The main feature of turbulent flow clean room is that the flow cross section of the air flow from the beginning to the outlet (from the air supply outlet to the air return outlet) is variable. The clean room cross section is much larger than the air supply outlet cross section, so it can not form uniform air flow in the whole room cross section or in the whole room working area cross section.

Therefore, the flow lines behind the air supply outlets have a large or increasing angle with each other, and the radius of curvature is very small. The airflow cannot flow in a single direction indoors, and will collide with each other, and there will be backflow and vortex.

This determines that the essence of the flow pattern of the turbulent clean room is: sudden flow; Non-uniform flow.

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