Surface pressures induced on a flat plate with in-line and side-by-side dual jet configurationsA jet in a crossflow is of interest in numerous practical situations including jet-powered VTOL aircraft. Two aspects of the problem have received little prior study. First is the effect of the angle of the jet to the crossflow. Second is the performance of dual-jet configurations both in-line and side-by-side. The test plan for this work was designed to address these two aspects. The experiments were conducted in the 7 x 10 tunnel at NASA Ames at velocities from 14.5 - 35.8 m/sec (47.6 - 117.4 ft/sec.). Detailed pressure distributions are presented for single and dual jets over a range of velocity ratios from 3 to 8, spacings from 2 to 6 diameters and injection angles of 90, 75, and 105 degrees. The effects of the various parameters and the differences between the axisymmetric and flat plate geometries on the nature, size, shape, and strength of the interaction regions on the body surfaces are shown.
Document ID
19830057459
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schetz, J. A. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Jakubowski, A. K. (Virginia Polytechnic Institute and State University Blacksburg, VA, United States)
Aoyagi, K. (NASA Ames Research Center Moffett Field, CA, United States)