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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN 印刷: 1065-3090
ISSN オンライン: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v13.i2.30
pages 133-152

RESEARCH INTO NONISOTHERMAL JETS FROM VENTILATING OUTLETS USING A MACH-ZEHNDER INTERFEROMETER

Milan Pavelek
Department of Thermomechanics and Environmental Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2, 616 69 Brno, Czech Republic
E. Janotkova
Department of Thermomechanics and Environmental Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2, 616 69 Brno, Czech Republic

要約

This paper deals with the application of interferometry in research on nonisothermal air jets. The research was carried out using scale models with a Mach-Zehnder interferometer and our own software, Interfer−Visual. The paper contains examples of visualized non-isothermal jets from outlets in free spaces and spaces containing barriers. The results comprise interferograms of jets and flow fields, which provide both qualitative and quantitative information about air jets. The focus is above all on the evaluation of air jet shapes, temperatures in jets and enthalpy in jets, allowing the specification of many other parameters. The data obtained are useful for a more profound understanding of air jets, as well as for practical use in the field of ventilation, air conditioning and warm-air heating.


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