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RISExperimental Analysis, Modeling, and Control of Volumetric Radial-Piston Pumps
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental-theoretical study has been carried out on high-pressure volumetric radial-piston pumps for diesel fuel injection systems. The dependence of the pump inducted flow rate on speed ...
Numerical-Experimental Study and Solutions to Reduce the Dwell-Time Threshold for Fusion-Free Consecutive Injections in a Multijet Solenoid-Type CR System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In “multijet” common rail (CR) diesel injection systems, when two consecutive injection current pulses approach each other, a merging of the two injections into a single one can occur. Such ...
Development and Application of a Complete Multijet Common-Rail Injection-System Mathematical Model for Hydrodynamic Analysis and Diagnostics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A rather complete mathematical model for a common-rail injection-system dynamics numerical simulation was developed to support experimentation, layout, and control design, as well as performance ...
Prediction of Combustion Parameters, Performance, and Emissions in Compressed Natural Gas and Gasoline SI Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The simulation of heat release, flame propagation speeds, and pollutant formation was carried out in both a turbocharged compressed natural gas (CNG) engine and a multivalve naturally aspirated ...
Nonlinear Versus Linear Stress-Strain Relations in Engine Turbulence Modeling Under Swirl and Squish Flow Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A general form of the stress-strain constitutive relation was introduced for the application of two nonlinear k-ε turbulence models, namely, the algebraic Reynolds stress model of and (1993, “ ...
Multidimensional Modeling of Natural Gas Jet and Mixture Formation in Direct Injection Spark Ignition Engines—Development and Validation of a Virtual Injector Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: During the last few years, the integration of CFD tools in the internal combustion (IC) engine design process has continually increased, allowing time and cost savings as the need for experimental ...
Experimental Investigation of Dynamics Effects on Multiple-Injection Common Rail System Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fundamental aspects of Common Rail (CR) fuel-injection-system dynamics were investigated, paying specific attention to the wave propagation induced pressure oscillations and to their relationships ...
Multidimensional Predictions of In-Cylinder Turbulent Flows: Contribution to the Assessment of k-ε Turbulence Model Variants for Bowl-in-Piston Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Multidimensional computational fluid dynamics (CFD) codes with reliable turbulence models are useful investigation and design tools for internal combustion engines, in-cylinder flow phenomena being ...
A Comprehensive Thermodynamic Approach to Acoustic Cavitation Simulation in High-Pressure Injection Systems by a Conservative Homogeneous Two-Phase Barotropic Flow Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A general conservative numerical model for the simulation of transmission-line unsteady fluid dynamics has been developed and applied to high-pressure injection systems. A comprehensive thermodynamic ...
Premixed-Diffusive Multizone Model for Combustion Diagnostics in Conventional and PCCI Diesel Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new multizone premixed-diffusive combustion model has been developed, assessed, and applied to diagnose the burning process and emission formation in a conventional and in a premixed charge ...