TY - DATA T1 - Spreading of vorticity and increased span efficiency from Multi-cored vortices support function of slotted wing tips of birds in gliding and flapping flight PY - 2017/05/08 AU - Marco KleinHeerenbrink AU - L. Christoffer Johansson AU - Anders Hedenström UR - https://rs.figshare.com/articles/journal_contribution/Spreading_of_vorticity_and_increased_span_efficiency_from_Multi-cored_vortices_support_function_of_slotted_wing_tips_of_birds_in_gliding_and_flapping_flight/4982672 DO - 10.6084/m9.figshare.4982672.v1 L4 - https://ndownloader.figshare.com/files/8387588 KW - animal flight KW - slotted wing tips KW - separated outer primary feathers KW - flight efficiency KW - jackdaw Corvus monedula KW - wind tunnel N2 - Explanation of the relation between spreading of vorticity and induced drag reduction and a short clarification on the high span efficiency observed in quantitative data on gliding flight. ER -