@techreport{oai:jaxa.repo.nii.ac.jp:00041189, author = {野口, 正芳 and 佐藤, 衛 and 神田, 宏 and 石田, 洋治 and Noguchi, Masayoshi and Sato, Mamoru and Kanda, Hiroshi and Ishida, Yoji}, month = {May}, note = {吸い込みのある場合とない場合との抵抗特性を比較するため、多溝性、多孔性および固体面の3種類の表面をもつ自然層流翼型模型につき高亜音速、高レイノルズ数での風洞試験を行った。マッハ数は0.60から0.85まで、レイノルズ数は6×10{6}から20×10{6}までの範囲とした。試験結果は、気流の乱れ、吸込み用溝や孔の存在などの層流化を妨げる要因があるにも拘わらず、吸い込みにより約10%の抵抗減少が得られることを示した。, Wind tunnel tests in high subsonic and high Reynolds number flows were conducted using slotted, perforated, and solid-surface NLF (Natural Laminar Flow) airfoils to compare their drag characteristics with and without suction. The Mach number was varied from 0.6 to 0.85 and the Reynolds number from 6 to 20 million. The results show that a net drag reduction of about 10 percent was attained by suction despite the presence of severe adverse effects against laminarization in the wind tunnel test such as free-stream turbulence and roughness effects of suction holes or slots., 資料番号: AA0004219000, レポート番号: NAL TR-1204}, title = {吸い込みのある2次元自然層流翼の高亜音速、高Re数風洞試験}, year = {1993} }