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RISEffects of Inlet Preswirl and Cell Diameter and Depth on Honeycomb Seal Characteristics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Three-dimensional Reynolds-averaged Navier–Stokes solutions are employed to investigate the discharge and total temperature increase characteristics of the stepped labyrinth seal with honeycomb land. ...
Investigation of Leakage Flow and Heat Transfer in a Gas Turbine Blade Tip With Emphasis on the Effect of Rotation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical analysis was applied to investigate the effect of rotation on the blade tip leakage flow and heat transfer. Flows around both flat and squealer tips at the first stage rotor blade ...
Investigations on the Rotordynamic Characteristics of a Hole-Pattern Seal Using Transient CFD and Periodic Circular Orbit Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical investigations on the rotordynamic characteristics of a typical hole-pattern seal using transient three-dimensional Reynolds-averaged Navier–Stokes (RANS) solution and the periodic circular ...
Experimental and Numerical Investigations on the Leakage Flow Characteristics of the Labyrinth Brush Seal
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The leakage rate of the labyrinth brush seal was experimentally measured and numerically investigated in this paper. Four different rotational speeds of 0, 1500, 2400 and 3000 rpm were utilized ...
Investigations on the Rotordynamic Coefficients of Pocket Damper Seals Using the Multifrequency, One-Dimensional, Whirling Orbit Model and RANS Solutions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The numerical approach using the multifrequency one-dimensional whirling orbit model and Reynolds-averaged Navier-Stokes (RANS) solution was proposed for prediction of rotordynamic coefficients of ...
A Study on Multidisciplinary Optimization of an Axial Compressor Blade Based on Evolutionary Algorithms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An aerodynamic single disciplinary optimization and an aerodynamic/structural multidisciplinary optimization of an axial compressor blade are performed using evolutionary algorithms in this paper. ...
2D Viscous Aerodynamic Shape Design Optimization for Turbine Blades Based on Adjoint Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an adjoint optimization technique and its application to the design of a transonic turbine cascade. Capable of a quick and exact sensitivity analysis and using little ...
Investigations on the Discharge and Total Temperature Increase Characteristics of the Labyrinth Seals With Honeycomb and Smooth Lands
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The viscous work generated by the rotating components of a seal not only represents a direct loss of power but also causes an increase in the total temperature of fluid (windage effect). In ...
Aerodynamic Design and Numerical Investigation on Overall Performance of a Microradial Turbine With Millimeter-Scale
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For millimeter-scale microturbines, the principal challenge is to achieve a design scheme to meet the aerothermodynamics, geometry restriction, structural strength, and component functionality ...
Effects of Pressure Ratio and Rotational Speed on Leakage Flow and Cavity Pressure in the Staggered Labyrinth Seal
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effects of pressure ratio and rotational speed on the leakage flow and cavity pressure characteristics of the rotating staggered labyrinth seal were investigated by means of experimental measurements ...