A Research on Rotor/Ship Wake Characteristics under Atmospheric Boundary Layer Conditions-Reference-Cited by-同舟云学术

A Research on Rotor/Ship Wake Characteristics under Atmospheric Boundary Layer Conditions

Published:2023-09-18 Issue:9 Volume:10 Page:816
ISSN:2226-4310
Container-title:Aerospace
language:en
Short-container-title:Aerospace

Author:

Li Guoqiang¹²,Wang Qing³^ORCID,Zhao Qijun⁴,Zhao Guoqing⁴,Feng Fei⁵,Wu Linxin²

Affiliation:

1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

2. Low Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China

3. School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China

4. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

5. China Academy of Launch Vehicle Technology, Beijing 100076, China

Abstract

The environment for the shipboard landing and takeoff of helicopters is extremely complex and significantly affects their safe flight. To address the intricate characteristics of the flow field during these operations, a simulation method suitable for rotor/ship wake vortex interaction is developed. This method couples the Delayed Detached Eddy Simulation (DDES) method and the momentum source method. The simulation of flow field characteristics of the SFS2 ship model under different conditions reveals that, in a rotor/ship coupling scenario, the inflow velocity in the wake zone of the flight deck is distributed in a “W” shape due to the influence of the rotor blade tip vortex. Under wind shear conditions, the rotor’s influence on the wake is reduced, resulting in smaller velocity fluctuations compared to uniform inflow conditions. Moreover, the detached eddy is suppressed to some extent. It can be concluded that shear flow mitigates the unsteady characteristics of the ship’s wake zone to some extent, which is beneficial to helicopter operations during takeoff and landing.

Funder

China aerodynamics research and development center

Publisher

MDPI AG

Subject

Aerospace Engineering

Link

https://www.mdpi.com/2226-4310/10/9/816/pdf

Reference25 articles.

1. Numerical Study of Helicopter Rotors in a Ship Airwake;Crozon;J. Aircr.,2014

2. Experimental investigation on flow field properties around aft-deck of destroyer;Gu;Acta Aeronaut. Astronaut. Sin.,2001

3. Polsky, S.A., and Bruner, C.W.S. (2000, January 14–17). Time-Accurate Computational Simulations of an LHA Ship Airwake. Proceedings of the 18th Applied Aerodynamics Conference, Denver, CO, USA.

4. Polsky, S.A. (2002, January 14–17). A Computational Study of Unsteady Ship Airwake. Proceedings of the 40th AIAA Aerospace Sciences Meeting & Exhibit, Reno, NV, USA.

5. Bunnell, J.B. (2001, January 6–9). An Integrated Time-varying Airwake in A UH-60 Black Hawk Shipboard Landing Simulation. Proceedings of the AIAA Modeling and Simulation Technologies Conference and Exhibit, Montreal, QC, Canada.