{"id":2789,"date":"2024-03-13T22:56:26","date_gmt":"2024-03-13T14:56:26","guid":{"rendered":"https:\/\/cathayvista.top\/?p=2789"},"modified":"2025-01-31T11:23:43","modified_gmt":"2025-01-31T03:23:43","slug":"bypass-ratio-zhen","status":"publish","type":"post","link":"https:\/\/cathayvista.top\/index.php\/2024\/03\/13\/bypass-ratio-zhen\/","title":{"rendered":"\u6db5\u9053\u6bd4 \/ Bypass ratio – \u4e2d\u82f1\u6587\u7ef4\u57fa\u767e\u79d1\u8bcd\u6761\u878d\u5408"},"content":{"rendered":"\n
\n

\u4e2d\u6587\u8bcd\u6761\u539f\u6587\u94fe\u63a5\uff08\u65e0\u6cd5\u4ece\u4e2d\u56fd\u5185\u5730\u8bbf\u95ee\uff09\uff1a\u8bf7\u70b9\u51fb\u8fd9\u91cc\u8bbf\u95ee<\/a>
\u82f1\u6587\u8bcd\u6761\u539f\u6587\u94fe\u63a5\uff08\u65e0\u6cd5\u4ece\u4e2d\u56fd\u5185\u5730\u8bbf\u95ee\uff09\uff1a\u8bf7\u70b9\u51fb\u8fd9\u91cc\u8bbf\u95ee<\/a>
\u672c\u6587\u57fa\u4e8e\u82f1\u6587\u8bcd\u6761\u7684\u7ebf\u7d22\uff0c\u5e76\u8865\u5145\u90e8\u5206\u6765\u81ea\u4e2d\u6587\u8bcd\u6761\u7684\u5185\u5bb9\uff08\u5728\u4e8c\u8005\u51b2\u7a81\u65f6\uff0c\u4ee5\u66f4\u665a\u66f4\u65b0\u8005\u4e3a\u51c6\uff09\u3002\u8fbd\u89c2\u642c\u8fd0\u65f6\u8fdb\u884c\u4e86\u5fc5\u8981\u7684\u5408\u89c4\u5316\u5904\u7406\uff0c\u4ee5\u4f7f\u5176\u80fd\u591f\u5728\u4e2d\u56fd\u5185\u5730\u4e0a\u4f20\u3002 <\/p>\n\n\n\n

\u7ef4\u57fa\u767e\u79d1\uff08Wikipedia\uff09\u662f\u7f8e\u56fd\u7ef4\u57fa\u5a92\u4f53\u57fa\u91d1\u4f1a\u7684\u4e92\u8054\u7f51\u767e\u79d1\u9879\u76ee\uff0c\u5176\u5185\u5bb9\u53ef\u80fd\u53d7\u5230\u7acb\u573a\u3001\u4fe1\u606f\u6765\u6e90\u7b49\u56e0\u7d20\u5f71\u54cd\uff0c\u8bf7\u5ba2\u89c2\u770b\u5f85\u3002\u6b63\u6587\u5185\u5bb9\u4e0d\u4ee3\u8868\u8bd1\u8005\u89c2\u70b9\u3002 \u8fbd\u89c2\u63d0\u4f9b\u7684\u7ffb\u8bd1\u4ec5\u4f9b\u53c2\u8003\u3002\u6587\u4e2d\u53ef\u80fd\u5305\u542b\u65e0\u6cd5\u4ece\u4e2d\u56fd\u5185\u5730\u8bbf\u95ee\u7684\u94fe\u63a5\u3002 <\/p>\n\n\n\n

\u8fbd\u89c2\u6240\u642c\u8fd0\u7684\u8bcd\u6761\u6587\u672c\u4e0e\u7ef4\u57fa\u767e\u79d1\u4e00\u9053\u540c\u6837\u9075\u5faaCC BY-SA 4.0\u534f\u8bae\uff08\u8fbd\u89c2\u642c\u8fd0\u7684\u4e2d\u82f1\u6587\u5bf9\u7167\u7248\u672c<\/a>\uff09\uff0c\u5728\u7b26\u5408\u534f\u8bae\u8981\u6c42\u7684\u60c5\u51b5\u4e0b\u60a8\u53ef\u4ee5\u514d\u8d39\u4f7f\u7528\u5176\u5185\u5bb9\uff08\u5305\u62ec\u5546\u7528\uff09\u3002\u56fe\u7247\u548c\u89c6\u9891\u53ef\u80fd\u9075\u5faa\u4e0d\u540c\u7684\u5171\u4eab\u534f\u8bae\u3002\u8bf7\u70b9\u51fb\u8fd9\u91cc\u8bbf\u95ee<\/a><\/p>\n\u5c01\u9762\u56fe\u7247\uff1a\u6da1\u8f6e\u53d1\u52a8\u673a\u539f\u7406\u56fe\u3002\u9ad8\u6db5\u9053\u6bd4(\u9876\u56fe)\u6709\u4e00\u4e2a\u5927\u98ce\u53f6\uff0c\u5b83\u7ed5\u7740\u6da1\u8f6e\u673a\u8f93\u9001\u5927\u91cf\u7a7a\u6c14\uff1b\u4f4e\u6db5\u9053\u6bd4(\u4e2d\u56fe)\u6709\u4e00\u4e2a\u8f83\u5c0f\u7684\u98ce\u53f6\u5c06\u66f4\u591a\u7684\u7a7a\u6c14\u8f93\u9001\u5230\u6da1\u8f6e\u673a\uff1b\u6da1\u8f6e\u55b7\u6c14\u673a(\u5e95\u56fe)\u65e0\u65c1\u901a\u9053\uff0c\u6240\u6709\u7684\u7a7a\u6c14\u90fd\u901a\u8fc7\u6da1\u8f6e\u673a\u3002
\u56fe\u7247\u4f5c\u8005\uff1aEmoscopes<\/a> \u6b64\u56fe\u7247\u9075\u5faaCC BY 2.5\u534f\u8bae<\/cite><\/blockquote>\n\n\n\n

1. \u6b63\u6587\uff08\u53d1\u5e03\u4e8e\u77e5\u4e4e\u4e13\u680f\uff09<\/h2>\n\n\n\n

\u70b9\u51fb\u8fd9\u91cc\u8bbf\u95ee\u539f\u6587\u94fe\u63a5<\/a><\/p>\n\n\n\n

2. \u53c2\u8003\u6587\u732e\uff08\u4ec5\u82f1\u6587\u8bcd\u6761\uff0c\u4e2d\u6587\u8bcd\u6761\u672a\u5217\u51fa\u53c2\u8003\u6587\u732e\uff09<\/h2>\n\n\n\n
    \n
  1. “Bypass ratio | engineering”<\/em><\/a>.<\/em><\/li>\n\n\n\n
  2. Ilan Kroo and Juan Alonso. “Aircraft Design: Synthesis and Analysis, Propulsion Systems: Basic Concepts<\/a>Archive<\/a>” Stanford University School of Engineering, Department of Aeronautics and Astronautics<\/em><\/a>.
    Quote: “When the bypass ratio is increased to 10-20 for very efficient
    low speed performance, the weight and wetted area of the fan shroud
    (inlet) become large, and at some point it makes sense to eliminate it
    altogether. The fan then becomes a propeller and the engine is called a
    turboprop. Turboprop engines provide efficient power from low speeds up
    to as high as M=0.8 with bypass ratios of 50-100.”<\/li>\n\n\n\n
  3. Prof. Z. S. Spakovszky<\/a>. “11.5 Trends in thermal and propulsive efficiency<\/a>Archive<\/a>” MIT turbines<\/em><\/a>, 2002. Thermodynamics and Propulsion<\/a><\/li>\n\n\n\n
  4. Nag, P.K. “Basic And Applied Thermodynamics<\/a>[<\/sup>permanent dead link<\/sup><\/em><\/sup><\/a>]<\/sup>“
    p550. Published by Tata McGraw-Hill Education. Quote: “If the cowl is
    removed from the fan the result is a turboprop engine. Turbofan and
    turboprop engines differ mainly in their bypass ratio 5 or 6 for
    turbofans and as high as 100 for turboprop.”<\/li>\n\n\n\n
  5. Animated Engines<\/a><\/li>\n\n\n\n
  6. “Archived copy”<\/em><\/a>(PDF). Archived from <\/em>the original<\/em><\/a>(PDF) on 2017-05-16. Retrieved 2016-12-25.<\/em><\/li>\n\n\n\n
  7. Gas Turbine Aerodynamics, Sir Frank Whittle, Pergamon Press 1981, p.217<\/li>\n\n\n\n
  8. Aircraft Engine Design Second Edition, Mattingley, Heiser, Pratt, AIAA Education Series, ISBN<\/a> 1-56347-538-3<\/a>, p.539<\/li>\n\n\n\n
  9. “1964 – 2596”<\/em><\/a>. Archived from <\/em>the original<\/em><\/a> on 2016-12-24. Retrieved 2016-12-24.<\/em><\/li>\n\n\n\n
  10. Jane’s
    All The World’s Aircraft 1975-1976, edited by John W.R. Taylor, Jane’s
    Yearbooks, Paulton House, 8 Sheperdess Walk, London N1 7LW, p.748<\/li>\n\n\n\n
  11. Zipkin, M. A. (1984). <\/em>“The PW1120: A High Performance, Low Risk F100 Derivative”<\/em><\/a>. Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery. <\/em>doi<\/em><\/a>:<\/em>10.1115\/84-GT-230<\/em><\/a>. <\/em>ISBN<\/em><\/a> <\/em>978-0-7918-7947-4<\/em><\/a>.<\/em><\/li>\n\n\n\n
  12. “Never Told Tales of Pratt & Whitney by Dr. Bob Abernethy”<\/em><\/a>.<\/em><\/li>\n\n\n\n
  13. “The turbofan engine<\/a>Archived<\/a> 2015-04-18 at the Wayback Machine<\/a>“, page 7. SRM Institute of Science and Technology<\/em><\/a>, Department of aerospace engineering<\/em><\/li>\n\n\n\n
  14. Gas Turbine Theory Second Edition, Cohen, Rogers and Saravanamuttoo, Longmans Group Limited 1972, ISBN<\/a> 0 582 44927 8<\/a>, p.85<\/li>\n\n\n\n
  15. Aero
    Engine Development for the Future, H.W. Bennett, Proc Instn Mech Engrs
    Vol 197A, Power Industries Division, July 1983, Fig.5<\/li>\n\n\n\n
  16. Paul Bevilaqua<\/a> : The shaft driven Lift Fan propulsion system for the Joint Strike Fighter<\/a>Archived<\/a> 2011-06-05 at the Wayback Machine<\/a> page 3. Presented May 1, 1997. DTIC.MIL Word document, 5.5 MB. Accessed: 25 February 2012.<\/li>\n\n\n\n
  17. Bensen, Igor<\/a>. “How they fly – Bensen explains all<\/a>Archived<\/a> 2015-01-09 at the Wayback Machine<\/a>” Gyrocopters UK<\/em>. Accessed: 10 April 2014.<\/li>\n\n\n\n
  18. Johnson, Wayne. Helicopter theory<\/a> pp3+32, Courier Dover Publications<\/em>, 1980. Accessed: 25 February 2012. ISBN<\/a> 0-486-68230-7<\/a><\/li>\n\n\n\n
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  20. Philip Walsh, Paul Fletcher. “Gas Turbine Performance<\/a>“,
    page 36. John Wiley & Sons, 15 April 2008. Quote: “It has better
    fuel consumption than a turbojet or turbofan, due to a high propulsive
    efficiency.., achieving thrust by a high mass flow of air from the
    propeller at low jet velocity. Above 0.6 Mach number the turboprop in
    turn becomes uncompetitive, due mainly to higher weight and frontal
    area.”<\/li>\n\n\n\n
  21. “Rolls-Royce Aero Engines” Bill Gunston, Patrick Stevens Limited, ISBN<\/a> 1-85260-037-3<\/a>, p.147<\/li>\n\n\n\n
  22. “Propeller thrust<\/a>Archived<\/a> 2021-03-19 at the Wayback Machine<\/a>” Glenn Research Center<\/em><\/a> (<\/em>NASA<\/em><\/a>)<\/em><\/li>\n\n\n\n
  23. “Turboprop Engine<\/a>Archived<\/a> 2009-05-31 at the Wayback Machine<\/a>” Glenn Research Center<\/em><\/a> (<\/em>NASA<\/em><\/a>)<\/em><\/li>\n\n\n\n
  24. “PW1000G”<\/em><\/a>. <\/em>MTU<\/em><\/a>. Archived from <\/em>the original<\/em><\/a> on 2018-08-18. Retrieved 2020-11-06.<\/em><\/li>\n\n\n\n
  25. Jane’s All the World’s Aircraft. 2005. pp. 850\u2013853. <\/em>ISSN<\/em><\/a> <\/em>0075-3017<\/em><\/a>.<\/em><\/li>\n\n\n\n
  26. “The Leap Engine”<\/em><\/a>. CFM International.<\/em><\/li>\n\n\n\n
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  28. “GEnx”<\/em><\/a>. GE.<\/em><\/li>\n\n\n\n
  29. “50 years ago: GE roars back into the airline industry”<\/em><\/a>. General Electric.<\/em><\/li>\n\n\n\n
  30. “Silvercrest 2D for the Dassault Aviation Falcon 5X”<\/em><\/a>. Safran Aircraft Engines.<\/em><\/li>\n\n\n\n
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  32. Fred George (Nov 1, 2014). <\/em>“Gulfstream Unveils G500 and G600”<\/em><\/a>. Business & Commercial Aviation. Aviation Week.<\/em><\/li>\n\n\n\n
  33. “SaM146 | PowerJet”<\/em><\/a>. www.powerjet.aero. Archived from <\/em>the original<\/em><\/a> on 2014-11-08. Retrieved 2023-05-23.<\/em><\/li>\n\n\n\n
  34. “HF120 Turbofan Engine”<\/em><\/a>. Honda Worldwide. Retrieved September 29, 2017.<\/em><\/li>\n\n\n\n
  35. “General Electric F101”<\/em><\/a>. global security.<\/em><\/li>\n\n\n\n
  36. “General Electric CF700-2D-2”<\/em><\/a>. aircraft-database.<\/em><\/li>\n\n\n\n
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  38. “Pratt & Whitney JT3D-3B”<\/em><\/a>. aircraft-database.<\/em><\/li>\n\n\n\n
  39. “Pratt & Whitney JT8D \/ Volvo RM8”<\/em><\/a>. all-aero.<\/em><\/li>\n\n\n\n
  40. “General Electric F110”<\/em><\/a>. MTU Aero Engines.<\/em><\/li>\n\n\n\n
  41. “Adour Uninstalled Engine Test Facility”<\/em><\/a>. thermofluids.co.<\/em><\/li>\n\n\n\n
  42. “Pratt & Whitney F100”<\/em><\/a>. Purdue University.<\/em><\/li>\n\n\n\n
  43. “Rolls-Royce Spey”<\/em><\/a>. all-aero.<\/em><\/li>\n\n\n\n
  44. “Pratt & Whitney F135”<\/em><\/a>. worldwide-military.<\/em><\/li>\n\n\n\n
  45. “Saturn AL-31”<\/em><\/a>. United Engine Corporation.<\/em><\/li>\n\n\n\n
  46. “Honeywell F124”<\/em><\/a>. militaryleak.<\/em><\/li>\n\n\n\n
  47. “Eurojet EJ200”<\/em><\/a>. MTU Aero Engines.<\/em><\/li>\n\n\n\n
  48. “General Electric F404”<\/em><\/a>. Purdue University.<\/em><\/li>\n\n\n\n
  49. “Rolls-Royce Conway”<\/em><\/a>. Shannon Aviation Museum.<\/em><\/li>\n\n\n\n
  50. “General Electric F414”<\/em><\/a>. MTU Aero Engines.<\/em><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    \u4e2d\u6587\u8bcd\u6761\u539f\u6587\u94fe\u63a5\uff08\u65e0\u6cd5\u4ece\u4e2d\u56fd\u5185\u5730\u8bbf\u95ee\uff09\uff1a\u8bf7\u70b9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[155,101],"class_list":["post-2789","post","type-post","status-publish","format-standard","hentry","category-aviation","tag-155","tag-101"],"_links":{"self":[{"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/posts\/2789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/comments?post=2789"}],"version-history":[{"count":0,"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/posts\/2789\/revisions"}],"wp:attachment":[{"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/media?parent=2789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/categories?post=2789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cathayvista.top\/index.php\/wp-json\/wp\/v2\/tags?post=2789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}