Experimental Study of Flow Field at the Outlet of Dual-Channel Burner  

作　　者：YaoBin WangHanfeng ZengHancai JiaoQingfeng 

机构地区：[1]StateKeyLaboratoryofCoalCombustion,HuazhongUniversityofScience＆Technology [2]HunanElectricPowerTestandResearchInstitute

出　　处：《Electricity》2005年第2期38-41,共4页电气（英文版）

基　　金：This paper is about a project financed by National Natural Science Foundation (No. 50476070).

摘　　要：This paper presents an experimental study result of flow field of a dual-channel burner. In order to solve the ubiquitous problem of bad rigidity of jets in dual-channel burners, wedges with different arrangements and structural parameters were added to different positions at the outlet of the burners. Laser Particle Image Velocimetry (PIV) was used in this study to measure the flow field to investigate influence of the wedges on flow field of the dual-channel burner. Experimental study shows that fixing wedges at both right and left sides of the burner's outlet can increase the intensity of recirculadon without changing the size of the recirculation zone and enhance the rigidity of jets via increasing speed of the two primary air jets at the outlet.This paper presents an experimental study result of flow field of a dual-channel burner. In order to solve the ubiquitous problem of bad rigidity of jets in dual-channel burners, wedges with different arrangements and structural parameters were added to different positions at the outlet of the burners. Laser Particle Image Velocimetry (PIV) was used in this study to measure the flow field to investigate influence of the wedges on flow field of the dual-channel burner. Experimental study shows that fixing wedges at both right and left sides of the burner's outlet can increase the intensity of recirculation without changing the size of the recirculation zone and enhance the rigidity of jets via increasing speed of the two primary air jets at the outlet.

关 键 词：BURNER DUAL-CHANNEL PIV WEDGE flow field 

分 类 号：TK223.23[动力工程及工程热物理—动力机械及工程]