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SKALAR DALG A PROBLEMLERİNİN ÇÖZÜMÜNDE ZAMAN-DOMENİ SINIR ELEMANI METODU

THE TIME DOMAIN BOUNDARY ELEMENT METHOD FOR SCALAR WAVE PROBLEMS

Journal Name:

  • Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Publication Year:

  • 2003

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
This paper deals with the stability of the boundary element method. The effects of various element sizes and time increments on the internal solution are analyzed. To this end, a time domain boundary element method is used. To achieve this, an existing BEM code for the boundary nodes is modified to optional internal nodes. Using appropriate time and spatial variations for the field variables, some observations on the numerical stability are reported. The internal solutions are presented for different p values and discussed the reasons of unstable cases appeared.
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Abstract (Original Language): 
Bu makale Sınır Elemanı Metodunun (SEM) kararlılığını konu edinir. Farklı boyutlardaki elemanların ve değişik zaman artımlarının dahili çözüm üzerindeki etkileri analiz edilmiştir. Bunun yapılabilmesi için, bir zaman-domeni sınır elemanı metodu kullanılmıştır. Bu çalışma, sınır noktaları için mevcut olan bir SEM programının keyfi sayıdaki dahili noktalara modifiye edilerek başarıya ulaştırılmıştır. Alan değişkenlerinin nümerik hesaplanmasında benimsenen uygun zaman ve geometrik değişimler gözönünde tutularak nümerik kararlılık konusundaki bazı gözlemler kaleme alınmaktadır. Farklı p değerleri için dahili çözümler sunularak ve ortaya çıkan kararsız çözümlerin nedenleri irdelenmiştir.
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  • Turkish

REFERENCES

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