Results 91 to 100 of about 2,352 (253)
Mixing Behavior of Natural Gas and Hydrogen in a High‐Efficiency Vane (HEV) Static Mixer
Energy Science &Engineering, EarlyView.Static mixers play a crucial role in the safe transport of hydrogen‐blended natural gas. Computational fluid dynamics (CFD) was employed to investigate the effects of structural parameters of the HEV static mixer on the mixing behavior and homogeneity of natural gas and hydrogen. The modeling approach was well validated against experimental data.
Xiang Zhou +5 more
wiley +1 more source
A novel flow control method suppressing tip leakage vortex of a hydrofoil applied for ducted devices [PDF]
In bladed energy conversion machines, the tip leakage vortex (TLV) is a prevalent phenomenon, which can lead to both flow losses and cavitation. Numerous scholars in recent years have proposed effective methods for TLV suppression, utilizing either ...
Zhang, Guangjian +6 more
core +1 more source
Influence of the Tip Clearance on the Aeroelastic Characteristics of a Last Stage Steam Turbine
Applied Sciences, 2019 In this paper, the tip clearance effects on the aeroelastic stability of a last-stage steam turbine model are investigated. Most of the unsteady aerodynamic work contributing to flutter of the long blades of the last-stage of a steam turbine is done near
Tianrui Sun +3 more
doaj +1 more source
Energy Science &Engineering, EarlyView.Passing vehicles generate short‐duration wakes that can be redirected toward a vertical‐axis turbine. The interaction between wake structure, blade count, and rotational speed governs transient torque production. Low‐solidity configurations combined with tuned rotational speed enhance energy extraction under vehicle‐induced gusts.
Aydin Ulus, Stefan Ilie Moldovan
wiley +1 more source
MEASUREMENT OF FLOW FIELD NEAR A TIP LEAKAGE VORTEX CAVITATION IN A TURBOPUMP INDUCER
, 2018 Flow field near the tip region of a turbopump inducer has been measured using Particle Image Velocimetry (PIV) method in a cavitating condition. Tip leakage vortex cavitation in an inducer leads to hydraulic instabilities, thus, the effects of tip ...
Kim, J., Song, S. Jin
core
Energy Science &Engineering, EarlyView.The Radial Force (RF) distribution under different cutting angles is presented in Figure 1. Generally, the distribution of RF displays divergence across different flow conditions. The pattern of force distribution reveals a total of 24 peaks, which corresponds to the number of blades of the impeller of the SCP.
Kofi Asamoah Adu‐Poku +3 more
wiley +1 more source
Controlling Tip Leakage Flow with Permeable Tip Treatment [PDF]
The present study focuses on the efficacy of controlling tip leakage flow through permeable tip treatment. A zonal large eddy simulation approach is employed to accurately capture the tip flow features around a linear cascade.
Wang, Zhong-Nan; id_orcid +2 more
core +1 more source
A Review of Tip Clearance in Propeller, Pump and Turbine
Energies, 2018 Propellers, pumps, and turbines are widely applied in marine equipment, water systems, and hydropower stations. With the increasing demand for energy conservation and environmental protection, the high efficiency and the stable operation of pumps and ...
Yabin Liu, Lei Tan, Binbin Wang
doaj +1 more source
Implantable drug delivery system: Frontiers of medicine‐engineering interdisciplinary
Interdisciplinary Medicine, EarlyView.This review systematically summarizes the driving mechanisms of implantable on‐demand drug delivery systems (IDDS), including endogenous, exogenous, and closed‐loop strategies. It highlights the pivotal roles of flexible electronics and miniaturization in enhancing the tissue conformity and spatial adaptability.
Yu Zeng +9 more
wiley +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To introduce SelExNet: a self‐supervised framework for two‐dimensional spatially selective excitation that jointly optimizes radiofrequency (RF) pulses and gradient waveforms, and extends to multi‐channel transmission MRI. Methods Building on prior RF‐only and joint RF‐gradient optimization approaches, SelExNet couples neural RF and ...
Yuliang Xiao +5 more
wiley +1 more source