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A Study on Flowfield-Dependent Mixed Explicit-Implicit Method in Heat and Fluid Dynamics Problems
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 Title & Authors
A Study on Flowfield-Dependent Mixed Explicit-Implicit Method in Heat and Fluid Dynamics Problems
Mun, Su-Yeon; Song, Chang-Hyeon; Lee, Chung-Won;
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High-speed and low-speed flows are simulated numerically by flowfield-dependent mixed explicit-implicit (FDMEI) method. This algorithm depends on implicitness parameters of convection, diffusion, diffusion gradients, and source terms which are calculated from the changes of local Mach, Reynolds, Peclet, and Damkohler numbers between adjacent nodes. Convection phenomena or shock waves are resolved from Mach number-dependent implicitness parameters whereas diffusion or viscous actions are simulated by Reynolds number or Peclet number-dependent implicitness parameters. Fluctuation components of all variables are properly accommodated spatially and temporally in the FDMEI procedure. To illustrate, some benchmark example problems are presented for comparisons of the FDMEI results with other available data. These results appear to be encouraging and point toward the need for further investigations of the FDMEI theory.
Flowfield-dependent Mixed Explicit-Implicit Generalized Galerkin Method;Finite Element Method;Implicitness Parameter;
 Cited by
유동변수 파라미터에 의한 혼합 내-외재적 열-유동장 수치해석 방법 연구,문수연;송창현;이충원;

대한기계학회논문집B, 2001. vol.25. 7, pp.989-996 crossref(new window)
조동우, 손창현, 문수연, 이충원, 2001, '공기 유입각도의 변화에 따른 액체램제트 연소기내의 3차원 유동해석,' 제16회 한국추진공학회 학술발표회 논문초록집, p. 39

Karki, K. C. and Patankar, S. V., 1989 'Pressure Based Calculation Procedure for Viscous Flows at All Speeds in Arbitrary Configurations,' AIAA Journal, Vol. 27, No. 9, pp. 1167-1174

Demirdzic, I, Lilek, Z., Peric, M., 1993, 'A Collocated Finite Volume Method for Predicting Flows at All Speeds,' Int. J. Numer. Method in Fluids, Vol. 16, pp. 1029-1050 crossref(new window)

문수연, 손창현, 이충원, 2001, '화학반응이 있는 난류경계층과 충격파의 상호작용에 대한 수치해석,' 대한기계학회 B권 심사중

Chen, K. H., Shuen, J. S., and Mularz, E., 1995, 'A Comprehensive Study of Numerical Algorithms for Three-Dimensional Turbulent Non-Equilibrium Viscous Flows,' AIAA 95-0800

Moon, S. Y., 1998, 'Applications of FDMEI to Chemically Reacting Shock Wave Boundary Layer Interactions,' Ph. D. dissertation, UAH press

문수연, 손창현, 이충원, 2001, '고속 흐름에서의 충격파와 난류경계층의 상호작용에 관한 수치적 연구,' 대한기계학회 B 권 제 25권 제 3 호 pp. 322-329

Pepper, D. and Humphrey, J. W., January 1990 'A hybrid finite element method for compressible flow,' AIAA Paper 90-0399

Brooks, A. N. and Hughes, T. J. R., 1982, 'Steamline Upwind/Petrov-Galerkin Formulations for Convection Dominated Flows with Particular Emphasis on the incompressible Navier-Stokes Equations,' Comp. Meth. Appl. Mech. Engng., 32, pp. 199-259

Godunov, S. K., 1976, 'Numerical Solution of Multidimensional Problems in Gas Dynamics,' Nauka, Mosco

Eidelman, S., Colella, A. D., Shreeve, R. P., 1984, 'Application of Godunov Method and Its Second-Order Extension to Cascade Flow Modeling,' AIAA Journal, Vol. 22, pp. 1609-1615

안희섭, 손창현, 문수연, 2000, 'SIMPLE 알고리즘을 이용한 압축성 유동해석', 한국전산유체공학회