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Paper Abstract and Keywords
Presentation 2014-08-28 10:30
A numerical evaluation in finite difference method with polar represented spacetime domain for acoustical simulation with boundaries
Kota Nakano, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) SIP2014-72
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, a new approach is evaluated for computer-aided acoustical simulation. The approach reduces numerical dispersion Finite-different time-domain (FDTD) method for sound led simulation. The conventional FDTD method causes numerical dispersion. Although our previously proposition reduced the numerical dispersion for FDTD method, it caused spatial periodicity due to periodic extension for discrete Fourier transform. Then the new approach avoids spatial periodicity due to angular-spectra domain calculation in polar-represented space time. Some numerical experiments were conducted, and they indicated the our proposed approach reduces numerical dispersion without spatial periodicity.
Keyword (in Japanese) (See Japanese page) 
(in English) Sound fi eld simulation, / FDTD method / Numerical dispersion / Polar-representation / Space-time domain / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 191, SIP2014-72, pp. 1-6, Aug. 2014.
Paper # SIP2014-72 
Date of Issue 2014-08-21 (SIP) 
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)
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Conference Information
Committee SIP  
Conference Date 2014-08-28 - 2014-08-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Ritsumeikan Univ. (Osaka Umeda Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SIP 
Conference Code 2014-08-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A numerical evaluation in finite difference method with polar represented spacetime domain for acoustical simulation with boundaries 
Sub Title (in English)  
Keyword(1) Sound fi eld simulation,  
Keyword(2) FDTD method  
Keyword(3) Numerical dispersion  
Keyword(4) Polar-representation  
Keyword(5) Space-time domain  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kota Nakano  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Masato Nakayama  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
3rd Author's Name Takanobu Nishiura  
3rd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
4th Author's Name Yoichi Yamashita  
4th Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker Author-1 
Date Time 2014-08-28 10:30:00 
Presentation Time 25 minutes 
Registration for SIP 
Paper # SIP2014-72 
Volume (vol) vol.114 
Number (no) no.191 
Page pp.1-6 
#Pages 6 
Date of Issue 2014-08-21 (SIP) 

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