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A Measured Power Spectrum Of The Vertical Component Of Atmospheric Turbulence
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Book Synopsis A Measured Power Spectrum of the Vertical Component of Atmospheric Turbulence by : Aeronautical Research Council
Download or read book A Measured Power Spectrum of the Vertical Component of Atmospheric Turbulence written by Aeronautical Research Council and published by . This book was released on 1960 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measured Power Spectrum of the Vertical Component of Atmospheric Turbulence by : Aeronautical Research Council
Download or read book A Measured Power Spectrum of the Vertical Component of Atmospheric Turbulence written by Aeronautical Research Council and published by . This book was released on 1960 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Spectra of the Vertical Component of Atmospheric Turbulence Obtained from Concurrent Measurements on an Aircraft and at Fixed Points by : Aeronautical Research Council (Great Britain)
Download or read book Power Spectra of the Vertical Component of Atmospheric Turbulence Obtained from Concurrent Measurements on an Aircraft and at Fixed Points written by Aeronautical Research Council (Great Britain) and published by . This book was released on 1963 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Papers written by and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Spectra of the Vertical Component of Atmospheric Turbulence Obtained from Concurrent Measurements on an Aircraft and at Fixed Points by : A. Burns
Download or read book Power Spectra of the Vertical Component of Atmospheric Turbulence Obtained from Concurrent Measurements on an Aircraft and at Fixed Points written by A. Burns and published by . This book was released on 1960 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Spectral Measurements of Clear-air Turbulence to Long Wavelengths for Altitudes Up to 14,000 Meters by : Harold N. Murrow
Download or read book Power Spectral Measurements of Clear-air Turbulence to Long Wavelengths for Altitudes Up to 14,000 Meters written by Harold N. Murrow and published by . This book was released on 1982 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ˜Aœ Measured Power Wpectrum of the Vertical Component of Atmospheric Turbulence by : J. K. Zbrożek
Download or read book ˜Aœ Measured Power Wpectrum of the Vertical Component of Atmospheric Turbulence written by J. K. Zbrożek and published by . This book was released on 1960 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Spectral Measurement of Atmospheric Turbulence in Severe Storms and Cumulus Clouds by : Richard H. Rhyne
Download or read book Power Spectral Measurement of Atmospheric Turbulence in Severe Storms and Cumulus Clouds written by Richard H. Rhyne and published by . This book was released on 1964 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Low Altitude Atmospheric Turbulence Data Measured in Flight by : Victor M. Ganzer
Download or read book Analysis of Low Altitude Atmospheric Turbulence Data Measured in Flight written by Victor M. Ganzer and published by . This book was released on 1977 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spanwise Measurements of Vertical Components of Atmospheric Turbulence by : Robert K. Sleeper
Download or read book Spanwise Measurements of Vertical Components of Atmospheric Turbulence written by Robert K. Sleeper and published by . This book was released on 1990 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characteristics of Vertical and Lateral Tunnel Turbulence Measured in Air in the Langley Transonic Dynamics Tunnel by :
Download or read book Characteristics of Vertical and Lateral Tunnel Turbulence Measured in Air in the Langley Transonic Dynamics Tunnel written by and published by . This book was released on 1993 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781730871177 Total Pages :72 pages Book Rating :4.8/5 (711 download)
Book Synopsis Spanwise Measurements of Vertical Components of Atmospheric Turbulence by : National Aeronautics and Space Adm Nasa
Download or read book Spanwise Measurements of Vertical Components of Atmospheric Turbulence written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Correlation and spectrum magnitude estimates are computed for vertical gust velocity measurements at the nose and wing tips of a NASA B-57B aircraft for six level flight, low speed and low altitude runs and are compared with those of the von Karman atmospheric turbulence model extended for spanwise relationships. The distance between the wing tips was 62.6 ft. Airspeeds ranged from about 330 to 400 ft/sec, heights above the ground ranged from near ground level to about 5250 ft. and gust velocity standard deviations ranged from 4.10 to 8.86 ft/sec. Integral scale lengths, determined by matching measured autocorrelation estimates with those of the model, ranged from 410 to 2050 ft. Digital signals derived from piezoelectric sensors provided continuous pressure and airspeed measurements. Some directional acceleration sensitivity of the sensors was eliminated by sensor orientation, and their performance was spectrally verified for the higher frequencies with supplemental onboard piezoresistive sensors. The model appeared to satisfactorily predict the trends of the measured cross-correlations and cross-spectrum magnitudes, particularly between the nose and wing tips. However, the measured magnitude estimates of the cross-spectra between the wing tips exceeded the predicted levels at the higher frequencies. Causes for the additional power across the wing tips were investigated. Vertical gust velocity components evaluated along and lateral to the flight path implied that the frozen-turbulence-field assumption is a suitable approximation. Sleeper, Robert K. Langley Research Center...
Book Synopsis Some Measurements of Atmospheric Turbulence Obtained from Flow-direction Vanes Mounted on an Airplane by : Robert G. Chilton
Download or read book Some Measurements of Atmospheric Turbulence Obtained from Flow-direction Vanes Mounted on an Airplane written by Robert G. Chilton and published by . This book was released on 1954 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The power spectrum of relatively short wavelength turbulence in the atmosphere was calculated from measurements made in flight. The range of wavelengths covered by these measurements was from 10 feet to 200 feet. The power spectral density varies with the square of the wavelength of the turbulence. This variation is in general agreement with the high-frequency asymptote of the spectrum form generally assumed for isotropic turbulence. Flow-direction vanes were used to measure the vertical and horizontal components of gust velocity normal to the flight direction. The power spectral densities of the two components are, for practical purposes, equal. The use of vanes is shown to afford a simple, direct method of obtaining the power spectral density of atmospheric turbulence in the relatively high frequency range of airplane response.
Book Synopsis Measurements of Atmospheric Turbulence Over a Wide Range of Wavelength for One Meteorological Condition by : Harold L. Crane
Download or read book Measurements of Atmospheric Turbulence Over a Wide Range of Wavelength for One Meteorological Condition written by Harold L. Crane and published by . This book was released on 1956 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for obtaining a power spectrum of gust vertical velocity over a wide range of wavelength from simultaneous measurements made in flight has been devised and applied. This method has the advantage of not involvhg the use of airplane transfer functions. A gust vertical velocity spectrum was determined for one meteorological condition for wavelengths from 10 feet to 60,000 feet. The test was conducted at low altitude in clear- turbulence having a root-mean-square intensity of 5 feet per second. At the higher frequencies (shorterwavelengths), the power spectral density varied at a rate which was between the -5/3 power which has been predicted theoretically and the inverse square of the frequency. The spectrum which was obtained tended to flatten out for the longest test wavelengths.The break frequency which provides an indication of the scale of the turbulence occurred at a wavelength of approximately 6,000 feet. The results obtained indicate that the method of obtaining spectra used in this investigation is practicable.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722766122 Total Pages :70 pages Book Rating :4.7/5 (661 download)
Book Synopsis Spanwise Measurements of Vertical Components of Atmospheric Turbulence by : National Aeronautics and Space Administration (NASA)
Download or read book Spanwise Measurements of Vertical Components of Atmospheric Turbulence written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-10 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Correlation and spectrum magnitude estimates are computed for vertical gust velocity measurements at the nose and wing tips of a NASA B-57B aircraft for six level flight, low speed and low altitude runs and are compared with those of the von Karman atmospheric turbulence model extended for spanwise relationships. The distance between the wing tips was 62.6 ft. Airspeeds ranged from about 330 to 400 ft/sec, heights above the ground ranged from near ground level to about 5250 ft. and gust velocity standard deviations ranged from 4.10 to 8.86 ft/sec. Integral scale lengths, determined by matching measured autocorrelation estimates with those of the model, ranged from 410 to 2050 ft. Digital signals derived from piezoelectric sensors provided continuous pressure and airspeed measurements. Some directional acceleration sensitivity of the sensors was eliminated by sensor orientation, and their performance was spectrally verified for the higher frequencies with supplemental onboard piezoresistive sensors. The model appeared to satisfactorily predict the trends of the measured cross-correlations and cross-spectrum magnitudes, particularly between the nose and wing tips. However, the measured magnitude estimates of the cross-spectra between the wing tips exceeded the predicted levels at the higher frequencies. Causes for the additional power across the wing tips were investigated. Vertical gust velocity components evaluated along and lateral to the flight path implied that the frozen-turbulence-field assumption is a suitable approximation. Sleeper, Robert K. Langley Research Center...
Book Synopsis The Spectral Structure of Turbulence in a Free Atmosphere Based on Data Obtained by Aircraft by : G. N. Shur
Download or read book The Spectral Structure of Turbulence in a Free Atmosphere Based on Data Obtained by Aircraft written by G. N. Shur and published by . This book was released on 1966 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the basis of the analysis of experimental data on turbulence obtained by a TU-104 aircraft, this article examines the energy spectrum of the vertical velocity component of turbulent gusts in a temperature-stratified atmosphere. The relationship between the spectra of the vertical and horizontal component in a stably stratified atmosphere is also examined. The measurements of the gust loads in a narrow band of frequencies (wave numbers) make it possible to obtain the dispersions in the velocities of gusts in a wide range of scales.
Book Synopsis Representation and Calculation of the Spectral Density of the Field of Atmospheric Turbulence Based on the Results of Aircraft Flight Tests by : André Raymond
Download or read book Representation and Calculation of the Spectral Density of the Field of Atmospheric Turbulence Based on the Results of Aircraft Flight Tests written by André Raymond and published by . This book was released on 1964 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
