A great number of studies have been conducted pressure drop for packed bed and curved channel. However, pressure drop in the spiral packed beds has not been investigated. In this study, pressure drop in spiral packed beds which are made of two different channel widths (a = 10 mm and a = 15 mm) and three different ball diameters (d = 2.00, 2.38 and 3.17 mm) was investigated experimentally. Experiments were carried out with laminar air flow at steady-state. The friction factors, permeabilities, inertial and Ergun coefficients were determined for spiral packed beds. It was observed that the coefficients of the Ergün correlation were not suitable for the spiral packed beds. These coefficients were determined for spiral packed beds. In addition, considering the effect of the curvature ratio, a modified Dean number was defined. The relation between the pressure drop in spiral packed beds and the modified Dean number was presented. The effect of curvature ratio on pressure drop in spiral packed beds was investigated. The pressure drop correlation based on Re_p and modified Dean numbers obtained from all experimental data was presented and compared with the Ergün equation. This study will be a pioneering study in terms of the effects of the porous medium on the spiral channel.

已经对填充床和弯曲通道的压降进行了大量研究。然而，尚未研究螺旋填充床中的压降。在这项研究中，实验研究了由两种不同的通道宽度（a = 10 mm和a = 15 mm）和三种不同的球直径（d = 2.00、2.38和3.17 mm）制成的螺旋填充床中的压降。实验是在层流稳定状态下进行的。确定了螺旋堆积床的摩擦系数，磁导率，惯性和Ergun系数。观察到，Ergün相关系数不适用于螺旋堆积床。这些系数是针对螺旋填充床确定的。另外，考虑到曲率比的影响，定义了修改的迪安数。提出了螺旋填充床压降与修正迪安数之间的关系。研究了曲率比对螺旋填料床压降的影响。基于Re的压降相关性给出了从所有实验数据获得的_p和修改的Dean数，并将其与Ergün方程进行了比较。就多孔介质对螺旋通道的影响而言，这项研究将是一项开创性的研究。