Turbojet Engine Noise Reduction With Mixing Nozzle Ejector Combinations

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Turbojet Engine Noise Reduction with Mixing Nozzle-ejector Combinations

Willard D. Coles,John A. Mihaloew,Edmund E. Callaghan
Turbojet Engine Noise Reduction with Mixing Nozzle ejector Combinations Book PDF

Author : Willard D. Coles,John A. Mihaloew,Edmund E. Callaghan
Publisher : Unknown
Page : 652 pages
File Size : 40,5 Mb
Release : 1958
Category : Airplanes
ISBN : STANFORD:36105024832516

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Turbojet Engine Noise Reduction with Mixing Nozzle-ejector Combinations by Willard D. Coles,John A. Mihaloew,Edmund E. Callaghan Pdf

Several noise suppressors consisting of combinations of mixing nozzles and ejectors were tested on two full-scale turbojet engines. Maximum sound pressure level reductions of 12 decibels and sound power level reductions of 8 decibels were obtained. The ejectors provided 3 to 5 decibels of the sound power reduction. The effects of ejector dimensions on noise suppression and engine performance were investigated. Ejector lengths of approximately 2.0 standard nozzle diameters and ejector diameters larger than 1.6 standard nozzle diameters provided the greatest additional noise reduction to that obtained with the mixing nozzles alone. The ejector can restore the static thrust loss caused by use of the mixing nozzle or can provide static-thrust augmentation.

Technical Note - National Advisory Committee for Aeronautics

United States. National Advisory Committee for Aeronautics
Technical Note National Advisory Committee for Aeronautics Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 1160 pages
File Size : 41,8 Mb
Release : 1958
Category : Aeronautics
ISBN : RUTGERS:39030037544642

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Technical Note - National Advisory Committee for Aeronautics by United States. National Advisory Committee for Aeronautics Pdf

Fundamental Study of Jet Noise Generation and Suppression

W. C. Sperry,Margaret Emmitt
Fundamental Study of Jet Noise Generation and Suppression Book PDF

Author : W. C. Sperry,Margaret Emmitt
Publisher : Unknown
Page : 150 pages
File Size : 40,6 Mb
Release : 1961
Category : Noise
ISBN : UOM:39015095266139

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Fundamental Study of Jet Noise Generation and Suppression by W. C. Sperry,Margaret Emmitt Pdf

U.S. Government Research Reports

Anonim
U S Government Research Reports Book PDF

Author : Anonim
Publisher : Unknown
Page : 638 pages
File Size : 51,5 Mb
Release : 1959
Category : Science
ISBN : OSU:32435022153654

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U.S. Government Research Reports by Anonim Pdf

Research Abstracts and Reclassification Notice

United States. National Advisory Committee for Aeronautics
Research Abstracts and Reclassification Notice Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 716 pages
File Size : 53,7 Mb
Release : 1956
Category : Aeronautics
ISBN : OSU:32435062280276

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Research Abstracts and Reclassification Notice by United States. National Advisory Committee for Aeronautics Pdf

NASA Technical Note

Anonim
NASA Technical Note Book PDF

Author : Anonim
Publisher : Unknown
Page : 458 pages
File Size : 52,9 Mb
Release : 1961
Category : Electronic
ISBN : MINN:319510008457218

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NASA Technical Note by Anonim Pdf

NASA Technical Report

Anonim
NASA Technical Report Book PDF

Author : Anonim
Publisher : Unknown
Page : 430 pages
File Size : 48,5 Mb
Release : 1960
Category : Aerodynamics
ISBN : UCAL:B3534282

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NASA Technical Report by Anonim Pdf

The Theory of Diffusion in Strained Systems

Louis A. Girifalco,Hubert H. Grimes
The Theory of Diffusion in Strained Systems Book PDF

Author : Louis A. Girifalco,Hubert H. Grimes
Publisher : Unknown
Page : 1082 pages
File Size : 45,6 Mb
Release : 1959
Category : Crystals
ISBN : STANFORD:36105024741956

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The Theory of Diffusion in Strained Systems by Louis A. Girifalco,Hubert H. Grimes Pdf

A general theory of solid-state diffusion in strained systems is developed on a molecular-kinetic basis. The theory predicts that for simple strains the diffusion coefficient is an exponential function of the lattice parameter and that the rate of change of the diffusion coefficient with strain is linearly related to the interatomic forces. It has also been shown that for plastic flow the diffusion coefficient is a linear function of strain rate. All the conclusions are confirmed by the data available in the literature.

Approach

Anonim
Approach Book PDF

Author : Anonim
Publisher : Unknown
Page : 52 pages
File Size : 50,9 Mb
Release : 1961
Category : Aeronautics
ISBN : UIUC:30112105099797

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Approach by Anonim Pdf

The naval aviation safety review.

NASA Memorandum

Anonim
NASA Memorandum Book PDF

Author : Anonim
Publisher : Unknown
Page : 20 pages
File Size : 55,8 Mb
Release : 1959
Category : Aeronautics
ISBN : STANFORD:36105024748779

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NASA Memorandum by Anonim Pdf

NASA Memorandum

United States. National Aeronautics and Space Administration
NASA Memorandum Book PDF

Author : United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 26 pages
File Size : 46,8 Mb
Release : 1959
Category : Aeronautics
ISBN : UOM:39015039958296

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NASA Memorandum by United States. National Aeronautics and Space Administration Pdf

Monthly Catalog of United States Government Publications

United States. Superintendent of Documents
Monthly Catalog of United States Government Publications Book PDF

Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 1536 pages
File Size : 47,5 Mb
Release : 1958
Category : Government publications
ISBN : UCR:31210023919044

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Monthly Catalog of United States Government Publications by United States. Superintendent of Documents Pdf

Monthly Catalog of United States Government Publications, Cumulative Index

United States. Superintendent of Documents
Monthly Catalog of United States Government Publications Cumulative Index Book PDF

Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 1300 pages
File Size : 43,5 Mb
Release : 1978
Category : United States
ISBN : STANFORD:36105022657543

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Monthly Catalog of United States Government Publications, Cumulative Index by United States. Superintendent of Documents Pdf