Author(s)

Pankaj Kumar, Santosh Kumar Singh*

Affiliation(s)

Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India

Corresponding Author

Santosh Kumar Singh, email: fmsks84@gmail.com

ABSTRACT

The paper aimed to numerically study the flow structure at the wake of the bluff body with altered blockage ratio (BR) keeping the fixed aspect ratio (AR). The study was conducted by finite volume technique by means of commercial software ANSYS-FLUENT. The CFD analysis of the bluff body is mainly subjected to the lower subcritical Reynolds number range (5000 to 15,000) along with blockage ratio as an important factor. The flow parameters such as drag coefficient, pressure, and kinetic energy variations are analysed here with respect to the Reynolds number (R_e) and BR. It was observed that at fixed Re, the drag coefficient (C_D) reduce with an increase in the BR while decrease with increasing Re for a fixed value of BR.

KEYWORDS

Blockage ratio; Bluff body; Drag; Reynolds number.

CITE THIS PAPER

Pankaj Kumar, Santosh Kumar Singh. Flow past a bluff body subjected to lower subcritical reynolds number. Eurasia Journal of Science and Technology. 2019, 1(2): 8-13.

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