Numerical Study on the Particle Movement of a Particle-Laden Impinging Jet

Title & Authors
Numerical Study on the Particle Movement of a Particle-Laden Impinging Jet
Lee, Jae-Beom; Seo, Yeong-Seop; Lee, Jeong-Hui; Choe, Yeong-Gi;

Abstract
The purpose of this study is to analyze numerically the movement of particles included in turbulent fluid flow characteristics of metallic surfaces. To describe fluid flew, the incompressible Navier-Stokes equation discretized by the finite volume method were solved on the non-orthogonal coordinates with non-staggered variable arrangement, and the k-$\small{\xi}$ turbulence model was adapted. After fluid flow was calculated, particle movement was predicted from the Lagrangian approaches. Non-essential complexities were avoided by assuming that the particles had spherical shapes and the Stoke's drag formula only consisted of external farces acting upon them. In order to validate the numerical calculations, the results were compared with the experimental data reported in literature and agreed well with them. The drag force coefficient equation showed better agreement with the experimental data in the prediction of particle movement than the correction factor equation. Impact velocity and impact angle increased as inlet turbulence intensity decreased, relative jet height was lower. or the Reynolds number was larger.
Keywords
Particle Movement;Particle-Laden Impinging Jet;Stoke′s Drag Formula;
Language
Korean
Cited by
References
1.
Morsi, S. A. and Alexander, A. J., 1972, 'An Investigation of Particle Trajectories in Two Phase Flow System,' Journal of Fluid Mechanics, Vol. 55, p. 193

2.
Hussein, M. and Tabakoff, W., 1973, 'Dynamic Behavior of Solid Particles Suspended by Polluted Flow in Turbine Stage,' Journal of Aircraft, Vol.10, No.7, pp. 334-340

3.
Elghobashi, S. E. and Abou-Arab, T. W., 1983, 'A Two-Equation Model for Two-Phase Flows,' Phys. Fluids, 26(4), pp. 931 - 938

4.
Elghobashi, S. E., Abou-Arab, T. W., Rizk, M. and Mostafa, 1984, 'Prediction of the Particle-Laden Jet with a Two-Equation Turbulence Model,' International Journal of Multiphase Flow, Vol. 10, No.6, pp. 697-710

5.
Shuen, J. S., Chen, L. D. and Faeth, G. M., 1983, 'Prediction of the Structure of Turbulent, Particle-Laden Round Jets,' AIAA Journal, Vol. 21, No. 11, pp. 1483-1484

6.
Zhang, Q. F., Shuen, J. S., Solomon, A. S. P. and Faeth, G. M., 1985, 'Structure of Ducted Particle-Laden Turbulent Jets,' AIAA Journal, pp. 1123-1125

7.
Hamed, A. and Flowers, S.. 1983, 'Erosion Pattern of Twisted Blades by Particle Laden Flows,' ASME Journal of Engineering for Power, Vol. 105, pp. 839 - 843

8.
박원규, 박만성, 정영래, 오세민, 이수원, '심정용, 1996, 펌프 내의 입자 궤적 해석,' 대한기계학회 1996년도 춘계학술대회논문집 B, pp.143-148

9.
김세진, 이성룡, 전용렬, 김윤재, 1998, '가스터빈 회전익렬내 가스/입자 운동에 관한 수치해석적 연구,' 대한기계학회 1998년도 추계학술대회논문집 B, pp. 687-692

10.
Dosanjh, S. and Humphrey, J. A. C., 1984, The Influence of Turbulence on Erosion by a Particle-laden Fluid Jet, Report No. LBL-17247, Materials and Molecular Research Division, Lawrence Berkely Laboratory, University of California, Berkeley

11.
Pope, S. B., 1978, 'An Explanation of the Turbulent Round-Jet/Plane-Jet Anomaly,' AIAA Journal, 16, 3, pp. 279-280

12.
Rhie, C. M., 1981, A Numerical Study of The Flow past an Isolated Airfoil with Separation, Ph. D. Thesis, Dept. of Mech., Univ. of Illinois at Urbana-Champagn

13.
Lee, S. L., and Durst, F., 1982, 'On the Motion of Particles in Turbulent Duct Flows,' Int. J. Multiphase Flow, Vol. 8, No.2, pp. 125-146

14.
Jun, Y. D. and Tabakoff, W., 1994, 'Numerical Simulation of a Dilute Particle Flow (Laminar) Over Tube Banks,' ASME Journal of Fluids Engineering, Vol. 116, pp. 770-777

15.
Araujo, S. R. B., Durao, D. F. G. and Firmino, J. F. C., 1982, 'Jets Impinging Normally and Obliquely to a wall,' Agard Conference Preprint No. 308, Fluid Dynamics of Jets with Applications to V/STOL

16.
유연상, 1995, '축대칭 난류제트의 초기 유동장에서 레이놀즈수의 영향에 관한 실험적 연구,' 석사학위 논문, 서울대학교

17.
Laitone, J., 1979, Aerodynamic Effects in the Erosion Process, Report No. LBL-8962, Materials and Molecular Research Division, Lawrence Berkely Laboratory, University of California, Berkeley