Investigation of the Three-Dimensional Turbulent Flow Fields of the Gas Swirl Burner with a Cone Type Baffle Plate (Ⅱ)

• 영문명: Investigation of the Three-Dimensional Turbulent Flow Fields of the Gas Swirl Burner with a Cone Type Baffle Plate (Ⅱ)
• 발행기관: 군산대학교 수산과학연구소
• 저자명: Jang-kweon Kim
• 간행물 정보: 『군산대학교 수산과학연구소 연구논문집』제5집, 195~209쪽, 전체 15쪽
• 주제분류: 농수해양 > 해양학
• 파일형태: PDF
• 발행일자: 2004.07.03

영문 초록

This paper presents three-dimensional mean velocities. turbulent intensitie, and Reynolds shear stresses measured in the Y -Z plane of the gas swirl burner with a cone type baffle plate by using an X-type hot-wire probe. This experiment is carried out at the flow rate of 450ℓ/ min which is equivalent to the combustion air flow rate necessary to heat release 15.000 kcal/ hr in a gas furnace. Mean velocities and turbulent intensities etc. show that their maximum values exist around the narrow slits situated radially on the edge of and in front of a burner. According to downstream regions. they have a peculiar shape like a starfish because the flows going out of the narrow slits and the swirl vanes of an inclined baffle plate diffuse and develop into inward and outward of a burner. The rotational flow due to the inclined flow velocity going out of swirl vanes of a cone type baffle plate seems to decrease the magnitudes of mean velocities V and W respectively by about 30% smaller than those of mean velocity U. The turbulent intensities have large values of 50%-210% within the range of 0.5

목차

Abstract

1. Introduction

2. Experimental Apparatus

3. Experimental Method

4. Results and Discussion

5. Conclusion

Acknowledgement

References

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