Particle‐laden flows in a vertical channel were simulated using an Eulerian–Eulerian, Anisotropic Gaussian (EE‐AG) model. Two sets of cases varying the overall mass loading were done using particle sizes corresponding to either a large or small Stokes number. Primary and turbulent statistics were extracted from these results and compared with counterparts collected from Eulerian–Lagrangian (EL) simulations. The statistics collected from the small Stokes number particle cases correspond well between the two models, with the EE‐AG model replicating the transition observed using the EL model from shear‐induced turbulence to relaminarization to cluster‐induced turbulence as the mass loading increased. The EE‐AG model was able to capture the behavior of the EL simulations only at the largest particle concentrations using the large Stokes particles. This is due to the limitations involved with employing a particle‐phase Eulerian model (as opposed to a Lagrangian representation) for a spatially intermittent system that has a low particle number concentration.

中文翻译：

---

含粒子垂直通道流的欧拉-欧拉和欧拉-拉格朗日模拟的直接比较

使用欧拉-欧拉各向异性高斯（EE-AG）模型模拟​​了垂直通道中充满颗粒的流动。使用对应于较大或较小斯托克斯数的粒径，完成了两组改变总质量负荷的案例。从这些结果中提取出主要统计数据和湍流统计数据，并将其与从欧拉-拉格朗日（EL）模拟中收集的对应数据进行比较。从较小的斯托克斯数颗粒情况收集的统计数据在两个模型之间具有很好的对应性，随着质量载荷的增加，EE-AG模型复制了使用EL模型观察到的从剪切引起的湍流到再分层再到簇引起的湍流的过渡。EE‐AG模型只能使用大的斯托克斯粒子在最大粒子浓度下捕获EL模拟的行为。