YaBeSH Digital Library: Recent submissions
Now showing items 1841-1860 of 316660
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Skin Friction Developments Associated With Vortex Ring-Sphere Interactions
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Skin friction developments resulting from coaxial and noncoaxial collisions between a ReΓ0=3000 vortex ring and stationary spheres have been explored using large-eddy simulations (LES). The diameter ratio (D/d), ... -
Impact of Runner Blade Trailing-Edge Material Loss on Flow Field and Pressure Pulsations in a Francis Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study investigates the effects of runner blade trailing-edge material loss on the internal flow characteristics and pressure pulsations of a Francis turbine. Transient numerical results demonstrate that ... -
Computational Fluid Dynamics Study on Effects of Unilateral Axial Clearance on Inner Pressure Distribution and Performance of a CO2 Scroll Compressor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. As the core component of CO2 heat pump air conditioning (HPAC) systems for electric vehicles, the performance of scroll compressors directly affects system energy efficiency and vehicle driving range. This study, ... -
Transit of an Erythrocyte-Inspired Swimmer Through a Pore
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. By using a fluid–structure interaction model, the dynamics of a swimming machine inspired by the tank-treading behavior of erythrocytes (red blood cells) during its transit through a pore in a wall are numerical ... -
Effect of a Turbulence Grid on the Compressible Flow of an Organic Vapor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The effect of a square-mesh wire grid on the compressible flow of an organic vapor was investigated, utilizing a closed-loop wind tunnel facility working with the fluid Novec 649 in the dilute gas regime. Due to ... -
Numerical Investigation of Methane Number Effect on Combustion, Performance, and Emissions in a Heavy-Duty Spark Ignition Natural Gas Engine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In this study, the effects of methane number (MN) on the numerical conversion of a heavy-duty diesel engine to a spark ignition (SI) natural gas engine were investigated. A high-compression-ratio configuration ... -
Numerical Study on Prediction and Mitigation of Aeroelastic Instabilities in Labyrinth Seals
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Labyrinth seals are noncontact fluid sealing elements widely employed at rotor–stator interfaces in turbomachinery to minimize leakage and maintain pressure differentials across various stages, thereby enhancing ... -
Experimental Investigation on the Combustion and Emission Characteristics of Near-/Supercritical Kerosene in Aero-Engine Combustion Chambers
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. To support the development of future high-performance aero-engine technology, the combustion and emission characteristics of near-/supercritical kerosene are investigated in this study using a single-cup combustor ... -
Thermomechanical Analysis of an Ignition-Assistance Device Due to Fuel Spray Impingement Using the Smoothed Particle Hydrodynamics Method
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Accurate prediction of the ignition-assistance device's thermomechanical response during fuel spray impingement is essential for understanding ignition reliability in aviation compression-ignition engines. This ... -
Mechanisms of Rotor–Rotor Interactions on Blade Loading in Vaneless Counter-Rotating Compressors at Different Matching Speeds
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Comparative analysis is conducted to clarify the influence mechanisms of rotor–rotor interactions on the blade loading of vaneless counter-rotating compressors at different matching speeds. Results reveal that ... -
Dynamics of Thermoelastic Stresses in Finite-Width Slab and Hollow Cylinder With a Growing or Receding Boundary Under an Arbitrary Temperature Transient
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Thermoelastic stresses in a single-phase, finite-width slab or hollow cylinder with a constant-velocity growing or receding boundary were derived under a time dependent arbitrary thermal load. The analysis began ... -
Quantitative Analysis of Tolerance-Induced Static and Couple Unbalance in Steam Turbine Rotors
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Rotor-system unbalance is a critical factor affecting the vibration performance and operational reliability of steam turbines and is strongly influenced by geometric and assembly tolerances introduced during ... -
Using Layered Variable-Diameter Bristle Pack to Improve the Bristle Deflection, Bending Stress, and Reaction Tip Force Performance of Brush Seals
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The excessive bristle deflection and high bristle stress level at contact region in high pressure differential environment results in overload related brush seal failures. Variable bristle diameter (VBD) brush ... -
Physics-Informed Neural Networks for Reduced-Order Modeling of Turbomachinery Blisks With Small and Large Mistuning
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Comprehensively predicting the structural dynamics of turbomachinery blisks is of critical importance to the gas turbine industry. Located in the compressor and turbine stages, vibrations of these structures are ... -
Cryogenic Radial Turbine Design for High-Efficiency Hydrogen Liquefaction Plants
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Meeting the rising global demand for liquefied hydrogen will require a scale-up of liquefaction infrastructure. Higher plant capacities increase the viability of novel cycles and components, which can achieve ... -
Highly Efficient Recuperated Brayton Convertor for Lunar Power Applications: Cycle and Conceptual Turbomachinery Design
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This paper focuses on the conceptual design of an advanced closed brayton convertor (ACBC) with high temperatures for efficient power generation in space using Helium-Xenon (He-Xe) mixture as the working fluid. ... -
Dynamic Characterization of a Low Drag Power Loss Tilting Pad Journal Bearing
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. High-performance turbomachinery relies on tilting pad journal bearings (TPJBs) for high-speed operation while maintaining acceptable stability margins. However, TPJBs can produce large drag power losses that ... -
An Investigation on the Three-Dimensional and Unsteady Flow in a Multistage Axial Supercritical Carbon Dioxide Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study investigates the aerodynamic design and analysis of a low aspect ratio, multistage, axial-flow sCO2 turbine for integration in power cycles for small modular reactors and concentrated solar power ... -
Vortex Evolution and Turbulence Dissipation During Leakage Flow in the Scallop Bionic Seal of Supercritical CO2 Turbomachinery Unit
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The supercritical carbon dioxide (SCO2) Brayton cycle system is considered one of the most representative energy conversion systems of the future. Current seal solutions used in the SCO2 turbomachinery have ... -
Minimal Modeling for Noise and Vibration Propensity of Low-Speed Axial Flow Rotor Blades Due to Vortex Shedding
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The subject of the paper is the phenomenon of shedding of vortices (termed herein as profile vortex shedding) from the region being upstream of the trailing edge (TE) of sections of blade profiles. The shed ...