Download or read book Spectra of Internal Waves and Turbulence in Stratified Fluids Part I General Discussion and Indications from Measurements in Stably Stratified Atmosphere and Ocean written by Yih-Ho Pao and published by . This book was released on 1969 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unified spectral description of internal waves and turbulence in stably stratified atmosphere and ocean is proposed. We envisage that the fluctuating motions in a free atmosphere with scales smaller than the synoptic scale consist of internal waves and turbulence. At low wavenumbers, internal waves predominate; this range of wavenumbers may be called the internal wave subrange. The internal waves can be identified from the characteristics of velocity-scalar co-spectra and quadrature-spectra, as shown recently by Pao in a laboratory experiment. When the internal waves are sufficiently strong and distinct, the different harmonics of internal waves may present themselves in the auto-spectra of velocity and temperature, where the peaks and valleys are clearly identifiable. This, we believe, explains the presence of peaks and valleys in some velocity auto-spectra of clear air turbulence measured in strongly stratified regions of the atmosphere. At intermediate wavenumbers (buoyant subrange), the buoyancy effect is still strong but the turbulent scrambling process becomes important; the higher-order harmonics of internal waves are no longer distinct and cannnot be detected in the auto-spectra. (Author).
Download or read book Spectra of Internal Waves and Turbulence in Stratified Fluids General discussion and indications from measurements in stably stratified atmosphere and ocean written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectra of Internal Waves and Turbulence in Stratified Fluids written by Yih-Ho Pao and published by . This book was released on 1969 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1969 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1969-10 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1976 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1970 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1970 with total page 1754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio Science written by and published by . This book was released on 1969 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectra of Internal Waves and Turbulence in Stratified Fluids Part 2 Experiments on the Breaking of Internal Waves in a Two fluid System written by J. Michael Hall and published by . This book was released on 1969 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The breaking of internal waves on a sloping surface in a two-fluid system is studied experimentally in a wave tank. The characteristics of breaking internal waves are examined through their frequency spectra for cases of different frequency, amplitude, and wavelength. Wave height measurements are made with capacitance probes in conjunction with a recently developed capacitance bridge and are processed by computer utilizing the Cooley-Tukey fast Fourier transform algorithm. Use of a direct, on-line computer system enables spectra to be computed with a high degree of accuracy and a very narrow bandwidth. Spectra measured in the breaking region of the tank reveal a series of sharp peaks in the low frequency range representing the different harmonics of the internal waves. These higher modes, which possess little or no energy in the incident wave, gain energy at the expense of the lowest mode as the wave train propagates over the sloping surface. The result is a transfer of energy to higher frequencies through growth of the harmonics, each gaining energy at the expense of lower modes and transferring it to higher modes. At higher frequencies, the spectra no longer possess these distinct harmonics. The high frequency end of the spectrum in the breaking region has a slope of approximately -3 for all cases considered. (Author).
Download or read book Flight Assessment of an Atmospheric Turbulence Measurement System with Emphasis on Long Wavelengths written by Richard H. Rhyne and published by . This book was released on 1976 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book written by and published by . This book was released on 1980 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectra of Internal Waves and Turbulence in Stratified Fluids Experiments on the breaking of internal waves in a two fluid system written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1969 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1969 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Qualitative Assessment of a Random Process Proposed as an Atmospheric Turbulence Model written by and published by . This book was released on 1977 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1969 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
