EXPANSION TUNNEL PERFORMANCE WITH AND WITHOUT AN ELECTROMAGNETICALLY OPENED TERTIARY DIAPHRAGM.

被引：0
|
作者：
Miller, Charles G.
机构：
来源：
| 1977年
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A study was made, the purpose of which was to examine the effect of synchronization of an electromagnetically opened tertiary diaphragm with flow arrival at the diaphragm on the pitot pressure measured at the test section of the Langley expansion tunnel, and to determine the effect of tertiary diaphragm pressure ratio (ratio of initial nozzle pressure to quiescent acceleration section pressure) on the pitot pressure time history. As a point of interest, the study revealed the inadequacy of a pressure transducer protection arrangement used in previous expansion tube and expansion tunnel tests. This inadequacy, in terms of response time, is demonstrated herein for the short test time of the expansion tunnel and low magnitude of pitot pressure.
引用
收藏
页码：1045 / 1047
相关论文
共 15 条
  • [1] EXPANSION TUNNEL PERFORMANCE WITH AND WITHOUT AN ELECTROMAGNETICALLY OPENED TERTIARY DIAPHRAGM
    MILLER, CG
    AIAA JOURNAL, 1977, 15 (07) : 1045 - 1047
  • [2] Endoscopic reconstruction of large anterior skull base defects with opening of the sellar diaphragm. Experience at a tertiary level university hospital
    Carnevale, C.
    Tomas-Barberan, M.
    Til-Perez, G.
    Ibanez-Dominguez, J.
    Arancibia-Tagle, D.
    Rodriguez-Villalba, R.
    Sarria-Echegaray, P.
    JOURNAL OF LARYNGOLOGY AND OTOLOGY, 2019, 133 (10): : 889 - 894
  • [3] GEOTECHNICAL PERFORMANCE OF DIAPHRAGM WALLS DURING CONSTRUCTION OF CAIRO METRO TUNNEL
    ELNAHHAS, F
    EISENSTEIN, Z
    SHALABY, A
    SALAM, M
    ELBEDAIWY, S
    TUNNELS AND WATER, VOLS 1-3: WATER AND ITS INFLUENCE ON THE DESIGN, CONSTRUCTION, AND EXPLOITATION OF TUNNELS AND UNDERGROUND WORKS, 1989, : 259 - 266
  • [4] Comparison of aerodynamic performance of moving train model at bridge-tunnel section in wind tunnel with or without tunnel portal
    Ouyang, Dehui
    Yang, Weichao
    Deng, E.
    Wang, Youwu
    He, Xuhui
    Tang, Linbo
    TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2023, 135
  • [5] Tertiary Survey Performance in a Regional Trauma Hospital Without a Dedicated Trauma Service
    Keijzers, Gerben B.
    Campbell, Don
    Hooper, Jeffrey
    Bost, Nerolie
    Crilly, Julia
    Steele, Michael Craig
    Eddington, Blake
    Geeraedts, Leo M. G., Jr.
    WORLD JOURNAL OF SURGERY, 2011, 35 (10) : 2341 - 2347
  • [6] Tertiary Survey Performance in a Regional Trauma Hospital Without a Dedicated Trauma Service
    Gerben B. Keijzers
    Don Campbell
    Jeffrey Hooper
    Nerolie Bost
    Julia Crilly
    Michael Craig Steele
    Blake Eddington
    Leo M. G. Geeraedts
    World Journal of Surgery, 2011, 35 : 2341 - 2347
  • [7] Comparison study of the effect of bridge-tunnel transition on train aerodynamic performance with or without crosswind
    Zhou, Lei
    Liu, Tanghong
    Chen, Zhengwei
    Li, Wenhui
    Guo, Zijian
    He, Xuhui
    Wang, Youwu
    WIND AND STRUCTURES, 2021, 32 (06) : 597 - 612
  • [8] Analog and linearity performance analysis of ferroelectric vertical tunnel field effect transistor with and without source pocket
    Singh, Ashish Kumar
    Kumar, Ramesh
    Maity, Heranmoy
    Singh, Prabhat
    Singh, Sarabdeep
    INTERNATIONAL JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS, 2024, 37 (04)
  • [9] On the performance of sudden-expansion pipe without/with cross-flow injection: experimental and numerical studies
    El-Askary, W. A.
    El-Mayet, M.
    Balabel, A.
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2012, 69 (02) : 366 - 383
  • [10] Wind tunnel experimental study on static aerodynamic performance of SB-VAWT without intermediate support axes
    Zhang, Huawu
    Hu, Yihuai
    FRONTIERS IN ENERGY RESEARCH, 2023, 11
12