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- W2749051140 abstract "A theoretical analysis of the propagation characteristics of a finite amplitude pressure wave is presented. The analysis attempts to study the contribution of entropy-producing regions to the mechanism of aerodynamic noise generation. It results in a nonlinear convective wave equation in terms of entropy and a thermodynamic 'J' function. A direct analogy between the derived governing equation and those used in classical literature is obtained. An idealization of the processes considered permits the uncoupling of the equations of motion with a consequent construction of an acoustic analogy treating shock wave emission of finite amplitude acoustic waves. An engineering approach is reflected in the concept of an extended plug nozzle whose function is to facilitate aerodynamic noise attenuation by modifying the entropy-producing regions." @default.
- W2749051140 created "2017-08-31" @default.
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- W2749051140 date "1967-04-01" @default.
- W2749051140 modified "2023-09-27" @default.
- W2749051140 title "Investigation to define the propagation characteristics of a finite amplitude acoustic pressure wave" @default.
- W2749051140 hasPublicationYear "1967" @default.
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