混响室建模的腔格林函数边界元法:测量验证

M. E. Gruber, T. Eibert
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引用次数: 2

摘要

本文首次用谱域加速的混合腔格林函数边界元法对混响室进行了数值模拟。为了提高计算速度,对数值模型进行了优化:忽略了电缆或搅拌器轴等几何细节;激励天线采用偶极子模型;并且通过波数的复化近似处理了腔壁和所有其他物体的损失。尽管模型粗糙,但数值结果与统计量(如独立搅拌器位置的数量)的测量结果很好地吻合。
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A cavity Green's function boundary element method for the modeling of reverberation chambers: Validation against measurements
A hybrid cavity Green's function boundary element method with spectral domain acceleration for the modeling of reverberation chambers is for the first time validated against measurements. The numerical model is optimized for computational speed: geometrical details, such as cables or the stirrer axis, are neglected; the excitation antenna is modeled as a dipole; and losses of the cavity walls and all other objects are approximately handled by complexification of the wavenumber. Despite the coarseness of the model, the numerical results are in good agreement with the measurements for statistical quantities, such as the number of independent stirrer positions.
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