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Experimental investigation of a new device to control the asymmetric flowfield on forebodies at large angles of attack

Publication ,  Conference
Moskovitz, CA; Hall, RM; Dcjarncttct, FR
Published in: 28th Aerospace Sciences Meeting, 1990
January 1, 1990

An exploratory experimental investigation of a new device to control the asymmetric flowfield on forebodies at large angles of attack has been conducted. The device is a rotatable forebody tip, which varies in cross section from circular at its base to elliptic at its tip. The device itself extends over a small portion of the aircraft or missile forebody. The device provides two important improvements. First, it replaced the normally random behavior of the nose side force as a function of nose tip orientation with a predictable and generally sinusoidal distribution and, second, the device showed promise for use as pat of a vehicle control system, to be deflected in a prescribed manner to provide additional directional conuol for the vehicle. The device was tested on a cone/cylinder model having a 10 deg semi-apex angle and on a 3.0 caliber tangent ogive model, each with a base diameter of 3.5 in, for angles of attack from 30 to 60 deg. Data were taken from 3 circumferential rows of pressure taps on each model at a Reynolds number of 84,000 based on cylinder diameter and by a helium-bubble flow visualization technique at a Reynolds number of 24,000.

Duke Scholars

Published In

28th Aerospace Sciences Meeting, 1990

DOI

Publication Date

January 1, 1990
 

Citation

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Moskovitz, C. A., Hall, R. M., & Dcjarncttct, F. R. (1990). Experimental investigation of a new device to control the asymmetric flowfield on forebodies at large angles of attack. In 28th Aerospace Sciences Meeting, 1990. https://doi.org/10.2514/6.1990-69
Moskovitz, C. A., R. M. Hall, and F. R. Dcjarncttct. “Experimental investigation of a new device to control the asymmetric flowfield on forebodies at large angles of attack.” In 28th Aerospace Sciences Meeting, 1990, 1990. https://doi.org/10.2514/6.1990-69.
Moskovitz CA, Hall RM, Dcjarncttct FR. Experimental investigation of a new device to control the asymmetric flowfield on forebodies at large angles of attack. In: 28th Aerospace Sciences Meeting, 1990. 1990.
Moskovitz, C. A., et al. “Experimental investigation of a new device to control the asymmetric flowfield on forebodies at large angles of attack.” 28th Aerospace Sciences Meeting, 1990, 1990. Scopus, doi:10.2514/6.1990-69.
Moskovitz CA, Hall RM, Dcjarncttct FR. Experimental investigation of a new device to control the asymmetric flowfield on forebodies at large angles of attack. 28th Aerospace Sciences Meeting, 1990. 1990.

Published In

28th Aerospace Sciences Meeting, 1990

DOI

Publication Date

January 1, 1990