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Доповіді НАН України. – 2007. – N 9. – С. 47–53.
Про використання моделей пульсацій тиску на плоскій стінці для опису пульсацій тиску на поверхнях циліндричних конструкцій
А.О. Борисюк
Abstract
Conditions are searched, under which the available models of pressure
fluctuations on a flat wall (i.e., the models of Crocos, Chase, F. Williams,
and Smol'yakov and Tkachenko) can be used to describe the pressure
fluctuation field which arises on the surfaces of cylindrical structures
under their interaction with fully developed turbulent flows of
incompressible fluids. For this purpose, the appropriate method and
experimental equipment are developed. As a result, it is found that, in case
of the axial symmetry of a flow, the acceptable-for-practice results of
calculations of the vibration and/or acoustic fields of cylindrical
structures can be obtained in the frames of the Chase model. This allows one
to recommend the use of the model for description of the pressure field
noted above. In case of a non-axisymmetric flow, the application of all the
models of pressure fluctuations on a flat wall is unreasonable.
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