layer thickness variation - ορισμός. Τι είναι το layer thickness variation
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Τι (ποιος) είναι layer thickness variation - ορισμός

Displacement thickness; Momentum thickness; Shape factor (boundary layer flow); Boundary-layer thickness
  • Figure 3: The velocity profile from a NACA0012 airfoil simulation at x/c = 0.3.<ref>R. Swanson and S. Langer, 2016</ref>
  • Figure 1: Schematic drawing depicting fluid flow entering the bottom half of a 2-D channel with plate-to-plate spacing of ''H''.  The flow and channel extend perpendicular to the ''x-y''-plane.
  • Figure 2:  The depiction of the laminar “unbounded” boundary layer along a 2-D flat plate with the flow and plate extending perpendicular to the ''x-y''-plane.

Boundary layer thickness         
This page describes some of the parameters used to characterize the thickness and shape of boundary layers formed by fluid flowing along a solid surface. The defining characteristic of boundary layer flow is that at the solid walls, the fluid's velocity is reduced to zero.
Half-value layer         
THICKNESS OF AN ATTENUATING LAYER WHICH REDUCES THE VALUE OF A QUANTITY TO HALF OF ITS INITIAL VALUE
Half value layer; Half thickness; Half-thickness; Half-Value Layer; Half-value thickness; Tenth value layer; Halving distance
A material's half-value layer (HVL), or half-value thickness, is the thickness of the material at which the intensity of radiation entering it is reduced by one half.http://www.
variation         
WIKIMEDIA DISAMBIGUATION PAGE
Variations; Varied; Varying; Variation (disambiguation); Viccitude; Variations (album); Variation (combinatorics); Variations (Combinatorics); Variation (Combinatorics)
¦ noun
1. a change or slight difference in condition, amount, or level.
(also magnetic variation) the angular difference between true north and magnetic north at a particular place.
2. a different or distinct form or version.
Music a new but still recognizable version of a theme.
Ballet a solo dance as part of a performance.
Derivatives
variational adjective

Βικιπαίδεια

Boundary layer thickness

This page describes some of the parameters used to characterize the thickness and shape of boundary layers formed by fluid flowing along a solid surface. The defining characteristic of boundary layer flow is that at the solid walls, the fluid's velocity is reduced to zero. The boundary layer refers to the thin transition layer between the wall and the bulk fluid flow. The boundary layer concept was originally developed by Ludwig Prandtl and is broadly classified into two types, bounded and unbounded. The differentiating property between bounded and unbounded boundary layers is whether the boundary layer is being substantially influenced by more than one wall. Each of the main types has a laminar, transitional, and turbulent sub-type. The two types of boundary layers use similar methods to describe the thickness and shape of the transition region with a couple of exceptions detailed in the Unbounded Boundary Layer Section. The characterizations detailed below consider steady flow but is easily extended to unsteady flow.