Analysis of hot-wire measurements accuracy in turbulent boundary layer

• Autorzy: Dróżdż A. , Elsner W.
• Konferencja: International Symposium on Compressor & Turbine Flow Systems Theory & Application Areas "SYMKOM" (11 ; 20-23.10.2014 ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

The paper discusses the problem of measuring velocity fluctuations of turbulent boundary layer using hot-wire probes. The study highlighted the problem of spatial resolution, which is essential when measuring small-scale in wall-bounded flows. Additionally, the attention was paid to the inconsistency in streamwise fluctuation measurements using single and X-wire probes. To clarify this problem the energy spectra using wavelet transformation were calculated. The analysis was performed for turbulent boundary layer flow, which was characterized by the Reynolds number based on the friction velocity equal Re_Ʈ≈1000.

Słowa kluczowe

EN

turbulent boundary layer; hot wire; spatial resolution; energy spectra

PL

warstwa graniczna; rozkład przestrzenny; widmo energii

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2014
• Tom: nr 145
• Strony: 39--40
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Dróżdż A.

• Czestochowa University of Technology Armii Krajowej 21, 42-201 Czestochowa, Poland

autor

Elsner W.

• Czestochowa University of Technology Armii Krajowej 21, 42-201 Czestochowa, Poland

Bibliografia

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