Turbulent flow around a wing profile, a direct numerical simulation
Turbulent flow around a wing profile, a direct numerical simulation
Mohammad Hosseini, KTH Mechanics, Stockholm, Sweden
Ricardo Vinuesa, KTH Mechanics, Stockholm, Sweden
Ardeshir Hanifi, KTH Mechanics, Stockholm, Sweden
Dan Henningson, KTH Mechanics, Stockholm, Sweden
Philipp Schlatter, KTH Mechanics, Stockholm, Sweden
DOI:
A three dimensional direct numerical simulation using high-order methods has been performed to study the flow around the asymmetric NACA-4412 wing at a moderate chord Reynolds number (Rec = 400, 000), with an angle of attack of 5 degrees. This flow regime corresponds approximately to the flow around a small glider. In addition to providing higly accurate data, high-order methods produce massive amount of data enabling proper flow visualization. For instance, in this study vortical structures emerging from tripping the flow to turbulence are visualized using the \(\lambda_2\)criterion. It is interesting to see how interaction of such vorti
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