DIRECT NUMERICAL SIMULATION OF FULLY-DEVELOPED TURBULENT CHANNEL FLOWWITH SLIP BOUNDARY CONDITION ON ONE OF THE WALLS

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MOOSAIE AMIN; ZARGHAMI DEHAGHANI ZAHRA

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Journal Paper

Paper Information

Journal: JOURNAL OF MARINE ENGINEERING Year:2016 | Volume:12 | Issue:23 Page(s): 0-0

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Title

DIRECT NUMERICAL SIMULATION OF FULLY-DEVELOPED TURBULENT CHANNEL FLOWWITH SLIP BOUNDARY CONDITION ON ONE OF THE WALLS

Author(s)

MOOSAIE AMIN | ZARGHAMI DEHAGHANI ZAHRA | Issue Writer Certificate

Keywords

DIRECT NUMERICAL SIMULATION

SLIP BOUNDARY CONDITION

HYDROPHOBIC COATING

DRAG REDUCTION

FULLY-DEVELOPED CHANNEL FLOW

Abstract

In this study, the results of a DIRECT NUMERICAL SIMULATION of turbulent DRAG REDUCTION ina channel flow by HYDROPHOBIC COATING at a nominal shear Reynolds number of Re t=180 are reported. Slip condition is imposed on the lower wall whereas the upper wallhas no-slip condition. For this purpose, the use is made of a numerical simulation of three-dimensional, time-dependent Navier-Stokes equations for the incompressibleflow of a Newtonian fluid. Finally, statistical quantities of turbulent flow (specificallythe mean velocity profile, the root-mean-square of velocity fluctuations in differentdirections and the Reynolds shear stress are shown and discussed. The results confirmthat by increasing the amount of slip on the lower wall, the bulk velocity passingthrough the channel increases. Also, the variation of root-mean-square of velocityfluctuations shows a similar behavior in the vicinity of the upper wall. But, theirgeneral trend is different in the proximity of the lower wall. Moreover, a change in theshape of the Reynolds shear stress profile from a minimum close to the lower walltowards a maximum close to the upper wall is observed.

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APA: Copy

MOOSAIE, AMIN, & ZARGHAMI DEHAGHANI, ZAHRA. (2016). DIRECT NUMERICAL SIMULATION OF FULLY-DEVELOPED TURBULENT CHANNEL FLOWWITH SLIP BOUNDARY CONDITION ON ONE OF THE WALLS. JOURNAL OF MARINE ENGINEERING, 12(23), 0-0. SID. https://sid.ir/paper/691821/en

Vancouver: Copy

MOOSAIE AMIN, ZARGHAMI DEHAGHANI ZAHRA. DIRECT NUMERICAL SIMULATION OF FULLY-DEVELOPED TURBULENT CHANNEL FLOWWITH SLIP BOUNDARY CONDITION ON ONE OF THE WALLS. JOURNAL OF MARINE ENGINEERING[Internet]. 2016;12(23):0-0. Available from: https://sid.ir/paper/691821/en

IEEE: Copy

AMIN MOOSAIE, and ZAHRA ZARGHAMI DEHAGHANI, “DIRECT NUMERICAL SIMULATION OF FULLY-DEVELOPED TURBULENT CHANNEL FLOWWITH SLIP BOUNDARY CONDITION ON ONE OF THE WALLS,” JOURNAL OF MARINE ENGINEERING, vol. 12, no. 23, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/691821/en

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