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RISExperimental Investigation on the Influence of Geometrical Parameters on the Frictional Heat Input and Leakage Performance of Brush Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Because of the superior sealing characteristics compared to labyrinth seals, brush seals found an increased spread in turbomachinery in recent years. Their outstanding sealing performance results mainly from their flexibility. ...
Experimental Investigation on the Influence of Geometrical Parameters on the Frictional Heat Input and Leakage Performance of Brush Seals
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Because of the superior sealing characteristics compared to labyrinth seals, brush seals found an increased spread in turbomachinery in recent years. Their outstanding sealing performance results mainly from their flexibility. ...
Experimental Investigation on the Rubbing Process of Labyrinth Seals Considering the Material Combination
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Labyrinth seals are used to prevent and control the mass flowrate between rotating components. Due to thermally and mechanically induced expansions during operation and transient flight maneuvers, a contact, the so-called ...
Heat Transfer Coefficient Distribution on Oil Injection Cooled Gears: Experimental Method, Uncertainty, and Results
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To design gearboxes with very high power densities, an effective means of cooling the gears and knowledge of the achievable heat transfer coefficients are necessary. In this paper, a method to measure heat transfer ...
A New Approach for Scaling Aspirating Face Seal Aerodynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present paper, an approach for scaling the aerodynamics of advanced seals is presented. Modern advanced seals, such as a self-adaptive gas lubricated face seal, comprise elements that are commonly used in turbomachinery ...
Experimental Investigations Into the Effect of Surface Roughness and Contact Force on Leakage Between Two Rigid Metallic Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Current research and development efforts in the field of heavy-duty gas turbines focus on increasing engine efficiencies, lowering combustor emissions, and extending inspection intervals. To achieve further improvements ...
Analytical Solution to the Heat Transfer in Fling-Off Cooling of Spur Gears
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: In this research paper, the cooling process of an impingement cooled spur gear is examined by means of an analytical model. The process is modeled as a coolant film, which is flung off a rotating gear tooth flank by ...
Experimental Determination of Heat Transfer Coefficient on Impingement Cooled Gear Flanks: Validation of the Evaluation Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Understanding the heat transfer characteristics of impingement cooling of high-speed high-power gears is essential to design a reliable gearbox for a new generation of jet engines. However, experimental data on the impingement ...
Smoothed Particle Hydrodynamics Simulation of Oil-Jet Gear Interaction1
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the complex two-phase flow during oil-jet impingement on a rotating spur gear is investigated using the meshless smoothed particle hydrodynamics (SPH) method. On the basis of a two-dimensional setup, a ...