oblique coordinates - definition. What is oblique coordinates
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%ما هو (من)٪ 1 - تعريف

SHOCK WAVE THAT IS INCLINED WITH RESPECT TO THE INCIDENT UPSTREAM FLOW DIRECTION
Oblique shocks; Oblique shock wave
  • [[Concorde]] intake ramp system
  • F-14D Tomcat showing wedge-shaped intakes
  • This chart shows the oblique shock angle, β, as a function of the corner angle, θ, for a few constant M<sub>1</sub> lines.  The red line separates the strong and weak solutions. The blue line represents the point when the downstream Mach number becomes sonic. The chart assumes <math>\gamma</math>=1.4, which is valid for an ideal diatomic gas.
  • Supersonic flow encounters a wedge and is uniformly deflected forming an oblique shock.
  • T-38]] aircraft is made visible through [[Schlieren photography]]

Homogeneous coordinates         
MATHEMATICS
Homogenous coordinates; Homogeneous coordinate; Homogeneous co-ordinates; Homogeneous coordinate system; Projective coordinates; Homogeneous Coordinates; Homogenous coordinate
In mathematics, homogeneous coordinates or projective coordinates, introduced by August Ferdinand Möbius in his 1827 work ,August Ferdinand Möbius: Der barycentrische Calcul, Verlag von Johann Ambrosius Barth, Leipzig, 1827.
Lemaître coordinates         
PARTICULAR SET OF COORDINATES FOR THE SCHWARZSCHILD METRIC
Lemaitre coordinates; Lemaitre metric; Lemaître Coordinates; Lemaître metric
Lemaître coordinates are a particular set of coordinates for the Schwarzschild metric—a spherically symmetric solution to the Einstein field equations in vacuum—introduced by Georges Lemaître in 1932. English translation: See also:  … Changing from Schwarzschild to Lemaître coordinates removes the coordinate singularity at the Schwarzschild radius.
Abdominal external oblique muscle         
MUSCLE
External oblique; External oblique muscle; Oblique strength; Obliquus externus abdominis muscle; Obliquus externus; Obliquus externus abdominis; Obliquus abdominis externus; External abdominal oblique; External abdominal oblique muscle; External oblique abdominis; External oblique abdominis muscle; External oblique abdominal muscles; External Oblique; External obliques; Musculus obliquus externus; Musculus obliquus externus abdominis; External oblique abdominal muscle; Oblique strain
The abdominal external oblique muscle (also external oblique muscle, or exterior oblique) is the largest and outermost of the three flat abdominal muscles of the lateral anterior abdomen.

ويكيبيديا

Oblique shock

An oblique shock wave is a shock wave that, unlike a normal shock, is inclined with respect to the incident upstream flow direction. It will occur when a supersonic flow encounters a corner that effectively turns the flow into itself and compresses. The upstream streamlines are uniformly deflected after the shock wave. The most common way to produce an oblique shock wave is to place a wedge into supersonic, compressible flow. Similar to a normal shock wave, the oblique shock wave consists of a very thin region across which nearly discontinuous changes in the thermodynamic properties of a gas occur. While the upstream and downstream flow directions are unchanged across a normal shock, they are different for flow across an oblique shock wave.

It is always possible to convert an oblique shock into a normal shock by a Galilean transformation.