INVESTIGATION OF TURBULENT WAKE-BOUNDARY LAYER INTERACTION WITH INJECTION
SABRY, T., HEWEDY, N., EMBABY, M., ELBATAWY, A. (1989). INVESTIGATION OF TURBULENT WAKE-BOUNDARY LAYER INTERACTION WITH INJECTION. EKB Journal Management System, 3(ASAT Conference 4-6 April 1989 , CAIRO), 105-114. doi: 10.21608/asat.1989.25868
T. I. SABRY; N. I. I. HEWEDY; M. H. EMBABY; A. A. ELBATAWY. "INVESTIGATION OF TURBULENT WAKE-BOUNDARY LAYER INTERACTION WITH INJECTION". EKB Journal Management System, 3, ASAT Conference 4-6 April 1989 , CAIRO, 1989, 105-114. doi: 10.21608/asat.1989.25868
SABRY, T., HEWEDY, N., EMBABY, M., ELBATAWY, A. (1989). 'INVESTIGATION OF TURBULENT WAKE-BOUNDARY LAYER INTERACTION WITH INJECTION', EKB Journal Management System, 3(ASAT Conference 4-6 April 1989 , CAIRO), pp. 105-114. doi: 10.21608/asat.1989.25868
SABRY, T., HEWEDY, N., EMBABY, M., ELBATAWY, A. INVESTIGATION OF TURBULENT WAKE-BOUNDARY LAYER INTERACTION WITH INJECTION. EKB Journal Management System, 1989; 3(ASAT Conference 4-6 April 1989 , CAIRO): 105-114. doi: 10.21608/asat.1989.25868

INVESTIGATION OF TURBULENT WAKE-BOUNDARY LAYER INTERACTION WITH INJECTION

International Conference on Aerospace Sciences and Aviation Technology
Article 9, Volume 3, ASAT Conference 4-6 April 1989 , CAIRO, April 1989, Page 105-114  XML PDF (2.62 MB)
Document Type: Original Article
DOI: 10.21608/asat.1989.25868
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Authors
T. I. SABRY1; N. I. I. HEWEDY2; M. H. EMBABY3; A. A. ELBATAWY4
1Professor, Head of Department & Vice Dean, Mechanical Power Engineering Department, Menoufia University,Shebin ElKom, EGYPT.
2Associate Prof-essor, Mechanical Power Engineering Department, Menoufia University,Shebin ElKom, EGYPT.
3Lecturer, Mechanical Power Engineering Department, Menoufia University,Shebin ElKom, EGYPT.
4Demonstrator, Mechanical Power Engineering Department, Menoufia University,Shebin ElKom, EGYPT.
Abstract
The present paper is concerned with experimental study of the interaction between a wake, with injection at its begining,and a boundary layer. The wake is developed downstream a finite length and thickness plate inside an open-type wind tunnel test section while the boundary layer is developed over the wall of the test section. The measurements are carried out at Reynolds number 1.8 x 105 and injection to Main stream velocity ratios (A) of (0 < A< 0.7). In the experiments the mean velocity pro-files, the wall static pressure distrubtion and the local skin friction coefficient are measured. The results indicate that, for a certain velocity ratio, moving downstream from the trai-ling edge of the thick plate the wake decays while the bound-arey layer grows gradually. Also, the wake depth decreases,the wake width increases and the position of maximum velocity moves into the inner layer. On the other hand-at a certain distance from the trailing edge-as the velocity ratio increases the wall pressure coefficient, the momentum thickness Reynolds number and the shape factor decrease while the skin friction coeffic-ient increases. Also-as the velocity ratio increases the rate of wake decay, the wake center line velocity and the wake width increase while the wake depth decreases.
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