Search
CSV
RISStudy on Flow and Heat Transfer Characteristics of a New-Proposed Alternating Elliptical U-Channel in the Midchord Region of Gas Turbine Blade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposed an alternating elliptical U-bend cooling channel, which can be applied in the midchord region of gas turbine blade and manufactured by precision casting, based on the optimal flow field structure deduced ...
Multiparameter Optimization to Improve the Erosion Resistance of Coating by Finite Element Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Finite element method (FEM) was used to study the stress peak of stress S11 (radial stress component in X-axis) on the steam turbine blade surface of four typical erosion-resistant coatings (Fe2B, CrN, Cr3C2–NiCr and ...
Heat Transfer Characteristics of the Multicavity Tips at Different Turbulence Levels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A comprehensive understanding of the tip heat transfer characteristics is important to the blade tip design. In this work, the heat transfer coefficient (h) data of several multicavity tips was measured using a steady-state ...
Influence of Mainstream Turbulence Intensity on Heat Transfer Characteristics of a High Pressure Turbine Stage With Inlet Hot Streak
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An unsteady computational study was carried out on GEE3 high pressure (HP) turbine at inflow turbulence intensities of 5%, 10%, and 20% accompanying with inlet hot streak (HS) at two circumferential positions (impinging ...
Comparisons of Rotordynamic Characteristics Predictions for Annular Gas Seals Using the Transient Computational Fluid Dynamic Method Based on Different Single Frequency and Multifrequency Rotor Whirling Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The threedimensional (3D) transient computational fluid dynamic (CFD) method was proposed to predict rotordynamic coefficients for annular gas seals. This transient CFD method uses unsteady ReynoldsAveraged Navier–Stokes ...
Unsteady Analysis on the Effects of Tip Clearance Height on Hot Streak Migration Across Rotor Blade Tip Clearance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an investigation on the hot streak migration across rotor blade tip clearance in a high pressure gas turbine with different tip clearance heights. The blade geometry is taken from the first stage of ...
Numerical Investigations on the Leakage and Rotordynamic Characteristics of Pocket Damper Seals—Part II: Effects of Partition Wall Type, Partition Wall Number, and Cavity Depth
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effects of partition wall type, partition wall number and cavity depth on the leakage and rotordynamic characteristics of the pocket damper seal (PDS) were numerically investigated using a presented 3D transient computational ...
Numerical Investigations on the Leakage and Rotordynamic Characteristics of Pocket Damper Seals—Part I: Effects of Pressure Ratio, Rotational Speed, and Inlet Preswirl
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effects of pressure ratio, rotational speed and inlet preswirl on the leakage and rotordynamic characteristics of a eightbladed fully partitioned pocket damper seal (FPDS) were numerically investigated using proposed ...
Numerical Evaluation of Novel Shaped Holes for Enhancing Film Cooling Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The overall film cooling performance of three novel film cooling holes has been numerically investigated in this paper, including adiabatic film cooling effectiveness, heat transfer coefficients as well as discharge ...
Numerical Comparison of Rotordynamic Characteristics for a Fully Partitioned Pocket Damper Seal and a Labyrinth Seal With High Positive and Negative Inlet Preswirl
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pocket damper seals (PDSs) are used as replacements for labyrinth seals in highpressure centrifugal compressors at the balancepiston location or center seal location to enhance rotordynamic stability. A concern exists that ...