The problem of wave momentum, radiation pressure and other quantities in the case of plane motions of an ideal gas

✍ Scribed by G.G. Denisov

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 770 KB
• Volume: 63
• Category: Article
• ISSN: 0021-8928
• DOI: 10.1016/s0021-8928(99)00049-0

✦ Synopsis

Small vibrations and waves of an ideal fluid gas (a liquid or gas) are considered in the quadratic approximation. Actual values of the momentum density and the pressure and also their averaged values are obtained in a number of specific characteristic problems. It is shown that the momentum of an isolated wave with a mean density equal to the density of the unperturbed medium, and the radiation pressure are due to non-linearity of the system of equations, and that this wave has no momentum if its profile remains unchanged during its motion. The latter assertion is also true for finite-amplitude waves.