Wang, C.-T.C.-T.WangCHIEN-CHENG CHANG2020-04-282020-04-281998https://scholars.lib.ntu.edu.tw/handle/123456789/486020Sound radiation by a vortex ring passing near the apex of a conical bodyjournal article10.1098/rspa.1998.01842-s2.0-33746696609https://www.scopus.com/inward/record.uri?eid=2-s2.0-33746696609&doi=10.1098%2frspa.1998.0184&partnerID=40&md5=a74d4b673023815a1de7ce76c90b7878