REDUCTION OF SECTION DRAG BY BLOWIING THROUGH ROWS OF HOLES IN AREAS OF LAIMINAR SEPARATION BUBBLES
Keywords:Aerodynamics, Structures, Design
AbstractBelow Reynolds (Re) numbers of about 5 x 106, there may be laminar separation bubbles on wing sections and fuselages. The pressure distributions on the lower surface of a section is shown which involves laminar separation and reattachment. Also shown is a preliminary schematic of the flow conditions within a laminar separation bubble. Additionally, shown is a flow visualization sketch in the area of a separation bubble. Laminar separation bubbles are undesirable because they increase section drag through some not fully understood mechaniims.
CLEARANCE AND LICENSE TO PUBLISH:
This paper is UNCLASSIFIED (for public reasons) and has been cleared by the appropriate agencies, company and government. This paper represents original work by the author(s). No portion of the material is covered by a prior copyright; or for any portion copyrighted, the author has obtained permission for its use.
I hereby license OSTIV to publish this paper and to use it for all of OSTIV's current and future publications uses.