切圆燃烧流场中不同高宽比矩形喷嘴射流特性的试验研究

=Experimental Study of Jet Characteristics of a Rectangular Nozzle with Different Height to width Ratios in a Tangentially fired Combustion Flow Field

采用热线风速仪 ,首次在四角切圆燃烧的流场中 ,对不同高宽比的一次风矩形喷嘴射流在流场中的刚性及湍流特性进行了详细的试验研究 ,并分析了在不同高宽比下矩形喷嘴射流在四角切圆复杂流场中的偏转及稳燃机理 ,得到了的四角切圆燃烧流场中一次风矩形喷嘴的最佳高宽比 。

With the help of a hot wire anemometer a detailed experimental study was performed of the rigidity and turbulence characteristics of the jet flow of a primary air rectangular nozzle with different height to width ratios in a tangentially fired combustion flow field. Furthermore, the deflection and stable combustion mechanism of the rectangular nozzle jet flow under different height to width ratios is also analyzed. As a result, obtained was the optimum height to width ratio of the rectangular nozzle in the tangentially fired combustion flow field. The study results may serve as helpful reference data for engineering design and general applications.