Application of laser schilieren and monochromatic photography to solid propellant combustion research.
Klahr, Owen Allen
Netzer, David W.
Fuhs, Allen E.
MetadataShow full item record
Ammonium perchlorate (AP) -binder sandwiches and a composite propellant were burned in a combustion bomb at various pressures. A schlieren system equipped with an argon laser was used to study the flame structure. High speed monochromatic motion pictures of solid propellant were taken during combustion, and ammonium perchlorate-binder interactions were investigated. ' It was found that the laser source combined with a laser line filter allowed examination of the density gradient in the flame front. However, a good schlieren record could not be obtained at high power levels. The major problems were: (1) a "speckle" background effect on the high speed recording film, and (2) severe fringe pattern interference due to knife-edge problems and turbulence effects caused by the burning propellant. The monochromatic pictures demonstrated that propellants without opacifiers cannot be effectively examined for surface interactions during combustion when using high intensity laser light.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Goodwin, William Vernon (Monterey, California. Naval Postgraduate School, 1981-06);An experimental investigation was conducted into four areas of the solid fuel ramjet combustion process: (1) the effects of near-wall turbulent mixing and equivalence ratio on combustion efficiency, (2) the effects of ...
Chozev, Yair; Kol, Jacob (Monterey, California. Naval Postgraduate School, 1985-07-01); NPS67-85-004CRThis paper presents a summary of the experimental results and studies of magnesium combustion in steam. The major subject of these studies was to measure the temperature of magnesium particles after the particles had been ...
Shavit, Zeev (Monterey, California. Naval Postgraduate School, 1986-08); NPS72-86-001CRThe possibility of ignition of some particles of a fragmented Under- Water (U/W) Shaped-Charge (S/C) jet is examined. It was determined that only minute particles (less than 6 micron diameter) are likely to undergo complete ...