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http://dx.doi.org/10.6108/KSPE.2021.25.5.073

Spray Image of Gelled Kerosene with Nanoparticles at Multi-hole Pintle Injector  

Hwang, Juhyun (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Choi, Myeunghwan (Department of Smart Drone Convergence, Korea Aerospace University)
Koo, Jaye (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.25, no.5, 2021 , pp. 73-79 More about this Journal
Abstract
This study was carried out to analyze the properties of the gel propellant and spray characteristics according to the addition of fine particles. The multi-hole diameter was 0.4 mm to induce a high shear rate, and a kerosene gel propellant was prepared using 5 wt% of the Thixatrol ST and SUS304 of 100 nm. The experiment was conducted by fixing the supply pressure in the axial direction to 0.7 MPa and adjusting the supply pressure in the radial direction from 0.7 MPa to 2.1 MPa. Due to the addition of fine particles, pressure vibration during spraying, a small TMR(Total Momentum Ratio) of up to 0.19, and a phenomenon that the spraying angle rapidly increased to more than 70 degrees occurred.
Keywords
Gelled Kerosene; Pintle Injector; Multi-hole Pintle Injector; Nanoparticle;
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