著者

嶺 祐太 平原 裕行 蛭ヶ谷 潤

出版者

日本流体力学会

雑誌

日本流体力学会年会講演論文集 (ISSN:13428004)

巻号頁・発行日

vol.2009, 2009-09-02

---

A laser-induced micro shock wave was observed with shadowgraphic technique. The shock wave was induced on a metal surface by laser irradiation. In this paper, a micro shock wave was introduced in a relatively low intensity energy region. Shadowgraphic images were acquired within 1μs from laser irradiation. The shock Mach number was measured by shadowgraphic images, and it was higher than 5 in 100ns from laser irradiation in present experimental condition. Energy conversion coefficient was estimated by ratio of the shock wave energy to input laser energy. Here, the shock wave energy was estimated by self-similar analysis.