- viscous stresses
- критерии вязкости
English-Russian aviation meteorology dictionary. 2013.
viscous stresses
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Reynolds stresses — In fluid dynamics, the Reynolds stresses (or, the Reynolds stress tensor) is the stress tensor in a fluid due to the random turbulent fluctuations in fluid momentum. The stress is obtained from an average (typically in some loosely defined… … Wikipedia
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Reynolds-averaged Navier–Stokes equations — The Reynolds averaged Navier–Stokes (RANS) equations are time averaged [The true time average ( ar{X} ) of a variable ( x ) is defined by: ar{X} = lim {T o infty}frac{1}{T}int {t 0}^{t 0+T} x, dt. For this to be a well defined term, the limit ( … Wikipedia
laminar fluid — an organized flow field that can be described with streamlines. In order for laminar flow to be permissible, the viscous stresses must dominate over the fluid inertia stresses … Mechanics glossary
turbulent fluid — a flow field that cannot be described with streamlines in the absolute sense. However, time averaged streamlines can be defined to describe the average behavior of the flow. In turbulent flow, the inertia stresses dominate over the viscous… … Mechanics glossary
Transport phenomena — In physics, chemistry, biology and engineering, a transport phenomenon is any of various mechanisms by which particles or quantities move from one place to another. The laws which govern transport connect a flux with a motive force . Three common … Wikipedia
Test particle — In physical theories, a test particle is an idealized model of an object whose physical properties (usually mass, charge, or size) are assumed to be negligible except for the property being studied, which is considered to be insufficient to alter … Wikipedia
Kelvin's circulation theorem — In fluid mechanics, Kelvin s Circulation Theorem states In an inviscid, barotropic flow with conservative body forces, the circulation around a closed curve moving with the fluid remains constant with time [Kundu, P and Cohen, I: Fluid Mechanics … Wikipedia
