Sound Cask: Music and voice communications system with three-dimensional sound reproduction based on boundary surface control principle

2013 ◽  
Vol 133 (5) ◽  
pp. 3402-3402
Author(s):  
Yusuke Ikeda ◽  
Shiro Ise
Keyword(s):  
Three Dimensional ◽  
Boundary Surface ◽  
Sound Reproduction ◽  
Voice Communications ◽  
Surface Control ◽  
Control Principle ◽  
Communications System

scholarly journals Sound field reproduction and sharing system based on the boundary surface control principle

2015 ◽  
Vol 36 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Akira Omoto ◽  
Shiro Ise ◽  
Yusuke Ikeda ◽  
Kanako Ueno ◽  
Seigo Enomoto ◽  
...  
Keyword(s):  
Boundary Surface ◽  
Sound Field ◽  
Surface Control ◽  
Control Principle

scholarly journals The Numerical Analysis of the Flow on the Smooth and Nonsmooth Boundaries by IBEM/DBIEM

2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Gang Xu ◽  
Guangwei Zhao ◽  
Jing Chen ◽  
Shuqi Wang ◽  
Weichao Shi
Keyword(s):  
Boundary Value ◽  
Three Dimensional ◽  
Boundary Surface ◽  
Tangential Velocity ◽  
Integral Equation Method ◽  
Boundary Integral ◽  
Surface Shape ◽  
Normal Vector ◽  
Computational Domain ◽  
Nonsmooth Boundary

The value of the tangential velocity on the Boundary Value Problem (BVP) is inaccurate when comparing the results with analytical solutions by Indirect Boundary Element Method (IBEM), especially at the intersection region where the normal vector is changing rapidly (named nonsmooth boundary). In this study, the singularity of the BVP, which is directly arranged in the center of the surface of the fluid computing domain, is moved outside the computational domain by using the Desingularized Boundary Integral Equation Method (DBIEM). In order to analyze the accuracy of the IBEM/DBIEM and validate the above-mentioned problem, three-dimensional uniform flow over a sphere has been presented. The convergent study of the presented model has been investigated, including desingularized distance in the DBIEM. Then, the numerical results were compared with the analytical solution. It was found that the accuracy of velocity distribution in the flow field has been greatly improved at the intersection region, which has suddenly changed the boundary surface shape of the fluid domain. The conclusions can guide the study on the flow over nonsmooth boundaries by using boundary value method.

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