| Presentation | 2008-01-28 Dependence of Calculation Accuracy on Timestep in Numerical Simulation of Acoustic Field Using the CIP Method Masahito KONNO, Kan OKUBO, Takao TSUCHIYA, Norio TAGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CIP method / large CFL number / sound wave propagation / the method of characteristics / timestep |
| Paper # | US2007-90,EA2007-96 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2008/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| 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 |
| 1st Author's Name | Masahito KONNO |
| 1st Author's Affiliation | Faculty of System Design, Tokyo Metropolitan University() |
| 2nd Author's Name | Kan OKUBO |
| 2nd Author's Affiliation | Faculty of System Design, Tokyo Metropolitan University |
| 3rd Author's Name | Takao TSUCHIYA |
| 3rd Author's Affiliation | Doshisha University |
| 4th Author's Name | Norio TAGAWA |
| 4th Author's Affiliation | Faculty of System Design, Tokyo Metropolitan University |
| Date | 2008-01-28 |
| Paper # | US2007-90,EA2007-96 |
| Volume (vol) | vol.107 |
| Number (no) | 469 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |