کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
500589 | 863096 | 2006 | 44 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The performance of local absorbing boundary conditions for acoustic scattering from elliptical shapes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The performance of local absorbing boundary conditions for acoustic scattering from elliptical shapes The performance of local absorbing boundary conditions for acoustic scattering from elliptical shapes](/preview/png/500589.png)
چکیده انگلیسی
The computation of exterior wave problems at low wave numbers can become prohibitively expensive when higher circumferential modes are significant, yet local absorbing boundary conditions specified on simple shapes provide satisfactory performance for most scattering problems. An analysis of the effect of wave number and eccentricity on scattering problems, with local absorbing boundary conditions specified on an ellipse and a prolate spheroid as on-surface radiation conditions, shows that at moderate values of eccentricity, good performance extends to relatively low wave numbers. Excessive computational cost may be avoided for many practical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 195, Issues 29–32, 1 June 2006, Pages 3622–3665
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 195, Issues 29–32, 1 June 2006, Pages 3622–3665
نویسندگان
Robert C. Reiner Jr., Rabia Djellouli, Isaac Harari,