WING TIP VORTEX RANS AND LES SIMULATION AND MEASUREMENT OF THE MEAN CHARACTERISTICS
Abstract eng: 𝐿𝐸𝑆, 𝑅𝐴𝑁𝑆 𝑆𝑆𝑇 𝑘 − 𝜔 𝑎𝑛𝑑 𝑢𝑅𝐴𝑁𝑆 − 𝑅𝑆𝑇 simulation of mean wing tip vortex characteristics at x/c = 6 position were compared to experiments. The wing tip vortex was generated by a wing at 𝐴𝑜𝐴 = 10 𝑑𝑒𝑔, 𝑈∞ = 34 𝑚 ⋅ 𝑠 −1 , 𝑅𝑒 = 3.22 × 105 . Star CCM+ CFD solver and a wind tunnel with a five hole probe located at University of Limerick were used. The study is an extension of Dr. O’Regan and Dr. Griffin research, O'Regan et al. (2014). Good results in the mean characteristics were achieved only by LES simulation. RANS simulation predicted faster dissipation of a tip vortex and didn’t capture a jet-like axial velocity in a vortex core position. High differences in the turbulent characteristics were observed for various turbulent models.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Praha
Conference Title:
Conference Title:
Engineering Mechanics 2016
Conference Venue:
Svratka, CZ
Conference Dates:
2016-05-09 / 2016-05-12
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-08-16, last modified 2016-08-16
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