E X P E R I M E N T A L I N V E S T I G A T I O N O F T H E E F F E C T S O F W I N G A S P E C T R A T I O A N D I T S D I S T A N C E F R O M T H E T A I L O N T H E A E R O D Y N A M I C P A R A M E T E R S O F A P R O J E C T I L E A T H I G H A.O.A
Author(s):
Abstract:
In recent years, requirement to increase projectile performance has led to a great interest in high angle of attack aerodynamics. Projectile maneuverability is a concept which is defined by having the capability to perform at high angles of attack while maintaining attached flow over the tail, rather than the capability of performing a mission in minimum possible time. Interactions between body, wing and tail vortices can delay vortex breakdown over the wing and, as a result may, enhance projectile maneuverability. Studies showed that wing aspect ratio and tail location have a remarkable influence on the vortices, and their interactions, hence, on projectile maneuverability. In the present study, a series of experiments are carried out on a body-wing-tail configuration to investigate their interferences. A projectile model was designed with the capabilities of placing a horizontal tail at various locations and installing wings with different aspect ratios. A six-component balance was used to measure aerodynamic forces and moments. Flow visualization was performed to gain insight into the corresponding flow field. Results show that reducing wing and tail distances, increases lift and decreases drag at high angles of attack.
Keywords:
Language:
Persian
Published:
Mechanical Engineering Sharif, Volume:27 Issue: 1, 2011
Page:
35
magiran.com/p909759
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!