Title: Creation of recombination corrective algorithm for research of a wind tunnel parameters
Other Titles: Tvorba opravného algoritmu pro tlaková měření ve větrném tunelu
Authors: Yanovych, Vitalii
Duda, Daniel
Horáček, Vít
Uruba, Václav
Citation: YANOVYCH, V., DUDA, D., HORÁČEK, V., URUBA, V. Creation of recombination corrective algorithm for research of a wind tunnel parameters. In: AIP Conference Proceedings. Liptovský Mikuláš: American Institute of Physics Inc., 2019. s. 030050-1-030050-6. ISBN 978-0-7354-1858-5 , ISSN 0094-243X.
Issue Date: 2019
Publisher: American Institute of Physics Inc.
Document type: konferenční příspěvek
conferenceObject
URI: 2-s2.0-85068372147
http://hdl.handle.net/11025/36800
ISBN: 978-0-7354-1858-5
ISSN: 0094-243X
Keywords: Aerodynamický tunel, tunel, proudové pole
Keywords in different language: Wind tunnels, Tunnels, Flow fields
Abstract: The blown down wind tunnel tube has been developed. It provides a high degree of air flow laminarization. The uniqueness of this design is the presence of a system of air vortices destruction. This system contains a complex of metal grids, honeycomb straightener and contraction nozzle. The combination of these elements allows for low turbulence level and promote the air flow relative to its axis. The complex of measuring equipment for the establishment of operational characteristics in the test section has been performed. A four-channel probe has been developed to analyze the total pressure and air flow velocity in the measuring tunnel area. The design of this probe makes possible to analyze the boundary layers of air flow in a wind tunnel. The corrective algorithm of recombination for the obtained data and software for their analysis is developed. A prerequisite for developing an algorithm for the recombination of the obtained data and their subsequent visualization is the idea of sectoral analysis and averaging of the data of common areas of the measuring area. Besides the developed algorithm, the correction function for leveling the aerodynamic resistance of the design of the four-channel probe was included. Whereas it approaches the nozzle of static pressure, there is a distortion of the real data distribution on each of the probe tube. To confirm the adequacy of the developed algorithm and the correct functioning of the software developed on its basis, a series of experimental studies was conducted, which were based on the measurement of total pressure when placing objects that create aerodynamic resistance in the measuring section. A profile analysis of the data allowed to visualize correctly the distribution of total pressure around the investigated bodies, even in the place of its sharp difference.
Rights: Plný text není přístupný. Plný text bude přístupný od 27.06.2020.
© American Institute of Physics Inc.
Appears in Collections:Konferenční příspěvky / Conference papers (KKE)
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