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Integrated Numerical Prediction of Atomization Process of Liquid Hydrogen Jet by Jun Ishimoto; Katsuhide Ohira; Kazuki Okabayashi; Keiko Chitose is a Engineering article available to read on EtoBox.

What is Integrated Numerical Prediction of Atomization Process of Liquid Hydrogen Jet about?

The 3-D structure of the liquid atomization behavior of an LH 2 jet flow through a pinhole nozzle is numerically investigated and visualized by a new type of integrated simulation technique. The present computational fluid dynamics (CFD) analysis focuses on the thermodynamic effect on the consecutive breakup of a cryogenic liquid column, the formation of a liquid film, and the generation of droplets in the outlet section of the pinhole nozzle. Utilizing the governing equations for a high-speed turbulent cryogenic jet flow through a pinhole nozzle based on the thermal nonequilibrium LES-VOF model in conjunction with the CSF model, an integrated parallel computation is performed to clarify the detailed atomization process of a high-speed LH 2 jet flow through a pinhole nozzle and to acquire data, which is difficult to confirm by experiment, such as atomization length, liquid core shape, droplet-size distribution, spray angle, droplet velocity profiles, and thermal field surrounding the atomizing jet flow. According to the present computation, the cryogenic atomization rate and the LH 2 droplets-gas two-phase flow characteristics are found to be controlled by the turbulence perturbati

Who reads Integrated Numerical Prediction of Atomization Process of Liquid Hydrogen Jet?

Author

Jun Ishimoto; Katsuhide Ohira; Kazuki Okabayashi; Keiko Chitose

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0011-2275)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)