On a Mechanism of Intraphase Interaction in Non-relaxing Two-phase Flow

Nature of intraphase interaction lies in the aerodynamics of closely-spaced bodies at their common airflow. Any spatial configuration occurs in a big ensemble with occasional particle positioning. Restricting the attention to “close” interactions, it is possible to reduce the problem to pairwise interactions, where only two main types are selected both by geometrical and physical features. From geometrical viewpoint these two types of positioning present: 1) transverse; 2) lengthwise positioning of the bodies as related to the velocity vector of a nondisturbed flow. From physical viewpoint these are 1) a wave interaction through shock waves; 2) a force interaction through a disturbed turbulized particle trail. The wave interaction of the particles has already been studied by us [1]. The main feature of such a structure is as follows: a downstream flow gets a nature of the alternate trails and currents across the flow – the trails behind the particles and currents between them. So, the influence of the windward particle on the lee one through the trail is of fundamental importance even for the transverse geometry. This paper deals with the experimental simulation of the intraphase interaction in a particle cloud through a turbulized trail. The simulation is carried out with the aid of a lengthwise system of spheres in the stream after the shock wave.