AUTHOR=Ochiai Masayuki , Ohya Yuta TITLE=The effect of inner ring groove on leakage reduction in dry gas seals and its visualization verification JOURNAL=Frontiers in Mechanical Engineering VOLUME=10 YEAR=2024 URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2024.1488803 DOI=10.3389/fmech.2024.1488803 ISSN=2297-3079