You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    Volume 48, Issue 6 (November 2020)

    Fire Water Monitor Trajectories Based on Turbulence Breakup Model

    (Received 25 June 2018; accepted 26 September 2018)

    Published Online: 2019

    CODEN: JTEVAB

      Format Pages Price  
    PDF (1013.89 KB) 18 $25   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word



    Abstract

    Fire remains one of the most pervasive threats to public safety and social development in real life. Fire water monitors have been used as tools for ending the fire all the time. The impact point accuracy of the water jet and the accurate prediction of the water jet trajectory have a significant effect on the efficiency of fire extinction. The quadratic drag model is selected on the basis of the analysis of the mechanical model of fluidic control volume considering the change of the cross-sectional area caused by the velocity and breakup of the water jet. The change of diameter and area of the droplet are also discussed, based on the theory of liquid jet breakup, to build a dynamic breakup model of air resistance and broken jet. The water jet simulations are performed on two different scales by researching several main performance parameters, such as discharge angle and initial velocity, which can affect the jet trajectory of fire water monitor. The influences of various parameters on the jet trajectory are summarized through the simulations of two kinds of water jet experimental data, and an accurate prediction of the jet trajectory of fire water monitor is realized.

    Author Information:

    Zhang, Minghui
    School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai,

    Liu, Xintian
    School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai,

    Wang, Xiaolan
    School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai,

    Wang, Yansong
    School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai,

    Liang, Wei
    School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai,


    Stock #: JTE20180428

    ISSN:0090-3973

    DOI: 10.1520/JTE20180428

    Author
    Title Fire Water Monitor Trajectories Based on Turbulence Breakup Model
    Symposium ,
    Committee F17