Within linear approximation of the long-wave theory, the paper uses the hydrodynamic numerical model ADCIRC to study resonance properties of the water areas of the Sevastopol bays: Streletskaya, Kruglaya, Kamyshovaya, and Dvoynaya, which includes Kazachya and Solyonaya bays. The calculations were carried out for the water area of each bay separately based on numerical experiments. At the first stage of modelling, waves in the bays water areas were excited by setting red-noise disturbance at the liquid boundary at the bay entrance. At the second stage, free oscillations were calculated under condition of their free passage at the liquid boundary. The resonance periods of the above bays and spatial distribution of the spectral density of sea-level oscillations in their water areas for individual natural modes were determined using spectral analysis. Most of the resonance periods for the Sevastopol bays were in satisfactory agreement with analytical estimates. The use of realistic bathymetry and shoreline profile data in the modelling allowed obtaining additional resonance periods for all the considered bays, which cannot be obtained with analytical estimates. The spectral composition expansion of the resonance modes due to connection of these bays via their entrances was revealed in Dvoynaya Bay, which includes Kazachya and Solyonaya Bays. The spectral density spatial distribution of the main energy-carrying sea level oscillations in Streletskaya, Kruglaya, Kamyshovaya and Dvoynaya Bays was analysed to show that the spectral density peaked mainly in the bay tops. In Dvoynaya Bay, the spectral density maxima manifested in the eastern or western arms (Kazachya or Solyonaya Bays, respectively) depending on which of the arms their natural periods belonged to. The results obtained here can be used in layout designing of hydraulic structures, development of mariculture, planning of wastewater outlets, etc.
Article text not included.