Accession Number : ADD008943

Title :   Method and Apparatus for Analyzing Supersonic Flow Fields by Laser Induced Fluorescence.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Davis,Steven J

Report Date : 18 Aug 1981

Pagination or Media Count : 9

Abstract : This application discloses a method and apparatus for visually analyzing gaseous flow fields. A vaporous substances that fluoresces when irradiated by a particular laser beam is injected into a structure containing a flowing gas in a manner such that a uniform dispersion of the vaporous substance throughout the gas flow is achieved. The beam from a pump laser in optical communication with the gas flow pumps the ground state of the vaporous substance to an excited state an causes the vaporous substance to fluoresce in the area illuminated by the beam, thus providing a visual indication of the pattern of gas flow in the structure.

Descriptors :   *Patent applications, *Flow fields, *Vapors, *Laser induced fluorescence, Laser pumping, Fluorescence, Supersonic flow, Laser beams, Gas flow, Inventions

Subject Categories : Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE