Momentum due to pressure: A simple model

Autor:	Kannan Jagannathan
Rok vydání:	2009
Předmět:	Momentum Physics Minimal model Classical mechanics Dynamics (mechanics) Fluid dynamics General Physics and Astronomy Fluid mechanics Mechanics Maxwell stress tensor Special relativity Term (time)
Zdroj:	American Journal of Physics. 77:432-433
ISSN:	1943-2909 0002-9505
DOI:	10.1119/1.3081105
Popis:	In relativistic fluid dynamics the momentum density of a fluid element consists of two terms—one that depends on the proper density and velocity of the element and another that depends on its proper pressure and velocity. The usual way in which this result is displayed as a second rank tensor does not yield much insight into the origin of the pressure term and is not likely to be of pedagogical value in most undergraduate physics courses. I present a minimal model that offers some insight into the origin of the pressure term in the momentum density.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::31f5b308bc89876b4769ebabf1034ef6 https://doi.org/10.1119/1.3081105 Zobrazit plný text záznamu