Aerodynamic and Transition Analysis of the Hybrid Laminar Flow ControlWing at ARA Wind Tunnel

Ciarella, Andrea; Lawson, Sally N.; Wong, P. W. C.; Mughal, Shahid

doi:10.2514/6.2019-3598

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2021

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“…In the scope of a UK nationally funded research project ARA has also recently wind-tunnel tested a small-scale HLFC wing with a suction skin of variable porosity. While the HLFC design concept and scientific goals were somewhat different here, the documented observations in [7] confirm the beneficial application of variable against constant porosity for HLFC suction skins.…”

Section: Introductionmentioning

confidence: 57%

Verification of a chamberless HLFC design with an outer skin of variable porosity

Kilian

Horn

2021

CEAS Aeronaut J

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A chamberless HLFC leading edge segment featuring an outer skin with variable porosity has been designed, manufactured and wind tunnel tested under flight Reynolds-number conditions. The aerodynamic design involved the extention of current HLFC design routines to variable pressure loss characteristics of the outer skin. Advanced options for structural design and manufacturing solutions with focus on industrialization, arising from the avoidance of aerodynamically driven chambering, are explored. The leading edge segment has been installed on an existing vertical tail-plane model and tested at the large low-speed wind-tunnel facility DNW-LLF. The design process and some results of the successful verification of the chamberless design are presented herein.

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Section: Introductionmentioning

confidence: 57%