EXPERAMENTAL STUDY ON FLOW FIELD BEHAVIOR CONCERNING THE CROSSED JET FLOWS OF MICROSWIRLING PRIMARY AIR AS WELL AS UPPER AND LOWER SECONDARY AIR[J]. Thermal power generation, 2003, (11): 35-40.
EXPERAMENTAL STUDY ON FLOW FIELD BEHAVIOR CONCERNING THE CROSSED JET FLOWS OF MICROSWIRLING PRIMARY AIR AS WELL AS UPPER AND LOWER SECONDARY AIR[J]. Thermal power generation, 2003, (11): 35-40. DOI: 10.19666/j.rlfd.2003.11.012.
微旋一次风和上下二次风交叉射流流场特性的实验研究
摘要
相互平行的自由射流组中
由于射流间的相互混合和影响
使射流组中每一个射流和单个的自由射流的流动规律有很大差异。通过冷态模化试验
研究了矩形喷口的二次风对具有预燃室的直流和旋流组合的同轴环形射流一次风水煤浆燃烧器流动特性的影响
此研究有着十分重要的理论和实际意义
Abstract
Through test carried out on the coldstate simulation test stand
the influence of secondary air from rectangular jet orifice upon the dynamic behavior of the primary air coalwater slurry burner
which has a coaxial ring type jet flow composed of a straight flow (outer ring) and a swirling flow (inner ring) of the precomustion chamber
has been studied. Test and analysis show that the flow pattern of every jet flow in a jet flow group has very large difference with that of a single free jet flow due to mutual mixing and affecting each other of the said jet flows.