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Determination of air and hydrofoil pressure coefficient by laser doppler anemometry
Author(s) -
Slаvicа Ristić,
Mirjana Puharić,
Marina Kutin,
Dušan Matić
Publication year - 2010
Publication title -
theoretical and applied mechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.279
H-Index - 6
eISSN - 2406-0925
pISSN - 1450-5584
DOI - 10.2298/tam1001017r
Subject(s) - laser doppler velocimetry , mechanics , cavitation , computational fluid dynamics , flow visualization , materials science , airplane , laser , acoustics , optics , physics , flow (mathematics) , medicine , blood flow , composite material
Some results of experiments performed in water cavitation tunnel are presented. Pressure coefficient (Cp) was experimentally determined by Laser Doppler Anemometry (LDA) measurements. Two models were tested: model of airplane G4 (Super Galeb) and hydrofoil of high speed axial pump. These models are not prepared for conventional pressure measurements, so that LDA is applied for Cp determination. Numerical results were obtained using a code for average Navier-Stokes equations solutions. Comparisons between computational and experimental results prove the effectiveness of the LDA. The advantages and disadvantages of LDA application are discussed. Flow visualization was made by air bubbles

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