航技研超音速風洞測定部のマッハ数分布測定

Material type: 文書・図像類

Author: 楯, 篤志ほか

Publisher: 航空宇宙技術研究所

Publication date: 2000-07

Material Format: Digital

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Note (General)：: 20-21 May 1999 (62nd). 25-26 Nov. 1999 (63rd)航技研超音速風洞の測定部断面(1m×1m)の圧力を15本のピトー管(総圧管)からなる櫛型プローブ、および高速多点圧力計測装置(ZOCシステム)を用いて計測し、測定部断面のマッハ数分布を測定した。この手法により、...

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Material Type: 文書・図像類
Title: 航技研超音速風洞測定部のマッハ数分布測定
Author/Editor: 楯, 篤志
浜本, 滋
野田, 順一
渡辺, 光則
原, 亘利
Tate, Atsushi
Hamamoto, Shigeru
Noda, Junichi
Watanabe, Mitsunori
Hara, Nobutoshi
Author Heading: 楯, 篤志
浜本, 滋
野田, 順一
渡辺, 光則
原, 亘利
Tate, Atsushi
Hamamoto, Shigeru
Noda, Junichi
Watanabe, Mitsunori
Hara, Nobutoshi
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 2000-07
Publication Date (W3CDTF): 2000-07
Alternative Title: Mach number distribution of NAL supersonic wind tunnel
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory
No. or year of volume/issue: 45
Volume: 45
Pages: 29-39
ISSN (Periodical Title): ISSN : 0289-260X
Text Language Code: jpn
Subject Heading: 超音速風洞
マッハ数分布
観測窓
圧力分布
櫛型プローブ
多点圧力計測装置
シュリーレン写真
圧力勾配
気流傾斜
ピトー管
NAL
総圧管
supersonic wind tunnel
Mach number distribution
observation window
pressure distribution
comb type probe
multipoint pressure instrument
Schlieren photograph
pressure gradient
air flow inclination
Pitot tube
total pressure tube
Target Audience: 一般
Note (General): 20-21 May 1999 (62nd). 25-26 Nov. 1999 (63rd)
航技研超音速風洞の測定部断面(1m×1m)の圧力を15本のピトー管(総圧管)からなる櫛型プローブ、および高速多点圧力計測装置(ZOCシステム)を用いて計測し、測定部断面のマッハ数分布を測定した。この手法により、シュリーレン窓中心位置における風洞測定部断面の左右±14cm、上下±30cmの範囲を2cm間隔で左右15点、上下31点のメッシュ状に圧力データを計測し、マッハ数分布を求めた。この結果、マッハ数の低い範囲では、マッハ数の非一様性は1%未満であるが、マッハ数が高くなるに従って一様性が悪くなることが分かった。また、シュリーレン観測窓中心から15cm上流断面、12cm下流断面についてのマッハ数分布を測定し、気流の傾きを推定した。
The Mach number distribution in the measurement section (1 m x 1 m) of the NAL Supersonic Wind Tunnel was measured by using a comb-type probe with 15 Pitot tubes (total pressure tube) and a high-speed multipoint pressure measuring instrument (ZOC system). The range of +/- 14 cm in the left and right directions and the range of +/- 30 cm in the up and down directions from the center of the Schlieren window of the measurement section of the wind tunnel were divided into 2 cm intervals, 15 intervals horizontally and 31 intervals vertically. At these meshed areas, pressure data were measured and then the Mach number distribution was obtained. As a result, it was shown that the uniformity of the Mach number was better than one percent in the lower Mach number range but increasingly poorer for the higher Mach number. In addition, the Mach number distributions were measured at the cross sections, 15 cm upstream and 12 cm downstream from the center of the Schlieren observation window, and the inclination of the air flow was inferred.
資料番号: AA0028634003
レポート番号: NAL SP-45
Access Restrictions: 限定公開
Periodical Title (NCID): AN10097345
https://ci.nii.ac.jp/ncid/AN10097345
Data Provider (Database): 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）
https://irdb.nii.ac.jp
Original Data Provider (Database): 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