Experiments of Flow of Air Jet Loom with Air Guides:Part 1: Characteristics of Flow Injected into Air Guides

Abstract

The characteristics of flows in tubes with different diameters are studied, and compared with flows in tubes with slits.The main results are as follows:(1) The flow in a tube can be divided into two regions by the difference of flow feature.(2) The flow in the first region shows similar features to a free jet flow untill a jet flow from a nozzle reaches a tube wall and the static pressure on the tube wall is negative.(3) The other region is a down stream part of the tube and shows the characteristics of a pipe flow. The effects of the diameter, gap distance between a nozzle and a tube, and the slit are classified.