@article{oai:nagasaki-u.repo.nii.ac.jp:00021058,
 author = {児玉, 好雄 and 林, 秀千人 and 濱田, 靖夫 and 田中, 清裕},
 issue = {45},
 journal = {長崎大学工学部研究報告},
 month = {Jul},
 note = {We made an experimental and theoretical investigation on the turbulent noise by bladed multiple-disk fans. In the theory, we assumed that the turbulent noise by these fans was consist of two sources; the turbulent boundary layer on the disk surface and the vortex shedding from the trailing edge of blades. and that these two sources were independent of each other. To estimate the acoustic power due to the later source, we proposed a new method to calculate the wake width D which was an important parameter to control the noise level. The effects of four parameters, such as the span length of the blade, the number of blades, the inner radius of the impeller and the setting angle of the blade, on the turbulent noise were investigated. The agreement between the theoretical and the experimental results was satisfactory., 長崎大学工学部研究報告 Vol.25(45) p. 87-94, 1995},
 pages = {87--94},
 title = {翼付き多層円板ファンの乱流騒音に関する研究},
 volume = {25},
 year = {1995}
}