Effect of orifice geometry and orifice to test section spacing on distribution of wall static pressure on a convex surface
| Autor: | Anilkumar M. Hanchinal, Vadiraj Katti |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Jet (fluid)
Materials science Mechanical Engineering Flow (psychology) Computational Mechanics Energy Engineering and Power Technology Reynolds number Geometry 02 engineering and technology Static pressure Curvature Stagnation point 01 natural sciences Industrial and Manufacturing Engineering 010305 fluids & plasmas symbols.namesake 020303 mechanical engineering & transports Fuel Technology 0203 mechanical engineering Mechanics of Materials 0103 physical sciences symbols Rectangle Body orifice |
| Zdroj: | Journal of Mechanical Engineering and Sciences; Vol 13 No 2 (2019): (June 2019); 4835-4845 |
| ISSN: | 2231-8380 2289-4659 |
| DOI: | 10.15282/jmes.13.2.2019.05.0402 |
| Popis: | The experimental investigation is carried out to study the distribution of wall static pressure (Cp & Cpo) on the convex smooth surface by air jet impingement. A great deal of attention was paid to analyze the effects of orifice geometry for various flow and geometric conditions, a comparison of the wall static pressure coefficient is done for different orifice. The experimental results show that the wall static pressure on a convex test section is higher for rectangular orifice compared to other orifice. The wall static pressure decreases circumferentially from its maximum value at the stagnation point (θ = 0°) and also for higher Z/dh. Higher value of Cp and Cpo are obtained for unconfined flow. The experiments were performed with the following parameters: the jet Reynolds number (Re) = 10000–50000, the orifice-to- convex surface distance (Z/dh) = 1–5, Circumferential angle (θ) = 0° to 30°, Curvature ratio (D/dh), Orifice = Circular, Square, Triangle, Rectangle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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