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51篇 您的检索式:作者名="Wakaki"
    题名 作者 年代 出处 被引量
1Study on Rotational Frequency Noise in a Centrifugal Compressor for Automobile Turbochargers显示文摘The rotational frequency noise(also known as the pulsation noise) due to the mistuning of impeller blade rows introduced at the manufacturing stage of the impellers is observed in the small-sized centrifugal compressor for automobile turbochargers. The present paper addresses the elucidation of the generating mechanism and parameter dependency such as the kind and degree of mistuning. In order to analyze numerically the rotational frequency noise due to mistuning, the unsteady computational fluid dynamics(CFD) of the whole compressor including volute is executed, and the resultant time history of the pressure is fed into the spectral analysis.Daichi Wakaki Yuta Sakuka Nobuhiko Yamasaki Akihiro Yamagata 2014Journal of Thermal Science2014,23,1:3
2CFD Simulation of Pulsation Noise in a Small Centrifugal Compressor with Volute and Resonance Tube显示文摘The rotational frequency tone noise emitted from the automobile turbocharger is called the pulsation noise. The cause of the pulsation noise is not fully understood, but is considered to be due to some manufacturing errors, which is called the mistuning. The effects of the mistuning of the impeller blade on the noise field inside the flow passage of the compressor are numerically investigated. Here, the flow passage includes the volute and duct located downstream of the compressor impeller. Our numerical approach is found to successfully capture the wavelength of the pulsation noise at given rotational speeds by the comparison with the experiments. One of the significant findings is that the noise field of the pulsation noise in the duct is highly one-dimensional although the flow fields are highly three-dimensional.Daich Wakaki Yuta Sakuka Yuzo Inokuchi Kosuke Ueda Nobuhiko Yamasaki Akihiro Yamagata 2015Journal of Thermal Science2015,24,1:2
3Optical characteristics of Al2O3 ceramics doped with Cr at high concentrations prepared by extrusion molding process 显示文摘Murotani H Mituda T Wakaki M 2000Jan J Appl Phy2000,39,:1
4Asymptotic results of a high dimensional MANOVA test and power comparisons when the dimension is large compared to the sample size显示文摘Fujikoshi Y Himeno T Wakaki H 2004Journal of Japan Statistical Society2004,34,:1
5Stability of lutein and its myristate esters显示文摘Subagio A Wakaki H Morita N 1999Bioscience Biotechnology and Biochem- istry1999,63,:1
6Henoch-Schonleinpurpura nephritis with nephrotic state in children : predictors ofpoor outcomes 显示文摘Wakaki H Ishikura K Hataya H 2011Pediatr Nephrol2011,26,6:1
7Optical characteristics of Al2O3 ceramics doped with Cr at high concentrations prepared by extrusion molding process显示文摘MUROTANI H MITUDA T WAKAKI M 2000Jan J Appl Phy2000,39,:1
8Animal model of diabetic nephropathy显示文摘Yokozawa T Nakagawa T Wakaki K Koizumi F 2001Exp Toxicol Pathol2001,53,5:1
9Stable isotope analy- sis of Nd by double spike thermal ionization mass spectrometry显示文摘WAKAKI S TANAKA T 2012International Journal of Mass Spectrometry2012,,11:1
10Reversible phase transitions in polymer gels induced by radiation forces 显示文摘Juodkazis S Mukai N Wakaki R 2000Nature2000,408,6809:1
11Tubulointerstitial nephritis and uveitis syndrome with autoantibody directed to renal tubular cells 显示文摘Wakaki H Sakamoto H Awazu M 2001Pediatrics2001,107,6:1
12Fundamental characteristics of a synthesized light source for optical coherence tomography显示文摘Sato Manabu Wakaki Ichiro Watanabe Yuuki 2005Applied optics2005,44,13:1
13Presence of staphylococcal ex- foliative toxin A in sera of patients with atopic deanatitis 显示文摘Yagi S Wakaki N Ikeda N 2004Clin Exp Allergy2004,34,6:1
14Henoch- Sch6nlein purpura nephritis with nephrotic state in children predictors of poor outcomes显示文摘WAKAKI H ISHIKURA K HATAYA H 2011Pediatr Nephrol2011,26,6:1
15Fiber-optic polarizer using birefringent crystal as a cladding 显示文摘Wakaki M Komachi Y Machida H 1996Applied Optics1996,35,15:1
16Optical Charac teristics of Al2O3 Ceramics Doped with Cr at High Concen trations Prepared by Extrusion Molding Process显示文摘Murotani H Mituda T Wakaki M 2000Jpn J Appl Phy2000,39,:1
17Microlenses and microlens arrays formed on glass plate by use of a CO2 laser显示文摘 1998Applied Optics1998,37,4:1
18Tubulointerstitial nephritis and uveitis syndrome with autoantibody directed to renal tubular cells显示文摘Wakaki H Sakamoto H Awazu M 2001Pediatrics2001,107,:1
19Animal model of diabetic nephropathy显示文摘Yakozawa T Nakagawa T Wakaki K 2001Exp Toxicol pathol2001,53,:1
20Fiber-optic polarizer using birefringent crystal as a cladding显示文摘 KOMACHI Y MACHIDA H 1996Applied Optics1996,35,15:1
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