A practical method is presented to generate inflow boundary conditions for the laminar but spatially inhomogeneous flow out of filters, packed beds, or sinter plates. A synthetic velocity field that statistically reproduces the outflow characteristics is created based on digitally filtered random noise by the integral lengthscale of the investigated flow at a low computational cost. The method is tested to reproduce a real flow downstream of a sinter plate, which has its velocity measured using a hot-wire anemometer. Results demonstrate that the present method can efficiently generate synthetic inflow fields.

中文翻译：

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来自过滤器、填充床或烧结板的不均匀流的合成入口条件

提出了一种实用方法，用于为过滤器、填充床或烧结板的层流但空间不均匀的流动生成流入边界条件。统计地再现流出特征的合成速度场是基于数字过滤的随机噪声通过所研究的流的积分长度尺度以较低的计算成本创建的。该方法经过测试，可重现烧结板下游的真实流动，并使用热线风速计测量其速度。结果表明，本方法可以有效地生成合成流入场。