|تعداد مشاهده مقاله||2,423,929|
|تعداد دریافت فایل اصل مقاله||1,709,478|
|Journal of Computational & Applied Research in Mechanical Engineering (JCARME)|
|مقاله 5، دوره 12، شماره 1 - شماره پیاپی 23، آبان 2022، صفحه 51-62 اصل مقاله (881.78 K)|
|نوع مقاله: Research Paper|
|شناسه دیجیتال (DOI): 10.22061/jcarme.2022.8470.2139|
|Aerospace Research Institute (ARI), Tehran, 1465774111, Iran|
|تاریخ دریافت: 20 مهر 1400، تاریخ بازنگری: 04 دی 1400، تاریخ پذیرش: 11 دی 1400|
|Large eddy simulations of non-reactive Delft II and Sydney bluff body flow are performed using different sub-grid scale models. Simulation of non-reactive burners is useful when studying flow characteristics inside reactive burners. As turbulent combustion simulation is rather an intricate task, it is helpful to study cold air flow inside the combustion chamber before igniting the chamber. In order to study the flow inside the mentioned test cases, different sub-grid scale models, i.e., constant Smagorinsky, dynamic Smagorinsky and dynamic WALE model are used to model the unresolved small scales. For the numerical simulations, a finite volume in-house code is used. The code adopts the projection method to solve the fluid flow equations. A second-order accurate scheme is used for spatial discretization. The time integration is done using a second-order accurate predictor-corrector scheme. For solving the resultant pressure Poisson equation, TDMA (Tridiagonal Matrix Algorithm) is used with multi-grid convergence acceleration. Generally, the results show good agreement with available experimental data. As expected, the dynamic WALE model performs better than the other models. To further improve the results, a rather realistic type of velocity inlet boundary conditions are applied to Sydney bluff body flow, i.e., digital filter velocity inflow boundary conditions. The results show drastic improvement using digital filter inflow, which is mainly due to the turbulent nature of the flow field.|
|Large eddy simulation؛ Sub-grid scale models؛ Constant smagorinsky model؛ Dynamic smagorinsky model؛ Dynamic WALE model|
 G. K. Batchelor, An Introduction to Fluid Dynamics, 1st ed., Cambridge University Press, Cambridge, (2000).
 C. G. Ball, H. Fellouah and A. Pollard, "The flow field in turbulent round free jets", Prog. Aerosp. Sci., Vol. 50, No. 1, pp. 1-26, (2012).
 N. Branley and W. P. Jones, "Large eddy simulation of a turbulent non-premixed flame", Combust. Flame, Vol. 127, No. 1-2, pp. 1914-1934, (2001).
 J. Smagorinsky, "General circulation experiments with the primitive equation", Mon. Weather Rev., Vol. 91, No. 3, pp. 99-165, (1963).
 M. Lesieur and O. Metais, "New trends in large-edyy simulations of turbulence", Annu. Rev. Fluid Mech., Vol. 28, No. 1, pp. 45-82, (1996).
 U. Piomelli, "Large-eddy simulation: achievements and challenges", Prog. Aerosp. Sci., Vol. 35, No. 4, pp. 335-362, (1999).
 Y. Zhiyin, "Large-eddy simulation: Past, present and the future", Chinese J. Aeronaut., Vol. 28, No. 1, pp. 11-24, (2015).
 C. Bogey, O. Marsden and C. Bailly, "Investigation of the effects of initial turbulence level on the flow field properties of a subsonic jet", Proc. of 7th International Symposium on Turbulence and Shear Flow Phenomena Ottawa, Canada, pp. 1-6, (2011).
 A. W. Abboud and S. T. Smith, "Large eddy simulation of a coaxial jet with a synthetic turbulent inlet", Int. J. Heat Fluid Flow, Vol. 50, No. 1, pp. 240-253, (2014).
 H. Li, N. K. Anand, Y. A. Hassan, et al., "Large eddy simulations of the turbulent flows of twin parallel jets", Int. J. Heat Mass Trans., Vol. 129, No. 1, pp. 1263-1273, (2019).
 W. P. Jones and M. Wille, "Large-eddy simulation of a plane jet in a cross-flow", Int. J. Heat Fluid Flow, Vol. 17, No. 3, pp. 296-306, (1996).
 F. di Mare, W. P. Jones and K. R. Menzies, "Large eddy simulation of a model gas turbine combustor", Combust. Flame, Vol. 137, No. 3, pp. 278-294, (2004).
 P. Majander and T. Siikonen, "Large-eddy simulation of a round jet in a cross-flow", Int. J. Heat Fluid Flow, Vol. 27, No. 3, pp. 402-415, (2006).
 D. J. Bodony and S. K. Lele, "Current Status of Jet Noise Predictions Using Large-Eddy Simulation", AIAA J., Vol. 46, No. 2, pp. 364-380, (2008).
 J. R. DeBonis, "Progress towards large-eddy simulations for prediction of realistic nozzle systems", J. Propuls. Power, Vol. 23, No. 5, pp. 971-980, (2007).
 H. Pitsch, "Large-eddy simulation of turbulent combustion", Annu. Rev. Fluid Mech., Vol. 38, No. 1, pp. 453-482, (2006).
 W. W. Kim, S. Menon and H. C. Mongia, "Large-eddy simulation of a gas turbine combustor flow", Combust. Sci. Technol., Vol. 143, No. 1-6, pp. 25-62, (1999).
 H. Pitsch and H. Steiner, "Large-eddy simulation of a turbulent piloted methane/air diffusion flame (Sandia flame D)", Phys. Fluids, Vol. 12, No. 10, pp. 2541-2554, (2000).
 S. Navarro-Martinez and A. Kronenburg, "LES-CMC simulations of a turbulent bluff-body flame", Proc. Combust. Inst., Vol. 31, No. 2, pp. 1721-1728, (2007).
 P. Sagaut, Large Eddy Simulation for Incompressible Flows An Introduction, Third ed., Springer, (2006).
 G. Ghorbaniasl, Computational aeroacoustic-noise prediction using hybrid methodologies, Ph.D. thesis, Vrije Universiteit Brussel, Brussels, Belgium, (2009).
 M. Germano, U. Piomelli, P. Moin, et al., "A dynamic subgrid-scale eddy viscosity model", Phys. Fluids A, Vol. 3, No. 7, pp. 1760-1765, (1991).
 F. Nicoud and F. Ducros, "Subgrid-scale stress modeling based on the square of the velocity gradient tensor", Flow Turbul. Combust., Vol. 62, No. 3, pp. 183-200, (1999).
 G. Ghorbaniasl and C. Lacor, "Sensitivity of SGS models and of quality of LES to grid irregularity", Quality and Reliability of Large-Eddy Simulations, Eds. J. Meyers et al. Dordrecht, Springer, pp. 155-166, (2008).
 M. Zakyani, Simulation of turbulent diffusion flames using large eddy simulation and conditional moment closure, Ph.D. thesis, Vrije Universiteit Brussel, Brussels, Belgium, (2011).
 A. J. Chorin, "Numerical solution of the Navier-Stokes equations", Math. Comput., Vol. 22, No. 104, pp. 745-762, (1968).
 P. P. J. Stroomer, Turbulence and OH structures in flames, Ph.D. thesis, Delft University of Technology, Delft, Netherland, (1995).
 B. Merci, D. Roekaerts and B. Naud, "Study of the performance of three micromixing models in transported scalar PDF simulations of a piloted jet diffusion flame ("Delft flame III")", Combust. Flame, Vol. 144, No. 3, pp. 476-493, (2006).
 B. B. Dally, D. Fletcher and A. R. Masri, "Flow and mixing fields of turbulent bluff-body jets and flames", Combustion Theory and Modeling, Vol. 2, No. 2, pp. 193-219, (1998).
 B. B. Dally, A. R. Masri, R. S. Barlow, et al., "Instantaneous and mean compositional structure of bluff-body stabilized nonpremixed flames", Combust. Flame, Vol. 114, No. 1-2, pp. 119-148, (1998).
 A. Kempf, R. P. Lindstedt and J. Janicka, "Large-eddy simulation of a bluff-body stabilized nonpremixed flame", Combust. Flame, Vol. 144, No. 1-2, pp. 170-189, (2006).
 M. Klein, A. Sadiki and J. Janicka, "A digital filter based generation of inflow data for spatially developing direct numerical or large eddy simulations", J. Comput. Phys., Vol. 186, No. 2, pp. 652-665, (2003).
تعداد مشاهده مقاله: 497
تعداد دریافت فایل اصل مقاله: 200