SAKİN, Ali TOFAS-FIAT Automotive Factory, TURKEY , KARAGÖZ, İrfan Uludag University - Engineering Faculty - Dept of Mechanical Engineering, Turkey

NUMERICAL INVESTIGATION OF SURFACE ROUGHNESSEFFECTS ON THE FLOW FIELD IN A SWIRL FLOW

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The aim of this study is to investigate axial and tangential velocity profiles, turbulent dissipationrate, turbulent kinetic energy and pressure losses under the influence of surface roughness for the swirlingflow in a cyclone separator. The governing equations for this flow were solved by using Fluent CFD code.First, numerical analyses were run to verify numerical solution and domain with experimental results.Velocity profiles, turbulent parameters and pressure drops were calculated by increasing inlet velocity from10 to 20 m/s and roughness height from 0 to 4 mm. Analyses of results showed that pressure losses aredecreased and velocity field is considerably affected by increasing roughness height.

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Swirl flow , cyclone separators , roughness height

Uludağ University Journal of The Faculty of Engineering

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