Open AccessTheoretical and experimental investigation on aero-optical effect for a compressible mixing layer
Author(s) -
Caijun Gan,
Lihui Lang,
Handong Ma,
Hongwei Xiong
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.184701
Subject(s) - mach number , mechanics , mixing (physics) , compressibility , reynolds number , compressible flow , materials science , optics , reynolds stress , condensation , physics , thermodynamics , turbulence , quantum mechanics
Using dimensional analysis and experimental technique, the aero-optical effect for a compressible mixing layer around optical side window is investigated. According to the theoretical analysis, we find that time-averaged boresight error increases with the increase of convective Mach number (Mc). Moreover, we also present the relations between time-averaged boresight error (BSE) and Reynolds number, shear stress at interface between mixing layer and free stream, free stream velocity ratio and density ratio. The experimental results from a thin beam light passing through compressible mixing layer verify the theoretical result between time-averaged BSE and Mc.