Journal Published Online: 07 February 2020
Volume 49, Issue 1

Firewater Monitor Trajectories Based on Jet Expansion and Dynamic Breakup Model

CODEN: JTEVAB

Abstract

The primary objective of this study was to establish a model for predicting the jet trajectory of a firewater monitor. The jet trajectory is mainly affected by its own gravity and air resistance, and the magnitude of the air resistance changes with the cross-sectional area of the jet. The model is established by combining air resistance changes and breakup theory, and the factors affecting the location of jet trajectory are studied. The accuracy and reliability of the model is verified by comparative analysis of theoretical simulation data and experimental data. The error between the prediction and experimental data that can be maintained is about 10 % on average, which can meet the engineering application requirements. In addition, the shape of the jet and analyses of the causes of shape asymmetry are discussed.

Author Information

Shang, Wenqian
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China
Liu, Xintian
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China
Zhang, Minghui
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China
Qu, Yang
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China
Wang, Yansong
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China
Pages: 17
Price: $25.00
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Details
Stock #: JTE20190748
ISSN: 0090-3973
DOI: 10.1520/JTE20190748