Velocity and Absorption Coefficient of Sound Waves in Classical Gases
نویسندگان
چکیده
منابع مشابه
Design and Compare Sound Absorption Coefficient Nanocomposites Containing Tea Waste and Polypropylene With and Without Nanoclay
Introduction: In recent years tend to use of natural fibers has increased in making sound absorbers. Fiber-based natural materials have low density, low production costs, and are biodegradable. Material and Methods: In this study, the effect of nanoclay and the behavior of the nanocomposite specimens containing tea waste, polypropylene, and nanoclay in the sound absorption coefficient are inve...
متن کاملAn alternative coefficient for sound absorption
The acoustic absorption coefficient is a number that indicates which fraction of the incident acoustic power impinging on a surface is being absorbed. The incident acoustic power is obtained by spatial integration of the incident intensity, which is (classically) defined as the time-averaged intensity associated with the incident sound field. The measurement of the effective, in situ, sound abs...
متن کاملTransmission of Sound Waves in Gases at Low Pressures
Midway through World War II it became apparent that a better understanding of the motion and interaction of gaseous media with solid objects was needed. As aircraft flew at higher altitudes, approaching the speed of sound, strange shock wave effects interrupted normal flight. Propulsion mechanisms became challenged by the rapid increases in frictional drag. At the same time, the fledgling nucle...
متن کاملGranular Gases with Impact-velocity Dependent Restitution Coefficient
We consider collisional models for granular particles and analyze the conditions under which the restitution coefficient might be a constant. We show that these conditions are not consistent with known collision laws. From the generalization of the Hertz contact law for viscoelastic particles we obtain the coefficient of normal restitution ǫ as a function of the normal component of the impact v...
متن کاملA framework for characterizing sound field diffusion based on scattering coefficient and absorption coefficient of walls
This paper describes the development of a theoretical framework for quantitatively characterizing sound field diffusion based on scattering coefficient and absorption coefficient of walls. The concepts of equivalent scattering area, equivalent scatter reflection area, average scattering coefficient and average scatter reflection coefficient are introduced in order to express all walls' capabili...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ukrainian Journal of Physics
سال: 2020
ISSN: 2071-0194,2071-0186
DOI: 10.15407/ujpe65.3.217