並列タイトル等Instability of outgoing flow between two parallel disks and its transition to turbulence
タイトル(掲載誌)独立行政法人航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-59
一般注記Instability of radially outgoing flow between two parallel disks and its transition to turbulence are investigated by numerical simulations and linear stability analyses of the steady symmetric flow based on the assumption of incompressible axisymmetric flow. At small Reynolds numbers, the flow is steady and symmetric along the centerline between two parallel disks. It is found that the symmetric steady flow becomes asymmetric above a critical Reynolds number, which is revealed due to a supercritical pitchfork bifurcation. The transition from the steady symmetric flow to the asymmetric one depends the inlet radius at which the flow is introduced. The critical Reynolds number is determined as a function of the inlet radius. Oscillatory flow is also found with further increase of the Reynolds number.
資料番号: NALSP0059003
レポート番号: NAL SP-59
一次資料へのリンクURLhttps://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43575&item_no=1&attribute_id=31&file_no=1
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ