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RISTraffic Flow Theory–Based Stochastic Optimization Model for Work Zones on Two-Lane Highways
Publisher: American Society of Civil Engineers
Abstract: Road maintenance is essential to ensure a safe and efficient transportation system. Unfortunately, work zones can give rise to significant delays to road users. In this paper, two major limitations in the current work zone ...
A Two-Dimensional Conjugate Heat Transfer Model for Forced Air Cooling of an Electronic Device
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermal analysis of forced air cooling of an electronic component is modeled as a two-dimensional conjugate heat transfer problem. The velocity field in a constricted channel is first computed. ...
Bending Stability of Corrugated Tubes With Anisotropic Frustum Shells
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thin-walled corrugated tubes that have a bending multistability, such as the bendy straw, allow for variable orientations over the tube length. Compared to the long history of corrugated tubes in practical applications, ...
Flow Physics Leading to System Instability in a Centrifugal Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The off-design performance in a centrifugal pump is investigated experimentally. The objective is to identify flow features that lead to the onset of surge as the fundamental pumping system ...
Navier–Stokes and Potential Calculations of Axial Spacing Effect on Vortical and Potential Disturbances and Gust Response in an Axial Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of blade row axial spacing on vortical and potential disturbances and gust response is studied for a compressor stator/rotor configuration near design and at high loadings using ...
Reduction of Unsteady Blade Loading by Beneficial Use of Vortical and Potential Disturbances in an Axial Compressor With Rotor Clocking
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper demonstrates reduction of stator unsteady loading due to forced response in a large-scale, low-speed, rotor/stator/rotor axial compressor rig by clocking the downstream rotor. Data from ...
Morphological Characteristics of Chars Obtained from Low-Temperature Pyrolysis of Pulverized Lignite
Publisher: American Society of Civil Engineers
Abstract: Staged coal conversion, with pyrolysis as its foundation, is one clean and effective coal usage technology. In this study, the structural and morphological characteristics of Ximeng lignite chars obtained from low-temperature ...
Locking Zipper-Coupled Origami Tubes for Deployable Energy Absorption
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Energy absorption devices are widely used to mitigate damage from collisions and impact loads. Due to the inherent uncertainty of possible impact characteristics, passive energy absorbers with fixed mechanical properties ...
Numerical Concept Study for Part-Load Operation of the Ansaldo Constant Pressure Sequential Combustion System Operated in Rich–Dilute–Lean Mode Using Ammonia-Based Gaseous Fuels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Two earlier concept studies, exploiting high-resolution numerical simulations, have shown that Ansaldo's constant pressure sequential combustor (CPSC) at full load is theoretically capable of switching from ...
Comparative Validation Study on Identification of Premixed Flame Transfer Function
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flame transfer function (FTF) of a premixed swirl burner was identified from a time series generated with computational fluid dynamics simulations of compressible, turbulent, reacting flow ...