merged

Numerical Study of Flow Past A Solid Sphere at Moderate Reynolds
Number
Ili Amnani binti Razali
Supervisor: Dr. Wan Nurdiyana binti Wan Mansor
Bachelor of Technology (Environment)
School of Ocean Engineering
Universiti Malaysia Terengganu
The flow separation occurs whenever the point which it near the surface of sphere
started to fall at minimum point. In this study, the simulation value of Reynolds
number is within 50 ≤ Re ≤ 500 has been used. The Reynolds number contributes
towards the changes of the flow around the solid sphere. The wide formation of wake
is the caused that brought by the increasing Reynolds number. The unpredictable of
flow separation around a solid sphere when at different Reynolds number can be
reduce when the surface of sphere has been added with the roughness and edges.
Simulation analyses proved that the flow separation around the solid sphere increase
as the Reynolds number increase. The separation also separates early as the flow
increase. The formation of wake behind the solid sphere is getting wide. This is shows
that the flow behavior would affect the flow separation as the Reynolds number
increase.
12 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2019