[an error occurred while processing this directive]
   
 
���¿��ټ��� �߼�����
   ��ҳ  �ڿ�����  ��ί��  Ͷ��ָ��  �ڿ�����  ��������  �� �� ��  ��ϵ����
�������պ����ѧѧ�� 2012, Vol. 38 Issue (5) :654-658    DOI:
���� ����Ŀ¼ | ����Ŀ¼ | ������� | �߼����� << | >>
ֱ��������������ֵģ����β����Ʒ���
��, ���廪, ���Ҵ�*
�������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100191
Numerical simulation of helicopter slung-load flow field and fins design
Ma Chao, Cao Yihua, Xu Zhongda*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

ժҪ
�����
�������
Download: PDF (502KB)   HTML KB   Export: BibTeX or EndNote (RIS)      Supporting Info
ժҪ ������֪��ֱ�������ҵļ��γߴ�,����CAD������������ֵ��ҵ���άģ��.����ͼ����ķ����Ե�1�ֵ���β�������˳������,ͨ������������ѧ(CFD,Computational Fluid Dynamics)�����Դ�β���ĵ���ģ�ͽ����˼��������,�����������������ۼ������ǺϽϺ�.����,�Ե�2��UH-60��ӥֱ������β�����ҽ�����CFD����,������β���Ե���������Ӱ��.ͨ�������ִ�β����ֱ������������ļ������,֤����β���Ա�֤�����ڷ��й����еĺ����ȶ��Ծ��йؼ�������,���������һ�ֻ����޿��������������ֱ��������β���ߴ����Ʒ���,���Ե�2�ֵ���״̬�µ�β���ߴ�����˼������.�������õ���β������Ժ����ȶ��Ե�Ӱ���������綴ʵ��������һ��.
Service
�ѱ����Ƽ�������
�����ҵ����
�������ù�����
Email Alert
RSS
�����������
��
���廪
���Ҵ�
�ؼ����� ֱ����   ����   ����������ѧ   β��   �����ȶ���     
Abstract�� Tow 3D slung-load models of helicopter were built by the CAD software according to the known geometry data. Fins of the first slung-load were designed with the method of mapping pictures. Through methods of computational fluid dynamics(CFD), the slung-load with fins was calculated and analyzed, and the result of aerodynamic resistance between CFD methods and theory methods had good agreement. Moreover, the second slung-load with fins of UH-60 Black Hawk helicopter was calculated through CFD methods, and the flow field interaction between fins and slung-load was investigated. By the calculation of two cases, fins were proved for ensuring the directional stability of slung-load crucially in flight. Then a design method of slung-load fins based on hypothesis of ignoring air damping force was presented, and the second slung-load fins were designed through the method. The impacts of fins on the directional stability of slung-load were consistent with the wind tunnel tests.
Keywords�� helicopter   slung-load   computational fluid dynamics(CFD)   fin   directional stability     
Received 2011-01-17;
Fund:����863�ƻ��ش�������Ŀ(2006AA06A205)
���ñ���:   
��, ���廪, ���Ҵ�.ֱ��������������ֵģ����β����Ʒ���[J]  �������պ����ѧѧ��, 2012,V38(5): 654-658
Ma Chao, Cao Yihua, Xu Zhongda.Numerical simulation of helicopter slung-load flow field and fins design[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(5): 654-658
���ӱ���:  
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2012/V38/I5/654
Copyright 2010 by �������պ����ѧѧ��