STP1083

    Experimental Investigation of a Fan Spray Using Laser Diffraction and Phase-Doppler Instruments

    Published: Jan 1990


      Format Pages Price  
    PDF Version (196K) 11 $25   ADD TO CART
    Complete Source PDF (4.5M) 11 $78   ADD TO CART


    Abstract

    In the experimental work reported here, laser Doppler anemometry was used for “point” measurements of bivariate distributions of velocity and drop size (LDVS), and diffraction sizemetry (DSM) was used for line-of-sight measurements of drop size in sprays of water. Laser light sheet photographs were used to determine the spray geometry. The measurement positions were chosen so that the mean axes of the horizontal spray planes containing the LDVS measurement points coincided with the axis of the DSM laser beam. In this case, experimental results of DSM and LDVS are comparable, if one takes into account the laws of the conversion of drop flux (LDVS results) into a drop concentration (DSM results). Mean diameters as well as cumulative distributions obtained by LDVS at different measurement locations are compared with corresponding DSM results. Advantages and disadvantages of both methods with respect to spray analysis are discussed.

    Keywords:

    drop size, water sprays, fan sprays, laser Doppler anemometry, diffraction sizemetry, velocity


    Author Information:

    Dannehl, M
    Scientific assistant, scientific assistant, and project group leader, University of Bremen, Bremen 33,

    Schöne, F
    Scientific assistant, scientific assistant, and project group leader, University of Bremen, Bremen 33,

    Schulte, G
    Scientific assistant, scientific assistant, and project group leader, University of Bremen, Bremen 33,


    Paper ID: STP25425S

    Committee/Subcommittee: E29.03

    DOI: 10.1520/STP25425S


    CrossRef ASTM International is a member of CrossRef.