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Paper Abstract and Keywords
Presentation 2017-04-27 13:50
Three-Dimensional Finite Difference Time-Domain Analysis of Parametric Speaker
Takao Tsuchiya (Doshisha Univ.), Hideyuki Nomura (UEC) US2017-6
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, the three-dimensional numerical simulation of a parametric
speaker is carried out. To simulate the secondary sound field of difference frequency, the Westervelt equation is numerically solved by the nterpolated wideband (IWB) scheme which is one of the compact explicit finite-difference time-domain (CE-FDTD) method whose cut-off frequency is in agreement with the Nyquist frequency. Some numerical demonstrations are made for the nonlinear sound wave propagation in three dimensional models of various domain size or grid size. Comparing with KZK solutions, it is found that the numerical accuracy of the FDTD solutions decrease in the case of small domain size for low difference frequency or coarse grid size for high difference frequency.
Keyword (in Japanese) (See Japanese page) 
(in English) Parametric speaker / CE-FDTD method / KZK equations / GPU cluster / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 14, US2017-6, pp. 27-32, April 2017.
Paper # US2017-6 
Date of Issue 2017-04-20 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2017-6

Conference Information
Committee US  
Conference Date 2017-04-27 - 2017-04-27 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To US 
Conference Code 2017-04-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Three-Dimensional Finite Difference Time-Domain Analysis of Parametric Speaker 
Sub Title (in English)  
Keyword(1) Parametric speaker  
Keyword(2) CE-FDTD method  
Keyword(3) KZK equations  
Keyword(4) GPU cluster  
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1st Author's Name Takao Tsuchiya  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Hideyuki Nomura  
2nd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2017-04-27 13:50:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2017-6 
Volume (vol) vol.117 
Number (no) no.14 
Page pp.27-32 
#Pages 6 
Date of Issue 2017-04-20 (US) 

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