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Numerical Study on Aeroelastic Instability for a Low-Speed Fan
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Over recent years, engine designs have moved increasingly toward low specific thrust cycles to deliver significant specific fuel consumption (SFC) improvements. Such fan blades may be more prone to aerodynamic and aeroelastic ...
Validation of a Numerical Model for Predicting Stalled Flows in a Low-Speed Fan—Part I: Modification of Spalart–Allmaras Turbulence Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The original Spalart–Allmaras (SA) model is known to predict premature stall when applied to fan or compressor, which is in line with the observation of other researchers who use the SA model. Therefore, to improve the ...
Effects of Inlet Disturbances on Fan Stability
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the effects of inlet disturbance caused by crosswind on a fan blade operation and addresses the possible aerodynamic instabilities, which can arise for such a fan-intake system. The work is carried ...
Sweep Effects on Fan–Intake Aerodynamics at High Angle of Attack
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Sweep in a transonic fan is conventionally used to reduce design point losses by inclining the passage shock relative to the incoming flow. However, future low pressure ratio fans operate to lower Mach numbers meaning the ...
Validation of a Numerical Model for Predicting Stalled Flows in a Low-Speed Fan—Part II: Unsteady Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the flow near the stall boundary for a low-speed/low-pressure ratio fan. Three-dimensional, Reynolds-averaged Navier–Stokes computations are performed for a modern low speed fan rig for which extensive ...
Extending Highly Loaded Axial Fan Operability Range Through Novel Blade Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The tip clearance size has historically been considered to be the main factor affecting stability range in axial fan and compressors. This paper reveals that the stall characteristics are defined by the axial momentum flux ...
Fan Aerodynamics With a Short Intake at High Angle of Attack
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fans that are designed to maintain thrust at the high angle of attack (AOA) flight condition could exploit the cruise fuel burn benefit of a shorter intake design. This article considers how the fan rotor radial pressure ...
Development and Validation of Endovascular Chemotherapy Filter Device for Removing High Dose Doxorubicin: Preclinical Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To develop a novel endovascular chemotherapy filter (CF) able to remove excess drug from the blood during intraarterial chemotherapy delivery (IAC), thus preventing systemic toxicities and thereby enabling higher dose IAC. ...
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