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RISLarge Eddy Simulation of Lean Mixed-Mode Combustion Assisted by Partial Fuel Stratification in a Spark-Ignition Engine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Partial fuel stratification (PFS) is a promising fuel injection strategy to improve the stability of lean combustion by applying a small amount of pilot injection right before spark timing. Mixed-mode combustion, which ...
Heat Transfer Enhancement in a Rotating Wedge-Shaped Cooling Channel With Optimized Detached Guiding Pin-Fin
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experiments and numerical simulations are conducted to investigate the flow and heat transfer characteristics of the guiding pin-fin array in a rotating wedge-shaped channel that represents the internal cooling passage ...
Modeling Tangential Contact of Rough Surfaces With Elastic- and Plastic-Deformed Asperities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new tangential contact model between a rough surface and a smooth rigid flat is proposed in this paper. The model considers the contribution of both elastically deformed asperities and plastically deformed asperities to ...
Model Tests Investigating Spatial Tensile Behavior of Simulated Geosynthetic Reinforcement Material over Rigid Supports
Publisher: American Society of Civil Engineers
Abstract: A special device was designed, manufactured, and used to create a three-dimensional (3D) layout of rigid supports to investigate the spatial tensile behavior of the geosynthetic reinforcement material over rigid supports. ...
Interdecadal Change in the Intensity of Interannual Variation of Spring Precipitation over Southern China and Possible Reasons
Publisher: American Meteorological Society
Abstract: AbstractThe intensity of interannual variation of spring precipitation over southern China during 1979?2014 and possible reasons for it are investigated in this paper. There is a significant interdecadal change in the ...
Direct Numerical Simulation of Partial Fuel Stratification Assisted Lean Premixed Combustion for Assessment of Hybrid G-Equation/Well-Stirred Reactor Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Partial fuel stratification (PFS) is a promising fuel injection strategy to stabilize lean premixed combustion in spark-ignition (SI) engines. PFS creates a locally stratified mixture by injecting a fraction of the fuel, ...
Turbulent Flow and Heat Transfer Characteristics of Novel Vortex Ribs in a Rotating Channel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat transfer and pressure loss characteristics of a novel Vortex rib in a cooling channel have been studied both experimentally and numerically under the Reynolds numbers from 10,000 to 80,000 and rotation numbers from 0 ...
Geometric Design and Analysis of Novel Asymmetrical Rotors for Roots Vacuum Pumps
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Roots rotors dramatically determine the performance of Roots vacuum pumps. In order to develop new rotors with higher performance, a pair of novel asymmetrical rotors or eccentric involute rotors were proposed based on the ...
Numerical Study on the Dynamic Performance of Combined Sensible-Latent Heat Packed-Bed Thermocline Tank
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermal energy storage (TES) using thermocline technology with phase change materials (PCM) is a promising technique for peak-shaving operation in cogeneration units. One of the disadvantages of this connotation is the use ...
Experimental and Numerical Study on Dynamic Properties of Viscoelastic Microvibration Damper Considering Temperature and Frequency Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work presents an experimental and numerical study on the dynamic properties of viscoelastic (VE) microvibration damper under microvibration conditions at different frequencies and temperatures. The experimental results ...