Kim Boon Lua
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View article: DBD-streamer mode transition of atmospheric-pressure plasma jet applied on water with varying distance and AC power
DBD-streamer mode transition of atmospheric-pressure plasma jet applied on water with varying distance and AC power Open
The discharge of atmospheric-pressure plasma jet (APPJ) applied on the water was studied by varying an air gap between a powered electrode and the water, and the alternating current power. It was found that the streamers were converged by …
View article: Numerical investigation of in-line and staggered fins arrangements on liquid mixer
Numerical investigation of in-line and staggered fins arrangements on liquid mixer Open
This paper numerically analyzed the liquid mixing performance of a T-mixer having fins in two distinct arrangements, i.e., in-line and staggered. The effects of fin arrangements on the liquid flow characteristics in the mixing channel are …
View article: Drag reduction study of naturally occurring oscillating axial flow induced by helical corrugated surface in Taylor–Couette flow
Drag reduction study of naturally occurring oscillating axial flow induced by helical corrugated surface in Taylor–Couette flow Open
This study investigates drag reduction capability of naturally occurring-oscillating axial secondary flow (ASF) induced by helical-corrugated surface in Taylor–Couette flow (TCFHelical) for three values of pitch to wavelength ratios (P* = …
View article: Drag reduction study of naturally occurring oscillating axial flow induced by helical corrugated surface in Taylor Couette flow
Drag reduction study of naturally occurring oscillating axial flow induced by helical corrugated surface in Taylor Couette flow Open
This study investigates drag reduction capability of naturally-occurring-oscillating axial secondary flow(ASF) induced by helical-corrugated surface in Taylor Couette flow(TCFHelical) for three values of pitch to wavelength-ratios(P* =1,2,…
View article: Computational Investigation of Multiple Oscillating Hydrofoils and its Effect on Thrust Augmentation
Computational Investigation of Multiple Oscillating Hydrofoils and its Effect on Thrust Augmentation Open
Previous investigations of flapping hydrofoils for the purpose of thrust production have been limited to one or two in tandem. Tandem foils were found to have superior performance because the performance of the aft foil was augmented by th…
View article: The performance of an acoustic levitator
The performance of an acoustic levitator Open
An acoustic levitator uses an array of ultrasonic transducers to generate a standing acoustic pressure field which exerts a radiation force on small particles, allowing the particles to be trapped, relocated, separated or combined. Experim…
View article: Simulation on Vortex Induced Vibration of Circular Cylinder
Simulation on Vortex Induced Vibration of Circular Cylinder Open
In order to study the vortical flow field and the vibration caused by fluid-structure interaction (FSI), an efficient simulation setup was established. The simulation made use of the built-in Deforming Mesh function, Semi-Implicit Method f…
View article: Vortex-induced vibration wind energy harvesting by piezoelectric MEMS device in formation
Vortex-induced vibration wind energy harvesting by piezoelectric MEMS device in formation Open
A silicon chip integrated microelectromechanical (MEMS) wind energy harvester, based on the vortex-induced vibration (VIV) concept, has been designed, fabricated, and tested as a proof-of-concept demonstration. The harvester comprises of a…
View article: Numerical study on wide gap Taylor Couette flow with flow transition
Numerical study on wide gap Taylor Couette flow with flow transition Open
This study aims to investigate the possible sources of non-axisymmetric disturbances and their propagation mechanism in Taylor Couette flow (TCF) for wide gap problems using direct numerical simulation with a radius ratio of 0.5 and Reynol…
View article: On Taylor-Couette flow: Inferences of near-wall effect
On Taylor-Couette flow: Inferences of near-wall effect Open
Flow behavior in the near-wall region, the variation of natural wavelength (a pair of counter rotating vortices) and its influence on the normalized torque in Taylor vortex flow (TVF), transition phase of Taylor vortex flow into wavy vorte…
View article: Thrust Enhancement On A Two Dimensional Elliptic Airfoil In A Forward Flight
Thrust Enhancement On A Two Dimensional Elliptic Airfoil In A Forward Flight Open
This paper presents results of numerical and experimental studies on a two-dimensional (2D) flapping elliptic airfoil in a forward flight condition at Reynolds number of 5000. The study is motivated from an earlier investigation which show…