Downwash Investigation of Horizontal Tail Plane Configuration for 19-Passenger Aircraft Based on a Wind Tunnel Test
DOI:
https://doi.org/10.4186/ej.2024.28.12.29Keywords:
wind tunnel, flap deflection, downwash, Horizontal Tail Plane (HTP)Abstract
An investigation has been conducted on wind tunnel test data of 19-passenger aircraft to see the phenomena of the downwash effect. The objective of this investigation is to analyze the downwash effect on the variation of horizontal tailplane configuration that is installed on the vertical tailplane of the aircraft and on the variation of flap configuration. Each flap configuration represents the condition at the flight profile of cruise, takeoff, and landing. The horizontal tailplane configuration is varied by changing the angle of incidence and the vertical position on the vertical tailplane. Analytic calculation was conducted on wind tunnel result data to quantify the downwash effect. A computational fluid dynamic simulation is performed to obtain the visualization of the downwash effect and for wind tunnel data verification. From the investigation, it is found that the lower position of the horizontal tail has a smaller amount of downwash than other positions. The flap configurations have greatly affected the perceived amount of downwash. The greater deflection of the flap generated downwash even more.
Downloads
Downloads
Authors who publish with Engineering Journal agree to transfer all copyright rights in and to the above work to the Engineering Journal (EJ)'s Editorial Board so that EJ's Editorial Board shall have the right to publish the work for nonprofit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors' personal use or for company use if the source and EJ's copyright notice is indicated, and if the reproduction is not made for the purpose of sale.
