Numerical Study of Magnetoacoustic Signal Generation with Magnetic Induction Based on Inhomogeneous Conductivity Anisotropy

Table 2

Comparisons of MAT and MAT-MI sound generation in an inhomogeneous isotropic conductive medium.

	Boundary conditions	Sound sources
		Homogeneous	Boundary
MAT/HEI	𝐸1𝑡=𝐸2𝑡,𝐽1𝑛=𝐽2𝑛	(∇×𝐉)=0	∫𝑉∇⋅(𝐉×𝐁)𝑑𝑉=𝐞𝑡′𝜎2−𝜎1𝐸1𝑡𝑑𝑆⋅𝐁
MAT-MI	𝐵1𝑛=𝐵2𝑛,𝐻1𝑡=𝐻2𝑡	(∇×𝐉)=−𝜎𝜕𝐁1𝜕𝑡