Dudzinsky Y. Acoustic properties of stream hydrodynamic radiators in the conditions of developed cavitations

The jet hydrodynamic radiators of direct-flow and counter-flow type. Acoustic properties of jet hydrodynamic radiators in the conditions of developed cavitations and mechanism of sound generation can be find.The methods of researches are experiments with the use of calibrate measuring apparatus, visualization of the explored processes by a photo and speed video survey, physical and mathematical modelling of processes of vibrations of the jet stream shell, decision of regional tasks of equalization of Gelmgoltz and systems of vibrations of shell on the basis of hypotheses of Kirkhgof – Lyav. The dependences of acoustic characteristics of hydrodynamic radiators on the geometrica and hydrodynamicl parameters jet shell. The dependences of acoustic characteristics of hydrodynamic radiators on the geometrica and hydrodynamicl parameters jet shell are seted. The analitic formuls for calculations of amplitude-frequency characteristics that sound sources and spectrum of generated sony are seted.The jet hydrodynamic radiators of direct-flow and counter-flow type. Acoustic properties of jet hydrodynamic radiators in the conditions of developed cavitations and mechanism of sound generation can be find.The methods of researches are experiments with the use of calibrate measuring apparatus, visualization of the explored processes by a photo and speed video survey, physical and mathematical modelling of processes of vibrations of the jet stream shell, decision of regional tasks of equalization of Gelmgoltz and systems of vibrations of shell on the basis of hypotheses of Kirkhgof – Lyav. The dependences of acoustic characteristics of hydrodynamic radiators on the geometrica and hydrodynamicl parameters jet shell. The dependences of acoustic characteristics of hydrodynamic radiators on the geometrica and hydrodynamicl parameters jet shell are seted. The analitic formuls for calculations of amplitude-frequency characteristics that sound sources and spectrum of generated sony are seted.The aplication is sound and uitrasound tecnologys.