SUPERSONIC FLOW AROUND A WEDGE WITHOUT INCIDENCE
This hydraulic analogy was obtained in a horizontal channel with a flat transparent bottom. This configuration allows the
observation of a pattern of colored stripes placed under the channel and whose image, deformed by the waves appearing on the
water surface around the model, reveal the features of the flow, such as the shock and expansion waves attached to the
Image created by Henri Werlé. Reproduced with permission from his spectacular
collection Courants et Couleurs published in 1974 by ONERA, the French Aerospace Lab.
For further information, see
On the Flow of Fluids Made Visible,
Leonardo, Vol. 8, No. 4. (Autumn, 1975), pp. 329-331.