The surface Helmholtz integral equation dispersed by quadratic iso_parametric element is used as computation equation. Extensive work has been performed to overcome boundary integral equation in acoustic problems, non_uniqueness of solution and singular integral kernels.
以二次等参元离散的表面Helmholtz积分方程作为计算方程,采用一系列数值处理技术,克服了表面Helmholtz积分方程求解声学问题时出现的解的不唯一性和积分函数奇异性。
A Helmholtz coil is installed on the base sliding block through the coil fixed plate and can slide freely on the base guide rail.
亥姆霍兹线圈通过线圈固定板安装在底座滑块上,可以自由的在底座导轨上滑动。
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