MARC 主機 00000nam a2200505 i 4500 
001    978-3-319-19959-7 
003    DE-He213 
005    20160127093536.0 
006    m     o  d         
007    cr nn 008maaau 
008    150615s2015    gw      s         0 eng d 
020    9783319199597 (electronic bk.) 
020    9783319199580 (paper) 
024 7  10.1007/978-3-319-19959-7|2doi 
040    GP|cGP|erda|dAS 
041 0  eng 
050  4 TL574.N6 
082 04 629.1323|223 
100 1  Ayton, Lorna,|eauthor 
245 10 Asymptotic approximations for the sound generated by 
       aerofoils in unsteady subsonic flows /|cby Lorna Ayton 
264  1 Cham :|bSpringer International Publishing :|bImprint: 
       Springer,|c2015 
300    1 online resource (xxi, 178 pages) :|billustrations, 
       digital ;|c24 cm 
336    text|btxt|2rdacontent 
337    computer|bc|2rdamedia 
338    online resource|bcr|2rdacarrier 
347    text file|bPDF|2rda 
490 1  Springer theses,|x2190-5053 
505 0  High-Frequency Sound Generated by Sound-Aerofoil 
       Interaction in Subsonic Uniform Flow -- High-Frequency 
       Sound Generated by Gust-Aerofoil Interaction in Subsonic 
       Uniform Flow -- High-Frequency Sound Generated by Gust-
       Aerofoil Interaction in Subsonic Shear Flow -- Leading-
       Edge Stagnation-Point Noise Generated by Turbulence in 
       Subsonic Uniform Flow -- Concluding Remarks and Further 
       Work 
520    This thesis investigates the sound generated by solid 
       bodies in steady subsonic flows with unsteady 
       perturbations, as is typically used when determining the 
       noise generated by turbulent interactions. The focus is 
       predominantly on modelling the sound generated by blades 
       within an aircraft engine, and the solutions are presented
       as asymptotic approximations. Key analytical techniques, 
       such as the Wiener-Hopf method, and the matched asymptotic
       expansion method are clearly detailed. The results allow 
       for the effect of variations in the steady flow or blade 
       shape on the noise generated to be analysed much faster 
       than when solving the problem numerically or considering 
       it experimentally 
650  0 Aerodynamic noise|xMathematical models 
650  0 Aerofoils|xResearch 
650  0 Unsteady flow (Aerodynamics)|xMathematical models 
650 14 Physics 
650 24 Acoustics 
650 24 Engineering Acoustics 
650 24 Mathematical Methods in Physics 
650 24 Mathematical Modeling and Industrial Mathematics 
710 2  SpringerLink (Online service) 
773 0  |tSpringer eBooks 
830  0 Springer theses 
856 40 |uhttp://dx.doi.org/10.1007/978-3-319-19959-7
       |zeBook(Springerlink)