed Entropy-based detached-eddy simulation of the airwake over a simple frigate shape
title_sort entropy-based detached-eddy simulation of the airwake over a simple frigate shape
publisher SAGE Publishing
series Advances in Mechanical Engineering
issn 1687-8140
publishDate 2015-11-01
description The wind past the ship superstructure produces an unsteady turbulent airwake which has a significant effect on aircraft performance and consequently pilot workload during ship landing process. Computational fluid dynamics simulations of a generic simple frigate shape ship airwake have been performed using the entropy-based detached-eddy simulation method. The results were compared with the steady-state Reynolds-averaged Navier–Stokes calculations and the wind tunnel data, indicating the capability of entropy-based detached-eddy simulation to resolve the unsteady large-scale turbulent features. An analysis of the airwake flow topology at headwind condition highlights the vortex pairing process which dominates the flowfield above the deck. Additionally, the influence of hangar-door state (open, closed or half-open) on the airwake was also investigated in detail. Determination of this complex flow can assist in the definition of safe ship–helicopter operating limits and future ship design.
url https://doi.org/10.1177/1687814015616930
work_keys_str_mv AT zhaorui entropybaseddetachededdysimulationoftheairwakeoverasimplefrigateshape
AT rongjili entropybaseddetachededdysimulationoftheairwakeoverasimplefrigateshape
AT lihaixu entropybaseddetachededdysimulationoftheairwakeoverasimplefrigateshape
AT zhaopengcheng entropybaseddetachededdysimulationoftheairwakeoverasimplefrigateshape
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