Experimental Study of Non-Isothermal Diverging Swirling and Non-Swirling Annular Jets with Central Aspiration

An experimental study of annular jets with central aspiration is presented. Two flow regimes were studied for creating either local air conditioning or local ventilation systems. The local air-conditioning system was developed by maintaining the same flow rates of the non-swirling annular jet and central aspiration. A new concept of a 'local ventilation system' was created by combining the swirling annular air jet impinging on the plate and central aspiration.