Comparison of three different numerical schemes for 2D steady incompressible lid-driven cavity flow
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 384
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شناسه ملی سند علمی:
JR_JCARME-7-2_002
تاریخ نمایه سازی: 20 آبان 1397
چکیده مقاله:
In this study, a numerical solution of 2D steady incompressible lid-driven cavity flow is presented. Three different numerical schemes were employed to make a comparison on the practicality of the methods. An alternating direction implicit scheme for the vorticity-stream function formulation, explicit and implicit schemes for the primitive variable formulation of governing Navier-Stokes equations were attempted. A fairly fine uniform grid was adopted for all the cases after a technical procedure was applied tocome up with the proper mesh size that would make the solution roughly independent of mesh quality. The solutions obtained for different Reynolds numbers are presented and compared. Superiority of numerical approaches was investigated and compared to benchmark solutions available in the literature. Based on the results of the present research, it can be claimed that explicit scheme used for primitive variable formulation can be only half the way (as in Re=2500 for explicit to Re=5000 for ADI and implicit schemes) as successful as the other two numerical methods due to its relative simplicity
کلیدواژه ها:
نویسندگان
S Gharahjeh
Hydraulic division, Middle East Technical University, Ankara, ۰۶۸۰۰, Turkey
A Ashraf
Hydraulic division, Middle East Technical University, Ankara, ۰۶۸۰۰, Turkey
G Mahtabi
Department of Water Engineering, University of Zanjan, Zanjan, ۴۵۳۷۱-۳۸۷۹۱, Iran