Laser diagnostics for flowfields, combustion, and MHD applications

Journal Article · Wed Feb 01 00:00:00 EST 1984 · AIAA J.; (United States)

DOI:https://doi.org/10.2514/3.48435· OSTI ID:6546383

Lederman, S; Sacks, S

Among the most extensively investigated light scattering processes considered for the analysis of flowfields, combustion systems and MHD phenomena have been such elastic scattering types as the Rayleigh and Mie, and inelastic scattering processes such as Raman, near-resonant Raman, and fluorescence. Additional techniques for combustion and flowfield diagnostics are the absorption optical processes of coherent anti-Stokes Raman and stimulated Raman scattering. The Mie scattering phenomenon has been used in laser Doppler velocimetry, and can provide nonintrusive measurements of velocity, turbulent intensity, and particle size distribution in flowfields. It is noted that the equivalent scattering cross section of coherent anti-Stokes Raman spectroscopy, in conjunction with the coherence of the radiation, yields signals 5-6 order of magnitude higher than the spontaneous Raman effect.

• Research Organization: New York Polytechnic Inst., Farmingdale
• OSTI ID: 6546383
• Journal Information: AIAA J.; (United States), Vol. 22
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
47 OTHER INSTRUMENTATION
COMBUSTION
LASER SPECTROSCOPY
FLUID FLOW
REVIEWS
MAGNETOHYDRODYNAMICS
FLUORESCENCE
PLASMA DIAGNOSTICS
RAMAN SPECTROSCOPY
CHEMICAL REACTIONS
DOCUMENT TYPES
FLUID MECHANICS
HYDRODYNAMICS
LUMINESCENCE
MECHANICS
OXIDATION
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
420400* - Engineering- Heat Transfer & Fluid Flow
440300 - Miscellaneous Instruments- (-1989)