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Your search keyword '"Takagi, Toshimi"' showing total 240 results
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240 results on '"Takagi, Toshimi"'

1. Preferential diffusion effects in diffusion flames

Author

Takagi, Toshimi, Xu, Zhe, Komiyama, Masaharu, Araki, H., editor, Brézin, E., editor, Ehlers, J., editor, Frisch, U., editor, Hepp, K., editor, Jaffe, R. L., editor, Kippenhahn, R., editor, Wiedenmüller, H. A., editor, Wess, J., editor, Zittartz, J., editor, Beiglböck, W., editor, Buckmaster, John, editor, and Takeno, Tadao, editor

Published
1995
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3. Numerical simulation of diffusion flames with and without magnetic field

Author

Kinoshita, Shinichi, Takagi, Toshimi, Kotera, Hideki, and Wakayama, Nobuko I.

Subjects
Hydrogen bonding -- Analysis, Magnetic fields -- Research, Business, Electronics, Electronics and electrical industries
Abstract

A study is conducted on axisymmetric laminar hydrogen diffusion flames focusing on the unsteady behavior under microgravity and the effects of magnetic fields. The result show that the flow configuration formed by the magnetic force under microgravity is similar to that under the normal gravity without the magnetic field.

Published
2004

6. Studies on the behavior of droplets and the air flow in a hollow-cone spray

Author

Okamoto, Tatsuyuki, Takagi, Toshimi, Kaji, Toshikazu, Shimazaki, Katsunori, and Nakanishi, Kenji

Subjects
Drops -- Research, Air flow -- Research, Atomizers -- Research, Engineering and manufacturing industries, Science and technology
Abstract

Experimental and numerical investigations are made on the behavior of droplets in a hollow-cone spray paying attention to the liquid sheet formed at the orifice of pressure-swirl atomizer. Simultaneous measurements of droplet sizes and velocities are made by phase-Doppler technique and numerical simulations are carried out based on the transient Eulerian equations for the gas and the Lagrangian equation for the droplets, taking account of the liquid sheet formed at the atomizer orifice. It is shown that the simulation gives good predictions by incorporating the existence of the liquid sheet. The predicted results indicate that the movement of the liquid sheet induces a strong air stream which acts as a strong side wind against the droplets immediately after breakup. This air stream selectively transports small droplets toward the central region and plays an essential role in the classification of droplets by size. Accordingly, the existence of the liquid sheet is significant for the characteristics of droplet dispersion and it should not be neglected in the prediction of hollow-cone spray flows. In addition, the shape of the liquid sheet is theoretically computed based on the simplified equations of motion. The comparison between the theoretical computation and the experimental result suggests that the surface tension of liquid is predominant in determining the shape of the liquid sheet.

Published
1998

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