Validation Experiment on a Passive Suction Flap for Hybrid Laminar Flow Control Applications

Kilian, Thomas; Krause, Udo; Schaber, Sven; Neufeld, Dimitri

doi:10.1007/978-3-030-25253-3_19

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Redesigned Passive Suction Flap1

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2021

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“…In the scope of the project AFLoNext, a more advanced flap placed near the leading edge underneath the suction panel has been designed [17] and flight tested [6]. Although this flap is designed for high subsonic Mach numbers, the general principle of operation does not change to low speed, only the flaps efficiency increases [18]. The same flap geometry was, therefore, also integrated into the VER 2 SUS VTP model.…”

Section: Redesigned Passive Suction Flapmentioning

confidence: 99%

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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: Redesigned Passive Suction Flapmentioning

confidence: 99%

“…Fig 18. Boundary layer state (laminar/turbulent) visualization with and without HLFC operation comparing the chamberless ("VarPoHyL") to the ALTTA ("VER 2 SUS") concept.…”

mentioning

confidence: 99%

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

Kilian

Horn

2021

CEAS Aeronaut J

View full text Add to dashboard Cite

show abstract

Validation Experiment on a Passive Suction Flap for Hybrid Laminar Flow Control Applications

Cited by 1 publication

References 1 publication

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

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

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