A5029600455- Turbomachinery Performance and Optimization
- Heat Transfer Mechanisms
- Heat Transfer and Optimization
- Computational Fluid Dynamics and Aerodynamics
- Combustion and flame dynamics
- Engineering Applied Research
- Refrigeration and Air Conditioning Technologies
- Aerodynamics and Fluid Dynamics Research
- Fluid Dynamics and Turbulent Flows
- Heat Transfer and Boiling Studies
- Advanced Aircraft Design and Technologies
- Rocket and propulsion systems research
- Aerodynamics and Acoustics in Jet Flows
- Advanced Combustion Engine Technologies
- Spacecraft and Cryogenic Technologies
- Combustion and Detonation Processes
- Radiative Heat Transfer Studies
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Gas Dynamics and Kinetic Theory
- Erosion and Abrasive Machining
- Fluid Dynamics and Vibration Analysis
- Heat transfer and supercritical fluids
- Cyclone Separators and Fluid Dynamics
- Icing and De-icing Technologies
- Ranque-Hilsch vortex tube
Pusan National University
2013-2024
Delft University of Technology
2024
Agency for Defense Development
2015
Pennsylvania State University
1991-2007
Samsung (South Korea)
2005
Busan National University of Education
2002
This study focuses on a new image processing based color capturing technique for the quantitative interpretation of liquid crystal images used in convective heat transfer studies. The present method is highly applicable to surfaces exposed heating gas turbine engines. shows that, single mode, many colors appearing surface strongly correlate with local temperature. A very accurate approach using an experimentally determined linear hue versus temperature relation possible. process discussed...
This study focuses on a new image processing based color capturing technique for the quantitative interpretation of liquid crystal images used in convective heat transfer studies. The present method is highly applicable to surfaces exposed heating gas turbine engines. shows that, single-crystal mode, many colors appearing surface correlate strongly with local temperature. A very accurate approach using an experimentally determined linear hue versus temperature relation possible....
The thermal and fluid-flow characteristics of the rectangular-winglet, delta-winglet-upstream (DWU), delta-winglet-downstream (DWD) curved vortex generators (CVGs) are computationally analyzed in this study. Polar coordinates based on tube center considered to define CVG positions, thereby facilitating a parametric study effects position angle (α) radial distance (r) CVGs. resulting heat-transfer enhancement, pressure loss, flow patterns have been detail. When CVGs placed at α=30°, mixed...
The write performance of the 1.8-V 64-Mb phase-change random access memory (PRAM) has been improved, which was developed based on 0.12-/spl mu/m CMOS technology. For improvement RESET and SET distributions, a cell current regulator scheme multiple step-down pulse generator were employed, respectively. read time are 68 ns 180 ns,
Accurate determination of convective heat transfer coefficients on complex curved surfaces is essential in the aerothermal design and analysis propulsion system components. The are geometrically very most applications. This study focuses evaluation a hue capturing technique for interpretation liquid crystal images from surface. Impulsively starting experiments square to rectangular transition duct reported. present different existing steady-state studies. A real-time conversion process...
Air transportation has been being expanded remarkably, and its growth is expected to continue in the coming decades. Environmental issues airlines require gas turbine manufacturers produce environmentally friendly gas-turbine engines with lower emissions improved specific fuel consumption. These requirements can be met by incorporating heat exchangers into turbines for intercooling recuperation. Relevant research such areas as design of a exchanger matrix, materials selection, manufacturing...