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Numerical Study of Double-Jet Film Cooling on a Semi-Cylindrical Leading Edge
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical investigation is performed for double-jet film cooling (DJFC) on a semi-cylindrical leading edge under four momentum flux ratios. Three rows of film cooling holes are distributed on the leading edge, wherein ...
A Hybrid Analytical, Solid Modeler and Feature-Based Methodology for Extracting Tool-Workpiece Engagements in Turning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to optimize turning processes, cutting forces need to be accurately predicted. This in turn requires accurate extraction of the geometry of tool-workpiece engagements (TWE) at critical ...
Adaptive Control of a Base Isolated System for Protection of Building Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, we present two adaptive backstepping control algorithms for a second-order uncertain hysteretic structural system found in base isolation scheme for seismic active protection of ...
Numerical Investigation on Aerodynamic and Combustion Performance of Chevron Mixer Inside an Afterburner
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To improve the performance of the afterburner for the turbofan engine, an innovative type of mixer, namely, the chevron mixer, was considered to enhance the mixture between the core flow and the bypass flow. Computational ...
Unsteady Interactions Between Axial Turbine and Nonaxisymmetric Exhaust Hood Under Different Operational Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The exhaust system in condensing steam turbines is used to recover leaving kinetic energy of the last stage turbine, while guiding the flow from turbine to condenser. The flows in the exhaust ...
Effects of Pin-Fin Shapes on Mesh-Fed Slot Film Cooling for a Flat-Plate Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental and numerical research is performed to illustrate the effects of pin-fin shapes on mesh-fed slot film cooling performance on a flat-plate model. Three types of pin-fin shapes (such as circular, elliptical, and ...
Numerical Investigation of the Aerodynamic and Infrared Radiation Characteristics of Spherical Convergent Flap Nozzles
Publisher: American Society of Civil Engineers
Abstract: A number of numerical predictions are performed to evaluate the aerodynamic and infrared radiation characteristics of spherical convergent flap nozzles (SCFN). The accuracy of the computations was verified by comparing the ...
Dimethyl Sulfoxide Separating Waste Printed Circuit Boards by Dissolving Polymer Materials
Publisher: American Society of Civil Engineers
Abstract: The separation of waste printed circuit boards (WPCB) has been a bottleneck in WPCB resource processing. In this study, the separation of WPCBs was performed using dimethyl sulfoxide (DMSO) as a solvent by dissolving polymer ...
The Experimental Investigation of Impinging Heat Transfer of Pulsation Jet on the Flat Plate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A series of tests were performed for the pulsating jet impingement heat transfer by varying the Reynolds number (5000 ≤ Re ≤ 20,000), operation frequency (10 Hz ≤ f ≤ 25 Hz), and dimensionless nozzle-to-surface distance ...
Dynamic Effects on Steel Frames with Concrete Slabs under a Sudden Edge-Column Removal Scenario
Publisher: ASCE
Abstract: The dynamic effect of structures under column removal scenarios is investigated by conducting comparative experiments on two identical steel frames with concrete slabs. One frame suffers from a static edge-column loss, ...