YaBeSH Digital Library: Recent submissions
Now showing items 11301-11320 of 316660
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Effects of Leading-Edge Blowing Control and Reduced Frequency on Airfoil Aerodynamic Performances
(The American Society of Mechanical Engineers (ASME), 2024)Airfoil leading-edge fluid-blowing control is computationally studied to improve aerodynamic efficiency. The fluid injection momentum coefficient Cμ (the ratio of injection to incoming square velocities times the slot's ... -
A Distributed Layered Planning and Control Algorithm for Teams of Quadrupedal Robots: An Obstacle-Aware Nonlinear Model Predictive Control Approach
(The American Society of Mechanical Engineers (ASME), 2024)This paper aims to develop a distributed layered control framework for the navigation, planning, and control of multi-agent quadrupedal robots subject to environments with uncertain obstacles and various disturbances. At ... -
Adaptive Dynamic Model-Based Path Following Controller Design for an Unmanned Surface Vessel
(The American Society of Mechanical Engineers (ASME), 2024)The effective design of a path-following controller for unmanned surface vessels (USVs) under uncertain influences induced by various factors such as environmental disturbances is a challenging task. In this study, we ... -
An Investigation of Dynamic Behavior of Electric Vehicle Gear Trains
(The American Society of Mechanical Engineers (ASME), 2024)The automotive industry has been experiencing a significant transition toward electrified powertrains in recent years. A torsional model of a common type of electric vehicle (EV) drivetrains is proposed to demonstrate ... -
Analysis of Stakeholders' Trust Level in the Nuclear Energy Domain in Japan
(The American Society of Mechanical Engineers (ASME), 2024)In discussions on the nuclear restart policy in Japan, trust among stakeholders in nuclear power is often raised as an issue. However, the discussion has progressed without analyzing the trust demanded by the Japanese ... -
Steady-State Rotary Periodic Solutions of Rigid and Flexible Mechanisms With Large Spatial Rotations Using the Incremental Harmonic Balance Method for Differential-Algebraic Equations
(The American Society of Mechanical Engineers (ASME), 2024)Steady-state rotary periodic responses of mechanisms lead to stress cycling in flexible structures or connecting joints, which in turn can result in structural fatigue. A general approach is developed to study rotary ... -
Estimation of Discretization Errors in Viscous Flow Simulations Based on the RANS Equations: Wall-Resolved Versus Wall-Functions
(The American Society of Mechanical Engineers (ASME), 2025)In the present paper, we focus on the simulation of viscous flows at high Reynolds numbers using the Reynolds-averaged Navier–Stokes (RANS) equations. Time-averaging is used to define the mean flow properties and only ... -
Aerodynamic Noise Generated in Three-Dimensional Lock-In and Galloping Behavior of Square Cylinder in High Reynolds Number Turbulent Flows
(The American Society of Mechanical Engineers (ASME), 2024)The flow dynamics and aeroacoustics propagation for flow-induced vibration system consisting of three-dimensional flow past an elastically-mounted square cylinder are investigated using the Ffowcs Williams–Hawkings method ... -
Sensitivity Analysis for Flow Stability of Axial Compressor Based on Meridional Flow
(The American Society of Mechanical Engineers (ASME), 2025)A sensitivity analysis method for flow stability of axial compressors based on meridional flow is proposed and employed to reveal the sensitive region of stability in the present article. The meridional stability model ... -
An Aerodynamic Investigation of a High-Pressure Turbine Using Rotor Casing Static Pressure Measurements at Engine Representative Conditions With Different Tip Designs, Tip Gaps, and Inlet Temperature Profiles
(The American Society of Mechanical Engineers (ASME), 2025)A rotating high-pressure (HP) turbine, in modern aircraft engines, is subjected to high cyclic thermal and mechanical loads. Shroudless turbines experience high heat loads on the rotor tip and casing, which makes them one ... -
Numerical and Experimental Investigation of Boundary Layer of a High-Lift Low-Pressure Turbine Cascade Under Periodic Wakes With Different Flow Coefficients
(The American Society of Mechanical Engineers (ASME), 2024)This article investigates the boundary layer on the suction surface of a low-pressure turbine (LPT) subjected to upstream wakes with three different unsteady flow cases, characterized by the variation of flow coefficients. ... -
Multidisciplinary Optimization of a Mixed-Flow Impeller With 140 Parameters and Its Shapley Additive Explanations
(The American Society of Mechanical Engineers (ASME), 2024)In recent years, we have made several improvements to the geometric parameterization method, the surrogate model method, and the sampling method, with the goal of making the traditional surrogate model-based optimization ... -
Enhanced Antideposition Performance of Film Cooling With a Shaped Sweeping Jet Hole
(The American Society of Mechanical Engineers (ASME), 2024)Shaped sweeping jet (SSJ) holes represent an advancement in sweeping jet (SJ) technology, as they offer enhanced cooling performance. To reveal the antideposition capabilities of SSJs, particle deposition results of ... -
Uncertainty Analysis of Laser Drilling Imperfection and Impacts on the Cooling Performance of a Transonic Turbine Vane
(The American Society of Mechanical Engineers (ASME), 2024)To ensure the durability and reliability of gas turbine, film cooling has been integrated into the design of the modern gas turbine vane endwall, especially for the first-stage vane endwall. Percussion laser drilling has ... -
Conjugate Heat Transfer Validation of an Optimized Film Cooling Configuration for a Turbine Vane Endwall
(The American Society of Mechanical Engineers (ASME), 2024)In this study, to improve overall cooling performance for the endwall of a turbine nozzle guide vane that incorporated internal jet impingement and external purge flow and discrete injection cooling, the external film ... -
Legal Issues of Fusion Technologies
(The American Society of Mechanical Engineers (ASME), 2024)A comprehensive regulatory framework for fusion must consider the unique characteristics and challenges of fusion technology, including safety, environmental protection, waste management, export/import control, and nuclear ... -
Flow and Heat Transfer in a Ribbed Converging-Diverging U-Duct Under Rotating and Non-Rotating Conditions
(The American Society of Mechanical Engineers (ASME), 2024)A numerical study based on steady Reynolds-averaged-Navier–Stokes (RANS) with the shear stress transport (SST) turbulence model was performed to investigate the flow and heat transfer in a ribbed U-duct with a rectangular ... -
Convergence Acceleration of Favre-Averaged Non-Linear Harmonic Method
(The American Society of Mechanical Engineers (ASME), 2024)This paper develops a numerical procedure to accelerate the convergence of the Favre-averaged non-linear harmonic (FNLH) method. The scheme provides a unified mathematical framework for solving the sparse linear systems ... -
Unsteady Interaction Between Purge Flow and Secondary Flow in High-Lift Low-Pressure Turbine
(The American Society of Mechanical Engineers (ASME), 2024)The coupling effect between the complex vortex system and the rim purge flow in the endwall region of a high-lift low-pressure turbine (LPT) will significantly influence the evolution of secondary flow and the corresponding ... -
Research on the Static and Dynamic Characteristics of Porous Air Bearings Considering Annular Groove Air Supply
(The American Society of Mechanical Engineers (ASME), 2025)The article examines the dynamic characteristics of porous air bearings in the critical pneumatic hammer state (the transition state from the steady state to the pneumatic hammer state). The dynamic characteristics mainly ...