Redirigiendo al acceso original de articulo en 23 segundos...
Inicio  /  Applied Sciences  /  Vol: 14 Par: 4 (2024)  /  Artículo
ARTÍCULO
TITULO

Research on the Time-Domain Explicit and Implicit Solution Methods of the Shallow Water Seismic Wavefield Equations

Weihao Cao    
Guangli Cheng    
Bao Liu and Yangfan Cai    

Resumen

The current time-domain solution methods for the wavefield equations of a single medium do not apply to the wavefield equations of shallow water seismic with a fluid?elastomer coupling. To solve this problem, based on the explicit central difference method and implicit Newmark method, the explicit?explicit method, implicit?implicit method, and explicit?implicit method time-domain expressions for the local solution are derived, and the time-domain expressions for the explicit and implicit methods in the global solution are derived.The stability and computational efficiency of different time-domain solving methods for the shallow water seismic wavefield equations are theoretically analyzed. The numerical results are compared with the simulation data from the multiphysics field simulation software COMSOL 6.0, and the numerical stability, computational efficiency and accuracy of the different solving methods are also analyzed theoretically. The results show that the implicit method in the global solution is relatively optimal among the methods proposed in this paper, which ensures numerical stability at the larger step size for improving the computational efficiency and considers the higher computational efficiency and accuracy.

 Artículos similares

       
 
Rui Li, Dongdong Ye, Qiukun Zhang, Jianfei Xu and Jiabao Pan    
Thermal barrier coatings (TBCs) play a crucial role in safeguarding aero-engine blades from high-temperature environments and enhancing their performance and durability. Accurate evaluation of TBCs? porosity is of paramount importance for aerospace mater... ver más
Revista: Applied Sciences

 
Ana-Luiza Rusnac and Ovidiu Grigore    
In recent years, a lot of researchers? attentions were concentrating on imaginary speech understanding, decoding, and even recognition. Speech is a complex mechanism, which involves multiple brain areas in the process of production, planning, and precise... ver más
Revista: Applied Sciences

 
Denis Vrazhnov, Anastasia Knyazkova, Maria Konnikova, Oleg Shevelev, Ivan Razumov, Evgeny Zavjalov, Yury Kistenev, Alexander Shkurinov and Olga Cherkasova    
In this research, an experimental U87 glioblastoma small animal model was studied. The association between glioblastoma stages and the spectral patterns of mouse blood serum measured in the terahertz range was analyzed by terahertz time-domain spectrosco... ver más
Revista: Applied Sciences

 
Xing Zheng, Tianyin Zhang, Zhenhong Hu and Gang Ma    
Offshore wind energy resources far exceed those on land. However, the increase in water depth of the continental shelf in China?s sea area slows down as the distance from the shore increases. In view of the characteristics of China?s sea, how to optimize... ver más
Revista: Applied Sciences

 
Yinping Li, Niannian Wang, Jianwei Lei, Fuming Wang and Ce Li    
Ground Penetrating Radar (GPR) is a shallow geophysical method for detecting and locating subsurface targets. The GPR image echo characteristics of complex underground structures can be obtained by carrying out GPR forward modeling research. The traditio... ver más
Revista: Applied Sciences