Aerodynamic drag of a single cam shaped tubes and visualization of flow

Authors

  • Александр Михайлович Терех National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine
  • Александр Игоревич Руденко National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine
  • Юлия Владимировна Жукова Institute of Heat and Mass-transfer named A. V. Lukov NAS Belarus str. Brovki, 15, 220072, Minsk, Republic of Belarus, Belarus
  • Александр Владимирович Семеняко National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine
  • Вадим Анатольевич Кондратюк National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2012.5803

Keywords:

tube, drop-shaped, circular, aerodynamics, drag, flow, visualization

Abstract

The article is dedicated to the aerodynamic drag and flow visualization on the little-studied complex profiled drop-shaped surfaces. The experiments were held in a wind tunnel of open type of rectangular cross section over the range of Reynolds numbers 9,000 to 45,000. The flow visualization on the surface of the samples studied was carried out by means of injection of black-kerosene suspension in the flow. The findings showed that drop-shaped tubes have significantly lower aerodynamic drag compared to the pipes of circular cross-section. In their turn, the "direct" drop aerodynamic drag at D <38 mm is always lower than the "inverse" drops. The results of the research can serve as a basis for further studies related to the optimization of the geometric dimensions of tube profiles for various heat exchangers of highly heat aerodynamic efficiency

Author Biographies

Александр Михайлович Терех, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

PhD, Senior Researcher

Chair of nuclear power plants and engineering thermophysics

Александр Игоревич Руденко, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

PhD, associate professor

Chair of economy and enterprise

Юлия Владимировна Жукова, Institute of Heat and Mass-transfer named A. V. Lukov NAS Belarus str. Brovki, 15, 220072, Minsk, Republic of Belarus

PhD, Senior Researcher

Laboratory of turbulence

Александр Владимирович Семеняко, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

Assistant

Chair of nuclear power plants and engineering thermophysics

Вадим Анатольевич Кондратюк, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

Post-graduate student

Chair of nuclear power plants and engineering thermophysics

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Published

2012-12-18

How to Cite

Терех, А. М., Руденко, А. И., Жукова, Ю. В., Семеняко, А. В., & Кондратюк, В. А. (2012). Aerodynamic drag of a single cam shaped tubes and visualization of flow. Eastern-European Journal of Enterprise Technologies, 6(8(60), 63–68. https://doi.org/10.15587/1729-4061.2012.5803

Issue

Vol. 6 No. 8(60) (2012): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

License

Copyright (c) 2014 Александр Михайлович Терех, Александр Игоревич Руденко, Юлия Владимировна Жукова, Александр Владимирович Семеняко, Вадим Анатольевич Кондратюк

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