Excitation of Van Kampen-case waves

The response of a fluid with a shear flow having a slightly curved profile to an external vertical impact force, harmonic with respect to the horizontal coordinate and concentrated in a narrow layer, is calculated. The cases of an ideal and a viscous fluid are considered.Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 1, pp. 115–119, January–February, 1987.The author wishes to thank G. I. Barenblatt, M. A. Mironov, and S. A. Rybak for useful discussions.