Indexado em
- Abra o Portão J
- RefSeek
- Universidade de Hamdard
- EBSCO AZ
- OCLC- WorldCat
- publons
- Indexação Científica Internacional
- Euro Pub
- Google Scholar
Links Úteis
Compartilhe esta página
Folheto de jornal
Periódicos de Acesso Aberto
- Agro e Aquicultura
- Alimentos e Nutrição
- Bioinformática e Biologia de Sistemas
- Bioquímica
- Ciência de materiais
- Ciencias ambientais
- Ciências Clínicas
- Ciências Farmacêuticas
- Ciências gerais
- Ciências Médicas
- Cuidados de enfermagem e saúde
- Engenharia
- Genética e Biologia Molecular
- Gestão de negócios
- Imunologia e Microbiologia
- Neurociência e Psicologia
- Química
Abstrato
A 19-Point Average-derivative Optimal Scheme for 3D Frequency-domainScalar Wave Equation
Jing-Bo Chen*
A 27-point optimal scheme for 3D frequency-domain scalar wave equation was recently developed. This scheme includes 9 optimization coefficients, and is relatively complicated. To simplify this scheme, a 19-point average-derivative optimal scheme for 3D frequency-domain scalar wave equation is constructed in this paper. This new 19-point scheme includes only 5 optimization coefficients, but maintains similar advantages of the 27-point optimal scheme. Compared to the classical 7-point scheme, the number of grid points per shortest wavelength is reduced from approximately 13 to approximately 4 by this 19-point optimal scheme for equal directional sampling intervals and unequal directional sampling intervals as well. Two numerical examples are presented to demonstrate the theoretical analysis.