Inscrição na biblioteca: Guest

DEVELOPMENT OF A MEASURING TECHNIQUE FOR THE LOW-WAVENUMBER COMPONENTS OF THE WAVENUMBER-FREQUENCY SPECTRUM OF TURBULENT WALL PRESSURE FLUCTUATIONS

Volume 40, Edição 2, 2009, pp. 241-253
DOI: 10.1615/TsAGISciJ.v40.i2.70
Get accessGet access

RESUMO

The main sources of errors impeding measurement of the wavenumber-frequency spectrum of wall pressure fluctuations of turbulent boundary layers in low-wavenumber regions are analyzed. Such measurements are necessary for the calculation of fuselage skin vibrations related to its inertial excitation, and for the evaluation of noise levels in the cabin caused by these vibrations. The evaluations and the dependencies of flow parameters and the measuring system are obtained for each source of error. Based on models of the wavenumber-frequency spectrum, the author validates the applicability range of different antennas and develops an optimization method of arranging the pressure sensors which enables accurate measurements using the minimum number of transducers both for one- and two-dimensional cases.

Referências
  1. Smolyakov, A. V. and Tkachenko, V. M., Models of the field of pseudo-sound turbulent wall pressures and the corresponding experimental data.

  2. Sherman, C. H., Sung, H. K., and Buehler, B. G., Measurement of the turbulent boundary layer wave-vector spectrum.

  3. Long, D. R., Effect of nozzle geometry on turbofan shock cell noise at cruise.

  4. Hinchin, A. Ya., Theory of the correlation of stationary stochastic processes.

  5. Corcos, G. M., The resolution of turbulent pressures at the wall of boundary layer.

  6. Corcos, G. M., The structure of the turbulent pressure field in boundary-layer flows.

  7. Efimtsov, Â. Ì., Characteristics of a field of wall turbulent fluctuations of pressure at high Reynolds numbers.

  8. Efimtsov, Â. Ì., Similarity criteria of the spectra of wall pressure fluctuation of turbulent boundary layer.

Última edição

KIRILL IVANOVICH SYPALO−50TH ANNIVERSARY NUMERICAL STUDY OF THE DISTURBANCES GENERATED BY MICROJETS IN A SUPERSONIC FLAT-PLATE BOUNDARY LAYER Andrei Valerievich Novikov, Alexander Vitalyevich Fedorov, Ivan Vladimirovich Egorov, Anton Olegovich Obraz, Nikolay Nikolaevich Semenov ANALYSIS OF THE MOVING DETONATION INTERACTION WITH TURBULENT BOUNDARY LAYERS IN A DUCT ON THE BASIS OF NUMERICAL SIMULATION Vladimir Anatolievich Sabelnikov, Vladimir Viktorovich Vlasenko, Sergey Sergeyevich Molev EXPERIMENTAL STUDY OF COUNTERFLOW BLOWING IN HIGH-SPEED FLOW THROUGH AN ASYMMETRIC SLOT IN THE LEADING EDGE OF A SHARP WEDGE Eduard Borisovich Vasilevskii, Ivan Valeryevich Ezhov, Pavel Vladimirovich Chuvakhov ASYMPTOTIC SOLUTIONS TO HYPERSONIC BOUNDARY LAYER EQUATIONS ON A FLAT WING WITH A POINT OF INFLECTION ON THE LEADING EDGE Georgiy Nikolaevich Dudin, Aleksey Vyacheslavovich Ledovskiy WAVE MODEL OF ORGANIZED STRUCTURES IN A TURBULENT BOUNDARY LAYER ON A PLATE WITH ZERO LONGITUDINAL PRESSURE GRADIENT Vladimir Alekseevich Zharov, Igor Ivanovich Lipatov, Rami Salah Saber Selim NUMERICAL SIMULATION OF THE FLOW AROUND LANDSCAPE FRAGMENTS AND SOLUTION VERIFICATION Viktor Viktorovich Vyshinsky, Koang T'in' Zoan POLYNOMIAL REPRESENTATION OF THERMODYNAMIC PROPERTIES OF COMBINED FUEL SYSTEMS IN RAMJET SIMULATION MODELS Timur Romanovich Zuev, Mikhail Semenovich Tararyshkin A MODEL TEST METHODOLOGY FOR THE INVESTIGATION OF AN ELASTICALLY SCALED MAIN ROTOR Maxim Andreyevich Ledyankin , Sergey Anatolyevich Mikhailov, Dmitry Valeryevich Nedel'ko, Timur Arturovich Agliullin INDEX, VOLUME 51, 2020
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa Políticas de preços e assinaturas Begell House Contato Language English 中文 Русский Português German French Spain