Kolmogorov's Similarity Hypotheses Application in Research of the Turbulent Swirl Flows in Pipe Generated by the Various Axial Fan Geometries
Apstrakt
Kolmogorov has formulated his two hypotheses of similarity in 1941 considering local-isotropic turbulence, and later has
refined his theory [1, 2]. In this paper are discussed three turbulent swirl flows generated by the three various axial fan types
in-built in the pipe. The spectral characteristics of the generated turbulent swirl flows are determined on the basis on the LDA
(laser Doppler anemometry) experimental data for the circumferential velocity. In the inertial subranges these curves have the
same tangent and obey the “- 5/3” Kolmogorov law. It is shown that in the generated turbulent swirl flows occur eddies of
various scales, encompassing very wide spectra of wave numbers, i.e. frequencies.
Izvor:
Proceedings in Applied Mathematics and Mechanics (PAMM), 2021, 21Izdavač:
- WILEY
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200105 (Univerzitet u Beogradu, Mašinski fakultet) (RS-MESTD-inst-2020-200105)
- Primena savremenih mernih i proračunskih tehnika za izučavanje strujnih parametara ventilacionih sistema na modelu energetski izuzetno efikasnog (pasivnog) objekta (RS-MESTD-Technological Development (TD or TR)-35046)
Napomena:
- Čantrak Đ.S., Janković N.Z., Nedeljković M.S. (2021): Kolmogorov's Similarity Hypotheses Application in Research of the Turbulent Swirl Flows in Pipe Generated by the Various Axial Fan Geometries, PAMM, Vol. 21, Issue 1, 2 pages, Special Issue: 92nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Section: 10, DOI: https://doi.org/10.1002/pamm.202100177, https://onlinelibrary.wiley.com/doi/10.1002/pamm.202100177
URI
https://onlinelibrary.wiley.com/doi/10.1002/pamm.202100177https://machinery.mas.bg.ac.rs/handle/123456789/6352
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Čantrak, Đorđe AU - Janković, Novica AU - Nedeljković, Miloš PY - 2021 UR - https://onlinelibrary.wiley.com/doi/10.1002/pamm.202100177 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6352 AB - Kolmogorov has formulated his two hypotheses of similarity in 1941 considering local-isotropic turbulence, and later has refined his theory [1, 2]. In this paper are discussed three turbulent swirl flows generated by the three various axial fan types in-built in the pipe. The spectral characteristics of the generated turbulent swirl flows are determined on the basis on the LDA (laser Doppler anemometry) experimental data for the circumferential velocity. In the inertial subranges these curves have the same tangent and obey the “- 5/3” Kolmogorov law. It is shown that in the generated turbulent swirl flows occur eddies of various scales, encompassing very wide spectra of wave numbers, i.e. frequencies. PB - WILEY T2 - Proceedings in Applied Mathematics and Mechanics (PAMM) T1 - Kolmogorov's Similarity Hypotheses Application in Research of the Turbulent Swirl Flows in Pipe Generated by the Various Axial Fan Geometries VL - 21 DO - 10.1002/pamm.202100177 ER -
@article{ author = "Čantrak, Đorđe and Janković, Novica and Nedeljković, Miloš", year = "2021", abstract = "Kolmogorov has formulated his two hypotheses of similarity in 1941 considering local-isotropic turbulence, and later has refined his theory [1, 2]. In this paper are discussed three turbulent swirl flows generated by the three various axial fan types in-built in the pipe. The spectral characteristics of the generated turbulent swirl flows are determined on the basis on the LDA (laser Doppler anemometry) experimental data for the circumferential velocity. In the inertial subranges these curves have the same tangent and obey the “- 5/3” Kolmogorov law. It is shown that in the generated turbulent swirl flows occur eddies of various scales, encompassing very wide spectra of wave numbers, i.e. frequencies.", publisher = "WILEY", journal = "Proceedings in Applied Mathematics and Mechanics (PAMM)", title = "Kolmogorov's Similarity Hypotheses Application in Research of the Turbulent Swirl Flows in Pipe Generated by the Various Axial Fan Geometries", volume = "21", doi = "10.1002/pamm.202100177" }
Čantrak, Đ., Janković, N.,& Nedeljković, M.. (2021). Kolmogorov's Similarity Hypotheses Application in Research of the Turbulent Swirl Flows in Pipe Generated by the Various Axial Fan Geometries. in Proceedings in Applied Mathematics and Mechanics (PAMM) WILEY., 21. https://doi.org/10.1002/pamm.202100177
Čantrak Đ, Janković N, Nedeljković M. Kolmogorov's Similarity Hypotheses Application in Research of the Turbulent Swirl Flows in Pipe Generated by the Various Axial Fan Geometries. in Proceedings in Applied Mathematics and Mechanics (PAMM). 2021;21. doi:10.1002/pamm.202100177 .
Čantrak, Đorđe, Janković, Novica, Nedeljković, Miloš, "Kolmogorov's Similarity Hypotheses Application in Research of the Turbulent Swirl Flows in Pipe Generated by the Various Axial Fan Geometries" in Proceedings in Applied Mathematics and Mechanics (PAMM), 21 (2021), https://doi.org/10.1002/pamm.202100177 . .