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Computational Aeroacoustics for a Cold, Non-Ideally Expanded Aerospike Nozzle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In supersonic aerospace applications, aerospike nozzles have been subject of growing interest. This study sheds light on the noise components of a cold jet exhausting an aerospike nozzle. Implicit large eddy simulations ...
Swirling Flow Effects on the Aeroacoustic Signature of an Aerospike Nozzle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Supersonic nozzles are not always operated at design conditions. The total pressure, temperature, and velocity distributions at the nozzle inlet plane are often characterized by inhomogeneities, conditions dictated by the ...
Aerothermodynamics and Exergy Analysis in Radial Turbine With Heat Transfer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study was motivated by the difficulties to assess the aerothermodynamic effects of heat transfer on the performance of turbocharger turbine by only looking at the global performance parameters, and by the lack of ...
Influence of Upstream Exhaust Manifold on Pulsatile Turbocharger Turbine Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This research was primary motivated by limited efforts to understand the effects of secondary flow and flow unsteadiness on the heat transfer and the performance of a turbocharger turbine subjected to pulsatile flow. In ...
Influence of Pulse Characteristics on Turbocharger Radial Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbocharging has been demonstrated as a key technology to enhance fuel efficiency in the automotive field that faces increasingly stringent emission regulations. Due to the reciprocating engine, pulsating flow feds the ...
Flow Induced Energy Losses in the Exhaust Port of an Internal Combustion Engine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical study of the flow in the exhaust port geometry of a Scania heavyduty diesel engine is performed using the large eddy simulation (LES) and an unsteady ReynoldsAveraged Navier–Stokes (URANS) simulation approach. ...
Turbocharger Radial Turbine Response to Pulse Amplitude
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Under on-engine operating conditions, a turbocharger turbine is subject to a pulsating flow and, consequently, experiences deviations from the performance measured in gas-stand flow conditions. Furthermore, due to the high ...