V.V.Serebryakov A drag of axisymmetric cavitators at low cavitation numbers |
Applied hydromechanics, Vol. 16 (88) ¹ 4, (2014) |
| The paper deals with considering of peculiarities of formation of drag coefficients for axisymmetric cavitators at low cavitation numbers. The special attention was paid to improving of the dependences for calculation of elongated cavitators within the frameworks of the model of ideal incompressible liquid. The influence of the cavitator's shape, cavitation number and viscosity on the drag is investigated in detail. On the base of the asymptotic relations and known numeral solutions, the universal asymptotic approximations are developed for calculation of drag coefficients for cavitators of different shapes, including the cones with semi-angles of (0…90)° and cavitation numbers of (0…0.2). |
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KEY WORDS: an axisymmetric cavitator, drag coefficient, cavitation number, the approximation dependency |
| TEXT LANGUAGE: Russian |