To explore the influence of the flow straightener (FS) on the internal flow field of the three-phase jet fire monitor (TPJFM), this study conducted an analysis of the flow characteristics within the TPJFM.Through numerical simulations based on ANSYS/FLUENT, the velocity, turbulent kinetic energy, pressure, velocity uniformity, and outlet performance of the internal flow field of the TPJFM were evaluated for different FS installation positions, installation angles, and structures.Results show that, the structural form of the FS significantly influences the internal flow field.The advanced rectification capability of the FS can immediately return the fluid in the grid to a laminar flow state.However, the exchange of kinetic energy between the regions increases turbulent kinetic energy and reduces outlet velocity.The FS blade and symmetry plane of the powder pipe overlap can effectively reduce the turbulence kinetic energy generated by the powder pipe.Reasonable FS parameters can enhance the flow characteristics of the flow field and improve jet performance.These findings could serve as an important reference for designing an optimized TPJFM structure.
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Zhang et al. (2024) studied this question.
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