Sweep wing#

The swept wing by Bertin [JJB09], is a flat plate with a \(45^\circ\) sweep angle. The span of wing is 1 unit and the chord is 0.2 unit. The model was discretised into 4 spanwise panels and 1 chordwise panel. The free stream is aligned with the x-axis and its magnitude is 1 unit.

Results#

Table 4 Comparison between swept wing by Bertin and pySailingVLM results. Calculated for \(AoA=2^\circ\)#

Bertin

pySailingVLM

\(C_{L,\alpha}\)

3.443

3.445
../../_images/bertin_1.png

Fig. 18 Lift coefficient versus angle of attack. Figure generated by pySailingVLM.#

In addition, the comparison of a spanwise lift distribution was obtained. Calculations were done for \(AoA=4.2^\circ\).

../../_images/bertin_2.png

Fig. 19 Comparison of spanwise lift distribution for the Bertin wing. Figure generated by pySailingVLM.#

Results obtained by pySailingVLM are aligned with formulas derived in [JJB09].