The radiation pressure on a complex-shaped inclusion in an ideal liquid in the primary field of an arbitrary configuration is calculated. The solution is sought in terms of the scattering problem in the linear approximation. For the components of radiation pressure in an arbitrary primary field, expressions involving the resulting scattering amplitude are presented. The expressions are simplified for a number of particular cases. The results of the study can be used for inclusions with complicated scattering amplitudes, and the derived expressions considerably extend the ranges of fields and scatterers for which the radiation pressure can be calculated. An example of calculation is presented.
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