@article{oai:nagasaki-u.repo.nii.ac.jp:00014359, author = {葉山, 賢司 and 児玉, 好雄 and 林, 秀千人 and 田中, 清裕 and 河部, 秀彦}, issue = {37}, journal = {長崎大学工学部研究報告, Reports of the Faculty of Engineering, Nagasaki University}, month = {Jul}, note = {The effects of four design parameters, the number of disks, the rotational frequency, the thickness of disk and the distance of two disks on noise generated from laminar flow fan were experimentally investigated, and discussed. The fan noise increases with increasing the number of disks and the rotational frequency. That is, the sound pressure is nearly proportional to the number of disks and the rotational frequency of the sixth power. The thickness of disk and the distance of two disks are little independenent of fan noise. According to specific noise level, the laminar flow fan is by no means inferior to the centrifugal fan. The laminar fan noise is almost turbulent noise., 長崎大学工学部研究報告, 21(37), pp.111-118; 1991}, pages = {111--118}, title = {層流ファンの発生騒音におよぼす諸因子の影響}, volume = {21}, year = {1991} }