Directional Decomposition of the Acoustic Wave Equation for Fluids And metafluids in Spher

来源 :第八届工业与应用数学国际大会 | 被引量 : 0次 | 上传用户:fongyu061440
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  A new directional decomposition of the acoustic 3D wave equation is derived for spherically symmetric geometries,where the wave fields do not need to possess such a symmetry.The wave equation considered incorporates effects from radially varying compressibility and density,but also from an anisotropic compressibility,making the equation applicable for certain so called metafluids.Contrary to previous results on such wave splittings,the new decomposition can be given a very explicit form.
其他文献
The problem of projective lag synchronization(PLS)behaviour with delayed coupling in drive-response dynamical networks model is investigated.Based on Lyapunov stability theory,a hybrid feedback contro
会议
For a given graph G of minimum degree at least k,let Gp denote the random spanning subgraph of G obtained by retaining each edge independently with probability p= p(k).
会议
We propose numerical schemes to solve linear kinetic equations in the diffusion and anomalous diffusion scalings.
会议
We point out that the thermodynamic equilibrium is not an interior point of the hyperbolicity region of Grads 13-moment system.
会议
Understanding the coupling of physical models at different scales is important and challenging.
会议
We apply positivity-preserving high order local discontinuous Galerkin methods to solve parabolic equations with blow-up solutions.This model is commonly used in combustion problems.
会议
The population of shoot apical stem cells are negatively feedback regulated by lateral organs through the auxin regulation.We modified the flux-based polar auxin transport model by changing the auxin
会议
Estimating the local strain tensor from a sequence of microstructural images,realized during a tensile test,is a challenging problem.Here we propose to compute the strain tensor by a variational optic
会议
Homogenization has been widely used for predicting effective coefficients of random heterogeneous materials.Under common Dirichlet boundary condition and Neumann boundary condition,Richardson extrapol
会议
Reflection and refraction phenomena of a plane dilatational wave striking obliquely at a plane interface between a uniform elastic half-space and a swelling porous elastic half-space has been studies.
会议