On free boundaries of an ideal fluid. II
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Max Shiffman
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Article
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1949
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John Wiley and Sons
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English
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By M A X SHIFFMAN ## 1. Geometrical Interpretation of the Force We shall consider the force on an'obstacle due to the formation of a cavity behind it. The principle of reflection across free boundaries leads to a geometrical interpretation of the force and of the drag coefficient. Besides its intr