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Can I read Effect of Bulk Flow Pulsations on Film Cooling with Compound Angle Holes on EtoBox?
Effect of Bulk Flow Pulsations on Film Cooling with Compound Angle Holes by Joon Sik Lee; In Sung Jung is a Engineering article available to read on EtoBox.
What is Effect of Bulk Flow Pulsations on Film Cooling with Compound Angle Holes about?
Experiments are conducted to investigate the eects of bulk ̄ow pulsations on ®lm cooling with compound angle holes. A row of ®ve ®lm cooling holes is considered with orientation angles of 0°, 30°, 60°, and 90°at a ®xed inclination angle of 35°. Static pressure pulsations are produced by an array of six rotating shutter blades, which extend across the span of the exit of the wind tunnel test section. The pulsation frequency is ®xed at 36 Hz, but changes in the timeaveraged blowing ratios of 0.5, 1.0 and 2.0 produce three dierent coolant Strouhal numbers, 3.6, 1.8 and 0.9, respectively. Detailed ®lm cooled boundary layer temperature distributions are measured by a cold wire and the adiabatic ®lm cooling eectiveness by thermochromic liquid crystal (TLC). The boundary layer temperature surveys show that pulsations induce large disruptions to the boundary layer temperature distribution and the ®lm coverage. As the orientation angle increases, the injectant concentration spreads further into the spanwise direction because of pulsations than the steady case. With pulsations the adiabatic ®lm cooling eectiveness value decreases regardless of the orientation angle. The amount of reduction,
Who reads Effect of Bulk Flow Pulsations on Film Cooling with Compound Angle Holes?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Joon Sik Lee; In Sung Jung
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0017-9310)
- Published
- 2002
- Language
- EN
- Field
- Engineering (Physical Sciences)