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RISOne-Dimensional Modeling for Pulsed Flow Twin-Entry Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One-dimensional (1D) modeling is critical for turbomachinery unsteady performance prediction and system response assessment of internal combustion engines. This paper uses a novel 1D modeling (TURBODYNA) and proposes two ...
Understanding of Secondary Flows and Losses in Radial and Mixed Flow Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Radial or mixed flow turbines are very common in industrial application, spanning turbochargers, small turbines for power generation, and energy recovery systems. Secondary flows have received a limited attention in the ...
TURBODYNA: A Generic One-Dimensional Dynamic Simulator for Radial Turbomachinery
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The turbocharged piston-driven engines are widely used in high altitude long endurance unmanned aerial vehicles (HALE UAVs). Repeated actions of engine pistons and valves give rise to engine pulsations resulting in intensive ...
Heat Transfer Enhancement in Pulsating Flows: A Bayesian Approach to Experimental Correlations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This research focuses on improving the modeling of heat transfer effects in pulsating exhaust flows. We address the challenges of understanding oscillating flow by employing the Metropolis–Hastings Markov Chain Monte Carlo ...
Numerical and Experimental Investigation of a Low Order Radial Turbine Model for Engine-Level Optimization of Turbocharger Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the development and validation of a meanline model by means of numerical and experimental methods, to determine it's feasibility as an optimization tool for turbocharger matching. Using a parametric ...
Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbocharging is the key technique to improve engine-specific power and reduce CO2 emissions of a piston-driven engine. Repeated actions of engine pistons and valves give rise to engine pulsations resulting in intensive ...
Modeling of Dynamic Response of a Radial Turbine to Pulsatile Incoming Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady response of a turbine exposed to pulsatile incoming flow is studied via the analytical model in this article. First, the response of output torque of the turbine to pulsatile condition is theoretically studied ...
Heat Transfer Enhancement in Pulsating Flows: A Bayesian Approach to Experimental Correlations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This research focuses on improving the modeling of heat transfer effects in pulsating exhaust flows. We address the challenges of understanding oscillating flow by employing the Metropolis–Hastings Markov Chain Monte Carlo ...
Generative Constructal Design of a Multiphysics Heat Sink for Managing Transient Thermal Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. In this article, we automate the constructal design method to design a multiphysics heat-sink with phase-change material for transient thermal loads. By combining high-conductivity material (HCM) and phase change ...
Three-Dimensional Computational Loss Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a detailed loss analysis of a centrifugal compressor stage with a vaned diffuser for application in a heavy-duty engine turbocharger. The analysis is carried out in order to investigate the loss ...