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KRİTİK ÜSTÜ AÇIK KANAL AKIMININ DETACHED EDDY VE LARGE EDDY SİMÜLASYON İLE SAYISAL MODELLENMESİ

Year 2016, Volume: 4 Issue: 4, 213 - 224, 21.12.2016

Abstract

Kritik üstü açık kanal akımının üç boyutlu sayısal analizi, sonlu hacimler yöntemine dayalı ANSYS-Fluent ile yapılmıştır. Sayısal hesaplamalarda türbülanslı akımın karakteristiklerinin belirlenmesinde Large Eddy ve Realizable k-e  tabanlı Detached Eddy Simülasyonu kullanılmıştır. Sayısal hesaplamalarda su yüzü profili, Akışkan Hacimleri Yöntemi ile elde edilmiştir. Kritik üstü akımın hız alanı Lazer Doppler Anemometresi kullanılarak ölçülmüştür. Sayısal modellerden elde edilen akım hızları ve su yüzü profilleri deneysel ölçümlerle karşılaştırılmış, Detached Eddy Simülasyon modelinin hız alanının hesaplanmasında ve su yüzü profilinin belirlenmesinde Large Eddy Simülasyon modeline göre daha başarılı olduğu görülmüştür.

References

  • Kirkgöz, M. S., Aköz, M. S., ve Öner, A. A., "Experimental and Theoretical Analyses of Two-Dimensional Flows Upstream of Broad-Crested Weirs", Canadian Journal of Civil Engineering, 35(9): p. 975-986, 2008.
  • Akoz, M. S. ve Kirkgoz, M. S., "Numerical and experimental analyses of the flow around a horizontal wall-mounted circular cylinder", Transactions of the Canadian Society for Mechanical Engineering, 33(2): p. 189-215, 2009.
  • Gumus, V., ve ark., "Numerical Modeling of Submerged Hydraulic Jump from a Sluice Gate", Journal of Irrigation and Drainage Engineering, 142(1): p. 04015037, 2015.
  • Yüce, M. I., Al-Babely, A. A., ve Al-Dabbagh, M. A., "Flow simulation over oblique cylindrical weirs", Canadian Journal of Civil Engineering, (ja), 2015.
  • Constantinescu, G., Koken, M., ve Zeng, J., "The structure of turbulent flow in an open channel bend of strong curvature with deformed bed: Insight provided by detached eddy simulation", Water Resources Research, 47(5), 2011.
  • Nasif, G., Barron, R., ve Balachandar, R., "DES evaluation of near-wake characteristics in a shallow flow", Journal of Fluids and Structures, 45: p. 153-163, 2014.
  • Xu, C.-y., Chen, L.-w., ve Lu, X.-y., "Large-eddy and detached-eddy simulations of the separated flow around a circular cylinder", Journal of Hydrodynamics, Ser. B, 19(5): p. 559-563, 2007.
  • ANSYS, "FLUENT Theory Guide". USA: ANSYS Inc., 2012.
  • Smagorinsky, J., "General circulation experiments with the primitive equations: I. the basic experiment*", Monthly weather review, 91(3): p. 99-164, 1963.
  • Hirt, C. W. ve Nichols, B. D., "Volume of Fluid (Vof) Method for the Dynamics of Free Boundaries", Journal of Computational Physics, 39(1): p. 201-225, 1981.
  • Çelik, I. B., ve ark., "Procedure for Estimation and Reporting of Uncertainty Due to Discretization in CFD Applications", Journal of Fluids Engineering-Transactions of the Asme, 130(7), 2008.
  • Roache, P. J., "Verification of Codes and Calculations", Aiaa Journal, 36(5): p. 696-702, 1998.
  • Kirkgoz, M. S. ve Ardiclioglu, M., "Velocity profiles of developing and developed open channel flow", Journal of Hydraulic Engineering-Asce, 123(12): p. 1099-1105, 1997.
Year 2016, Volume: 4 Issue: 4, 213 - 224, 21.12.2016

Abstract

References

  • Kirkgöz, M. S., Aköz, M. S., ve Öner, A. A., "Experimental and Theoretical Analyses of Two-Dimensional Flows Upstream of Broad-Crested Weirs", Canadian Journal of Civil Engineering, 35(9): p. 975-986, 2008.
  • Akoz, M. S. ve Kirkgoz, M. S., "Numerical and experimental analyses of the flow around a horizontal wall-mounted circular cylinder", Transactions of the Canadian Society for Mechanical Engineering, 33(2): p. 189-215, 2009.
  • Gumus, V., ve ark., "Numerical Modeling of Submerged Hydraulic Jump from a Sluice Gate", Journal of Irrigation and Drainage Engineering, 142(1): p. 04015037, 2015.
  • Yüce, M. I., Al-Babely, A. A., ve Al-Dabbagh, M. A., "Flow simulation over oblique cylindrical weirs", Canadian Journal of Civil Engineering, (ja), 2015.
  • Constantinescu, G., Koken, M., ve Zeng, J., "The structure of turbulent flow in an open channel bend of strong curvature with deformed bed: Insight provided by detached eddy simulation", Water Resources Research, 47(5), 2011.
  • Nasif, G., Barron, R., ve Balachandar, R., "DES evaluation of near-wake characteristics in a shallow flow", Journal of Fluids and Structures, 45: p. 153-163, 2014.
  • Xu, C.-y., Chen, L.-w., ve Lu, X.-y., "Large-eddy and detached-eddy simulations of the separated flow around a circular cylinder", Journal of Hydrodynamics, Ser. B, 19(5): p. 559-563, 2007.
  • ANSYS, "FLUENT Theory Guide". USA: ANSYS Inc., 2012.
  • Smagorinsky, J., "General circulation experiments with the primitive equations: I. the basic experiment*", Monthly weather review, 91(3): p. 99-164, 1963.
  • Hirt, C. W. ve Nichols, B. D., "Volume of Fluid (Vof) Method for the Dynamics of Free Boundaries", Journal of Computational Physics, 39(1): p. 201-225, 1981.
  • Çelik, I. B., ve ark., "Procedure for Estimation and Reporting of Uncertainty Due to Discretization in CFD Applications", Journal of Fluids Engineering-Transactions of the Asme, 130(7), 2008.
  • Roache, P. J., "Verification of Codes and Calculations", Aiaa Journal, 36(5): p. 696-702, 1998.
  • Kirkgoz, M. S. ve Ardiclioglu, M., "Velocity profiles of developing and developed open channel flow", Journal of Hydraulic Engineering-Asce, 123(12): p. 1099-1105, 1997.
There are 13 citations in total.

Details

Journal Section Original Articles
Authors

Mevlüt Sami Aköz

Nazire Göksu Soydan

Oğuz Şimşek This is me

Publication Date December 21, 2016
Submission Date June 10, 2016
Published in Issue Year 2016 Volume: 4 Issue: 4

Cite

APA Aköz, M. S., Soydan, N. G., & Şimşek, O. (2016). KRİTİK ÜSTÜ AÇIK KANAL AKIMININ DETACHED EDDY VE LARGE EDDY SİMÜLASYON İLE SAYISAL MODELLENMESİ. Gazi University Journal of Science Part C: Design and Technology, 4(4), 213-224.

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