NUMERICAL AND EXPERIMENTAL STUDY OF TURBULENT FLOW IN TWO DIMENSION INCLINED WALL JET | ||
| ERJ. Engineering Research Journal | ||
| Article 2, Volume 25, Issue 2, April 2002, Pages 13-30 PDF (608.3 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erjm.2002.70640 | ||
| Author | ||
| A. Abdel- Fattah | ||
| Lecturer in Mechanical Power Engineering Department, Faculty of Engineering, Menoufia University, Shebin El -Kom, Egypt. I ll | ||
| Abstract | ||
In the present study, a steady, two dimension turbulent isothermal and incompressible flow of inclined wall jet has been studied numerically and experimentally. The equations of momentum, continuity and the standard kr turbulent model are solved numerically using a finite-volume method to indicate the effects of wall inclination and Reynolds number on the flow characteristics of two-dimensional inclined wall jet. The Finite volume method is formulated to suite the general grid system. The numerical results indicate the effect of different values of wall angle (8 = 0°, 5O, go, 1 0°, 15O, 30' and 45') together with various Reynolds number (5x103, 10x103, 56x103, 86.24~10~ and 108.732~10~) onthevelocities (u, v), the pressure (p), the location of maximum velocity of flow (b,,/h) and the width of reciruclation zone (bmi,,/h). The present experimental work shows the wall static pressure at different values of wall angle (0°, 5', 8Oand 10') and different values of Re (56x lo3, 86.24~ lo3 and 108.732~ lo3). For the range of O0 5 8 5 45O, the results indicate that, when the wall angle increases, the maximum velocity decays faster and its location shifts towards free stream, while the jet spreads faster. The width of recirculation zone increases by increasing the wall angle and Reynolds number. The pressure increases by increasing the wall angle but this increment decays by increasing the Reynolds number. The numerical results give good agreement with the present experiment work and also with the experiment data of Ref. [I I]. | ||
| Keywords | ||
| General geometry; aerofoil designs; turbo-machinery; air condition; separation flow | ||
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