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| Presentation | 2008-01-28 13:30 Dependence of Calculation Accuracy on Timestep in Numerical Simulation of Acoustic Field Using the CIP Method Masahito Konno, Kan Okubo (Tokyo Met. Univ.), Takao Tsuchiya (Doshisha Univ.), Norio Tagawa (Tokyo Met. Univ.)  US2007-90 EA2007-96 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To date, a number of numerical analysis in time domain has been investigated for sound wave propagation. Conventional methods of numerical analysis in time domain define the time-step under the Courant-Friedrichs-Lewy (CFL) condition, i.e. CFL number is smaller than one. On the other hand, by means of both the method of characteristics and the method of Semi-Lagrange, constrained interpolation profile (CIP) scheme allows us to calculate sound wave propagation with CFL number larger than one. In this study, we examine the numerical analysis for acoustic fields using some types of CIP methods with the lager CFL number and evaluate the calculation accuracy and cost. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | CIP method / large CFL number / sound wave propagation / the method of characteristics / timestep / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 467, US2007-90, pp. 7-12, Jan. 2008. | |
| Paper # | US2007-90 | |
| Date of Issue | 2008-01-21 (US, EA) | |
| 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 | US2007-90 EA2007-96 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2008-01-28 - 2008-01-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kansai University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | US |
| Conference Code | 2008-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Dependence of Calculation Accuracy on Timestep in Numerical Simulation of Acoustic Field Using the CIP Method |
| Sub Title (in English) | |
| Keyword(1) | CIP method |
| Keyword(2) | large CFL number |
| Keyword(3) | sound wave propagation |
| Keyword(4) | the method of characteristics |
| Keyword(5) | timestep |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masahito Konno |
| 1st Author's Affiliation | Tokyo Metropolitan University (Tokyo Met. Univ.) |
| 2nd Author's Name | Kan Okubo |
| 2nd Author's Affiliation | Tokyo Metropolitan University (Tokyo Met. Univ.) |
| 3rd Author's Name | Takao Tsuchiya |
| 3rd Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 4th Author's Name | Norio Tagawa |
| 4th Author's Affiliation | Tokyo Metropolitan University (Tokyo Met. Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-01-28 13:30:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2007-90, EA2007-96 |
| Volume (vol) | vol.107 |
| Number (no) | no.467(US), no.469(EA) |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2008-01-21 (US, EA) |
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