angle of incidence

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an·gle of in·ci·dence

1. the angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. the angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle

an·gle of in·ci·dence

(anggĕl insi-dĕns)
1. Angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. Angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle.
References in periodicals archive ?
Next, enthalpy conversion to pressure is modeled as energy transfer coefficient deviation from an ideal compression process, based on estimated flow incidence angles and local velocities.
The classification accuracy was better identified in the C band dual polarization and incidence angles (Ponnurangam 2011).
[25] analysed that the critical pressure coefficients may not be found perpendicular to wind incidence angles only.
Effect of the gap can be analyzed from the section lift coefficient along the wingspan of each lifting surface for the tandem wing configuration, in which the stagger is 1.63c, [S.sub.t] = 1.63c, the incidence angle along its wingspan is constant, [[delta].sub.1] = 2[degrees], [[delta].sub.2] = 0, and the gap ranges from -2.0c to 2.0c.
The hourly climate data such as ambient temperature, radiations, and incidence angle based on TMY files are incorporated through Type 15.
Therefore, the incidence angle can be estimated by [[phi].sub.k,n] = [f.sub.k,n] d sin([[theta].sub.k])/c with signal frequencies:
With increasing incidence angle of cylindrical wave in the propagation process, the length of Mach stem increases, and the angle of the reflection wave also increases because it is impossible to be strengthened in any radial direction of a wavefront due to the Mach stem.
Secondly, within a transient crosswind, the incidence angle will also vary rapidly in time.
As shown in Figure 10, all three scenarios are characterized by a near ideal 100% RRE at 0[degrees] incidence angle, which then decreases to almost null values as the angle of incidence increases.
For both the BLND and individual mixed films at 0.11[degrees] incidence angle, three diffraction peaks marked as (hOO) where, h = 1-3 corresponds to layered intra-chain P3HT orientation along a axis of crystallographic plane and (010) peak indexed the inter-chain [pi]-[pi] stacking orientation of P3HT backbone along [alpha]-axis of crystallographic plane (Fig.