Abstract
By analyzing the characteristics of low Mach number perfect gas flows, a novel Slightly Compressible Model (SCM) for low Mach number perect gas flows is derived. In view of numerical calculations, this model is proved very efficient, for it is kept within thep-v frame but does not have to satisfy the time consuming divergence-free condition in order to get the incompressible Navier-Stokes equation solution. Writing the equations in the form of conservation laws, we have derived the characteristic systems which are necessary for numerical calculations. A cell-centered finite-volume method with flux difference upwind-biased schemes is used for the equation solutions and a new Exact Newton Relaxation (ENR) implicit method is developed. Various computed results are presented to validate the present model. Laminar flow solutions over a circular cylinder with wake developing and vortex shedding are presented. Results for inviscid flow over a sphere are compared in excellent agreement with the exact analytic incompressible solution. Three-dimensional viscous flow solutions over sphere and prolate spheroid are also calculated and compared well with experiments and other incompressible solutions. Finally, good convergent performances are shown for sphere viscous flows.
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References
Batchlor GK. An Introduction to Fluid Dynamics. Cambridge University Press, 1967
Chorin AJ. A numerical method for solving incompressible viscous flow problems.J Comp Phys, 1967, 2: 12–26
Rogers SE, Kwak D. Upwind differencing scheme for time-accurate incompressible Navier-Stokes equations.AIAA J, 1990, 28: 253–262
Deng XG, Zhuang FG. Two new methods for low Mach number flow calculation. In: Hui WH, ed. Proc of First Asian Computational Fluid Dynamics Conference, Hong Kong, 1995-01-16-19. Hong Kong: Hong Kong Univ of Sci & Tech Press, 1995, 1179–1188
Deng XG. New methods for low Mach number flow calculations. Post Doctor Report, Beijing University of Aeronautics and Astronautics. Beijing: BUAA Press, Dec. 1994
Deng XG, Zhuang FG. On low Mach number perfect gas flow calculations. AIAA Paper 99-3317. 14th AIAA Computational Fluid Dynamic Conference, USA. 1999
Shapiro AH. The Dynamics and Thermodynamics of Compressible Fluid Flow. The Ronald Press Company, 1953
Lighthill MJ. Boundary layer theory. In: Rosenhead L, ed. Laminar Boundary Layers. Rosenhead, L, ed. Oxford University Press, 1963
Whitfield DL, Taylor LK. Discretized Newton-Relaxation solution of high resolution flux-difference split schemes. AIAA Paper 91-1539, June, 1991
Yoon S, Jameson A. Lower-upper symmetric Gauss Seidel method for the Euler and Navier-Stokes equations.AIAA J, 1987, 26: 1025–1026
Rosenfeld M, Kwak D, Vinokur M. A solution method for the unsteady and incompressible Navier-Stokes equations in generalized coordinate system. AIAA Paper 88-0718, 1988
Lecointe Y, Piquest J. On the use of several compact methods for the study of unsteady incompressible viscous flow round a circular cylinder.Computers and Fluids, 1984, 12: 255–280
Kovasznay LSG. Hot-wire investigation of the wake behind cylinders at low Reynolds numbers.Proceedings of the Royal Society of London, Series A, 1949, 198(1053): 174–190
Roshko A. On the development of turbulent wakes from vortex streets. NACA Rep. 1191, 1954
Dennis SCR, Walker JDA. Calculations of the steady flow past a sphere at low and moderate Reynolds numbers.J Fluids Mech, 1971, 48: 771–789
Meier HU, Cebeci T. Flow characteristics of a body of revolution at incidence. In: 3rd Symp on Num & Phys Aspects of Aerodynamic Flows, Long Beach, California, Jan, 1985
Vatsa VN, Thomas JL. Navier-Stokes computations of spheroids at angle of attack. AIAA paper 87-2627, 1987
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The project supported by the Basic Research on Frontier Problems in Fluid and Aerodynamics in China and the National Natural Science Foundation of China (19772069)
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Xiaogang, D., Fenggan, Z. A novel slightly compressible model for low Mach number perfect gas flow calculation. Acta Mech Sinica 18, 193–208 (2002). https://doi.org/10.1007/BF02487948
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DOI: https://doi.org/10.1007/BF02487948