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RISDye Visualization of In-Line Twin Synthetic Jets in Crossflows—A Parametric Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a parametric study on the interaction of twin circular synthetic jets (SJs) that are in line with a crossflow over a flat plate. The resulting vortex structures under different actuation, and flow ...
Aerodynamic Performance Improvement of a Wing Model Using an Array of Slotted Synthetic Jets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work deals with the improvement in aerodynamic performance of a NACA0025 wing model using an array of slotted synthetic jets (SJs). A novel SJ actuator was designed and located at 30% of the chord from the leading ...
Plume Model for Buoyancy-Induced Flow and Heat Transfer in Closed Rotating Cavities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The radial clearance between the rotating blades and stationary casing of a gas-turbine compressor depends on the radial growth of the rotating discs to which the blades are attached, and this growth depends on the ...
Effect of Radiation on Heat Transfer Inside Aeroengine Compressor Rotors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The blade clearance in aero-engine compressors is mainly controlled by the radial growth of the compressor discs, to which the blades are attached. This growth depends on the radial distribution of the disc temperature, ...
Theoretical Model of Buoyancy Induced Flow in Rotating Cavities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Ekmanlayer equations, which have previously been solved for isothermal source–sink flow in a rotating cavity, are derived for buoyancyinduced flow. Although the flow in the inviscid core is threedimensional and ...
Effect of Buoyancy-Induced Rotating Flow on Temperatures of Compressor Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Calculation of the clearances between the blades and casing of the high-pressure-compressor rotors in aeroengines involves calculating the radial growth of the corotating compressor disks. This requires the calculation of ...
Theoretical Model of Buoyancy-Induced Heat Transfer in Closed Compressor Rotors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cavities between the rotating compressor disks in aero-engines are open, and there is an axial throughflow of cooling air in the annular space between the center of the disks and the central rotating compressor shaft. ...
Use of Fin Equation to Calculate Nusselt Numbers for Rotating Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Conduction in thin disks can be modeled using the fin equation, and there are analytical solutions of this equation for a circular disk with a constant heattransfer coefficient. However, convection (particularly free ...
Buoyancy-Induced Flow and Heat Transfer in Compressor Rotors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The buoyancy-induced flow and heat transfer inside the compressor rotors of gas-turbine engines affects the stresses and radial growth of the compressor disks, and it also causes a temperature rise in the axial throughflow ...
Study on Semi-active Control of Seismic Bend Torsion Coupling for Curved Bridge
Publisher: American Society of Civil Engineers
Abstract: Theoretical research and earthquake damage investigation indicate that there is bend torsion coupling vibration for curved bridge when earthquake occurs. To reduce the bend torsion coupling seismic response, the approach ...