THE STUDY OF EFFECT OF SURFACE ROUGHNESS ON TURBULENT FLOW FIELD IN A DUCT

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KARAMAD E.; RAHIMZADEH H.; SHAMS MEHRZAD

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Paper Information

Journal: AMIRKABIR Year:2006 | Volume:17 | Issue:64-B (TOPICS IN: MECHANICAL ENGINEERING & INDUSTRIAL ENGINEERING) Page(s): 1-10

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Title

THE STUDY OF EFFECT OF SURFACE ROUGHNESS ON TURBULENT FLOW FIELD IN A DUCT

Author(s)

KARAMAD E. | RAHIMZADEH H. | SHAMS MEHRZAD

Keywords

TURBULENT FLOW FIELDQ2

ROUGH SURFACEQ2

REYNOLDS STRESS MODELQ3

Abstract

In this research effects of surface roughness on TURBULENT FLOW FIELD (2-D) in a rectangular duct are investigated by Direct Roughness Simulation (DRS) for the first time. In traditional methods, wall functions are normally corrected and applied for considering surface roughness. However, in present method Direct. Roughness Simulation (DRS) without using roughness modeling. In this way, the wall surface roughness scheme is considered like a saw tooth with triangular shape and random height. Reynolds stresses which appear in the Navier-Stock equations are modeled with RSTM method (with corrective coefficients) and solved with the SIMPLE method, using the FLUENT software. The fluctuating components of fluid velocity are determined by CFWN model.In compare with the traditional methods, the present method results for fluctuating components of fluid velocity are more compatible with experimental data.

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APA: Copy

KARAMAD, E., RAHIMZADEH, H., & SHAMS, MEHRZAD. (2006). THE STUDY OF EFFECT OF SURFACE ROUGHNESS ON TURBULENT FLOW FIELD IN A DUCT. AMIRKABIR, 17(64-B (TOPICS IN: MECHANICAL ENGINEERING & INDUSTRIAL ENGINEERING)), 1-10. SID. https://sid.ir/paper/979/en

Vancouver: Copy

KARAMAD E., RAHIMZADEH H., SHAMS MEHRZAD. THE STUDY OF EFFECT OF SURFACE ROUGHNESS ON TURBULENT FLOW FIELD IN A DUCT. AMIRKABIR[Internet]. 2006;17(64-B (TOPICS IN: MECHANICAL ENGINEERING & INDUSTRIAL ENGINEERING)):1-10. Available from: https://sid.ir/paper/979/en

IEEE: Copy

E. KARAMAD, H. RAHIMZADEH, and MEHRZAD SHAMS, “THE STUDY OF EFFECT OF SURFACE ROUGHNESS ON TURBULENT FLOW FIELD IN A DUCT,” AMIRKABIR, vol. 17, no. 64-B (TOPICS IN: MECHANICAL ENGINEERING & INDUSTRIAL ENGINEERING), pp. 1–10, 2006, [Online]. Available: https://sid.ir/paper/979/en

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