Abstract
Lift and drag forces on a square prism with a (splitter) plate are
experimentally investigated by force measurements with a load cell. Results
showed that drag and lift coefficients are independent of Reynolds number for Re = 9700 – 36500 at 0°, 45°, 90°, 135° and 180°. Drag coefficient at 0° is obtained as 2.02 for the square prism alone, and
1.04 for the square cylinder with splitter plate. Maximum drag reduction for
the square cylinder with the plate is 50% as compared to the square cylinder at
0° and 15°. For α < 30° and α > 114°, drag coefficient of a square prism with
splitter plate is smaller than that of the square prism alone. At Re = 20000, lift
and drag coefficients significantly change with increasing attack angle.
References
- Akansu, Y. E., Karakaya, F. and Şanlısoy, A. (2013) Active Control of Flow around NACA 0015 Airfoil by Using DBD Plasma Actuator, EPJ Web of Conferences, 45, 1008. doi:10.1051/epjconf/20134501008
- Akansu, Y. E., Bayindirli, C. and Seyhan, M. (2016) The Improvement of Drag Force on a Truck Trailer Vehicle by Passıve Flow Control Methods. Isı Bilimi ve Teknigi Dergisi-Journal of Thermal Science and Technology 36(1):133–41.
- Akansu, Y. E., Ozmert, M. and Firat, E. (2011) The Effect of Attack Angle to Vortex Shedding Phenomenon of Flow around a Square Prism with a Flow Control Rod, Isı Bılımı Ve Teknıgı Dergısı-Journal Of Thermal Scıence And Technology, 31(1), 109–120.
- Akansu, Y. E., Sarioglu, M. and Yavuz, T. (2004) Flow around a Rotatable Circular Cylinder-Plate Body at Subcritical Reynolds Numbers, AIAA Journal, 42(6):1073–80. doi: 10.2514/1.4265.
- Akbıyık, H., Yahya E. A., Yavuz, H. and Bay, A. E. (2016) Effect of Plasma Actuator and Splitter Plate on Drag Coefficient of a Circular Cylinder, EPJ Web of Conferences, 114, 1051. doi: 10.1051/epjconf/201611402001.
- Bayındırlı, C. (2017) The Experimental Investigation of the Effects of Spoiler Design on Aerodynamic Drag Coefficient on Truck Trailer Combinations, International Journal of Automotive Engineering and Technologies, 6(0),11–18.
- Bearman, P. W. and Harvey, J. K. (1993) Control of Circular Cylinder Flow by the Use of Dimples.” AIAA Journal 31(10):1753–56. doi:10.2514/3.11844.
- Coleman, H. W. and Steele, W. G. (2009) Experimentation, Validation, and Uncertainty Analysis for Engineers, John Wiley & Sons, New Jersey.
- Fırat, E., Akansu, Y. E. and Akilli, H. (2015) Flow Past a Square Prism with an Upstream Control Rod at Incidence to Uniform Stream, Ocean Engineering, 108, 504–18. doi: 10.1016/j.oceaneng.2015.08.041.
- Gilarranz, J. L., Traub, L. W. and Rediniotis, O. K. (2005) A New Class of Synthetic Jet Actuators—Part I: Design, Fabrication and Bench Top Characterization, Journal of Fluids Engineering, 127(2), 367-376. doi: 10.1115/1.1839931.
- Godard, G. and Stanislas, M. (2006) Control of a Decelerating Boundary Layer. Part 1: Optimization of Passive Vortex Generators, Aerospace Science and Technology 10(3), 181–91. doi: 10.1016/j.ast.2005.11.007.
- Lee, B. E. (1975) The Effect of Turbulence on the Surface Pressure Field of a Square Prism, Journal of Fluid Mechanics, 69(2), 263–82. doi:10.1017/S0022112075001437
- Li, Z., Navon, I. M., Hussaini, M. Y. and Dimet, F. X. L. (2003) Optimal Control of Cylinder Wakes via Suction and Blowing, Computers and Fluids, 32(2), 149–171. doi: 10.1016/S0045-7930(02)00007-5
- Vivek, M.and Oosthuizen. P. H. (1990) Effects of Splitter Plates on the Wake Flow behind a Bluff Body, AIAA Journal, 28(5), 778–83. doi:10.1016/S0045-7930(02)00007-5.
- Rathakrishnan, E. (1999) Effect of Splitter Plate on Bluff Body Drag, AIAA Journal, 37(9), 1125–26. doi:10.2514/2.823.
- Sarioglu, M. (2017) Control of Flow around a Square Cylinder at Incidence by Using a Splitter Plate, Flow Measurement and Instrumentation, 53, 221–29. doi:10.1016/j.flowmeasinst.2016.06.024.
- 17. Sarioglu, M., Akansu, Y. E. and Yavuz, T. (2006) Flow Around a Rotatable Square Cylinder-Plate Body, AIAA Journal, 44(5), 1065–72. doi:10.2514/1.18069.
- Sarioglu, M., Akansu, Y. E. and Yavuz, T. (2005) Control of the Flow around Square Cylinders at Incidence by Using a Rod, AIAA Journal, 43(7), 1419–26. doi:10.2514/1.18069
- Shimada, K. and Ishihara, T. (2002) Application of a Modified K–Ε Model to the Prediction of Aerodynamic Characteristics of Rectangular Cross-Section Cylinders, Journal of Fluids and Structures, 16(4), 465–85. doi:10.1006/jfls.2001.0433.
- Tamura, T. and Miyagi, T. (1999) The Effect of Turbulence on Aerodynamic Forces on a Square Cylinder with Various Corner Shapes, Journal of Wind Engineering and Industrial Aerodynamics, 83(1), 135–45. doi:10.1016/S0167-6105(99)00067-7.
- Volino, R. J. and Mounir B. I. (2012) Separation Control on High Lift Low-Pressure Turbine Airfoils Using Pulsed Vortex Generator Jets, Applied Thermal Engineering, 49, 31–40. doi:10.1016/j.applthermaleng.2011.08.028.
- Zhang, Y. Y., Huang, D. G., Sun, X. J. and Wu, G. Q. (2010) Exploration in Optimal Design of an Airfoil with a Leading Edge Rotating Cylinder, Journal of Thermal Science, 19(4), 318–25. doi:10.1007/s11630-010-0389-6.
Abstract
Farklı hücum
açılarında akış ayırıcı plakalı bir kare prizmaya etki eden kaldırma ve
sürükleme kuvvetleri yük hücresiyle ölçülerek deneysel olarak incelenmiştir.
Sonuçlar, kaldırma ve sürükleme katsayılarının Re = 9700 – 36500 aralığında 0°,
45°, 90°, 135° ve 180° hücum açıları için Reynolds sayısından bağımsız olduğunu
göstermiştir. Sürükleme katsayısı 0° hücum açısında tek kare prizma için 2.02 ve ayırıcı
plakalı kare durumunda ise 1.04 olarak elde edilmiştir. Plakalı kare için
maksimum sürükleme katsayısındaki azalma 50% olarak 0° ve 15°’de elde edilmiştir. α <30° ve α >114° aralıkları için,
plakalı karenin sürükleme katsayısı sade karenin sürükleme katsayısından
küçüktür. Re = 20000’de, kaldırma ve sürükleme katsayılarının önemli derecede hücum
açısına bağlı olarak değiştiği görülmüştür.
References
- Akansu, Y. E., Karakaya, F. and Şanlısoy, A. (2013) Active Control of Flow around NACA 0015 Airfoil by Using DBD Plasma Actuator, EPJ Web of Conferences, 45, 1008. doi:10.1051/epjconf/20134501008
- Akansu, Y. E., Bayindirli, C. and Seyhan, M. (2016) The Improvement of Drag Force on a Truck Trailer Vehicle by Passıve Flow Control Methods. Isı Bilimi ve Teknigi Dergisi-Journal of Thermal Science and Technology 36(1):133–41.
- Akansu, Y. E., Ozmert, M. and Firat, E. (2011) The Effect of Attack Angle to Vortex Shedding Phenomenon of Flow around a Square Prism with a Flow Control Rod, Isı Bılımı Ve Teknıgı Dergısı-Journal Of Thermal Scıence And Technology, 31(1), 109–120.
- Akansu, Y. E., Sarioglu, M. and Yavuz, T. (2004) Flow around a Rotatable Circular Cylinder-Plate Body at Subcritical Reynolds Numbers, AIAA Journal, 42(6):1073–80. doi: 10.2514/1.4265.
- Akbıyık, H., Yahya E. A., Yavuz, H. and Bay, A. E. (2016) Effect of Plasma Actuator and Splitter Plate on Drag Coefficient of a Circular Cylinder, EPJ Web of Conferences, 114, 1051. doi: 10.1051/epjconf/201611402001.
- Bayındırlı, C. (2017) The Experimental Investigation of the Effects of Spoiler Design on Aerodynamic Drag Coefficient on Truck Trailer Combinations, International Journal of Automotive Engineering and Technologies, 6(0),11–18.
- Bearman, P. W. and Harvey, J. K. (1993) Control of Circular Cylinder Flow by the Use of Dimples.” AIAA Journal 31(10):1753–56. doi:10.2514/3.11844.
- Coleman, H. W. and Steele, W. G. (2009) Experimentation, Validation, and Uncertainty Analysis for Engineers, John Wiley & Sons, New Jersey.
- Fırat, E., Akansu, Y. E. and Akilli, H. (2015) Flow Past a Square Prism with an Upstream Control Rod at Incidence to Uniform Stream, Ocean Engineering, 108, 504–18. doi: 10.1016/j.oceaneng.2015.08.041.
- Gilarranz, J. L., Traub, L. W. and Rediniotis, O. K. (2005) A New Class of Synthetic Jet Actuators—Part I: Design, Fabrication and Bench Top Characterization, Journal of Fluids Engineering, 127(2), 367-376. doi: 10.1115/1.1839931.
- Godard, G. and Stanislas, M. (2006) Control of a Decelerating Boundary Layer. Part 1: Optimization of Passive Vortex Generators, Aerospace Science and Technology 10(3), 181–91. doi: 10.1016/j.ast.2005.11.007.
- Lee, B. E. (1975) The Effect of Turbulence on the Surface Pressure Field of a Square Prism, Journal of Fluid Mechanics, 69(2), 263–82. doi:10.1017/S0022112075001437
- Li, Z., Navon, I. M., Hussaini, M. Y. and Dimet, F. X. L. (2003) Optimal Control of Cylinder Wakes via Suction and Blowing, Computers and Fluids, 32(2), 149–171. doi: 10.1016/S0045-7930(02)00007-5
- Vivek, M.and Oosthuizen. P. H. (1990) Effects of Splitter Plates on the Wake Flow behind a Bluff Body, AIAA Journal, 28(5), 778–83. doi:10.1016/S0045-7930(02)00007-5.
- Rathakrishnan, E. (1999) Effect of Splitter Plate on Bluff Body Drag, AIAA Journal, 37(9), 1125–26. doi:10.2514/2.823.
- Sarioglu, M. (2017) Control of Flow around a Square Cylinder at Incidence by Using a Splitter Plate, Flow Measurement and Instrumentation, 53, 221–29. doi:10.1016/j.flowmeasinst.2016.06.024.
- 17. Sarioglu, M., Akansu, Y. E. and Yavuz, T. (2006) Flow Around a Rotatable Square Cylinder-Plate Body, AIAA Journal, 44(5), 1065–72. doi:10.2514/1.18069.
- Sarioglu, M., Akansu, Y. E. and Yavuz, T. (2005) Control of the Flow around Square Cylinders at Incidence by Using a Rod, AIAA Journal, 43(7), 1419–26. doi:10.2514/1.18069
- Shimada, K. and Ishihara, T. (2002) Application of a Modified K–Ε Model to the Prediction of Aerodynamic Characteristics of Rectangular Cross-Section Cylinders, Journal of Fluids and Structures, 16(4), 465–85. doi:10.1006/jfls.2001.0433.
- Tamura, T. and Miyagi, T. (1999) The Effect of Turbulence on Aerodynamic Forces on a Square Cylinder with Various Corner Shapes, Journal of Wind Engineering and Industrial Aerodynamics, 83(1), 135–45. doi:10.1016/S0167-6105(99)00067-7.
- Volino, R. J. and Mounir B. I. (2012) Separation Control on High Lift Low-Pressure Turbine Airfoils Using Pulsed Vortex Generator Jets, Applied Thermal Engineering, 49, 31–40. doi:10.1016/j.applthermaleng.2011.08.028.
- Zhang, Y. Y., Huang, D. G., Sun, X. J. and Wu, G. Q. (2010) Exploration in Optimal Design of an Airfoil with a Leading Edge Rotating Cylinder, Journal of Thermal Science, 19(4), 318–25. doi:10.1007/s11630-010-0389-6.
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Articles |
| Authors | |
| Publication Date | August 31, 2018 |
| Submission Date | September 25, 2016 |
| Acceptance Date | June 22, 2018 |
| Published in Issue | Year 2018 Volume: 23 Issue: 2 |
Cite
Cited By
The Determination Of Effect Of Windshield Inclination Angle To Drag Coefficient Of A Bus Model By Cfd Method
International Journal of Automotive Engineering and Technologies
Cihan BAYINDIRLI
https://doi.org/10.18245/ijaet.723755
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