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RISA Time-Delayed Hyperchaotic System Composed of Multiscroll Attractors With Multiple Positive Lyapunov Exponents
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper proposes a time-delayed hyperchaotic system composed of multiscroll attractors with multiple positive Lyapunov exponents (LEs), which are described by a three-order nonlinear retarded type delay differential ...
Design Optimization of a Blended Blade and Endwall in a Compressor Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The blended blade and endwall (BBEW) contouring technology can adjust the dihedral angle between suction surface and endwall, thus reducing corner separation in compressors. Generally, the design of BBEW relies on the ...
Numerical and Experimental Study of Multiphase Transient Core-Annular Flow Patterns in a Spouted Bed
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dense solid–gas bubbling systems with combined fluid-particle motion are among one of the most extensively used fluidization forms used in the chemical industry. Therefore, it is important to have a good understanding of ...
Impacts of Tandem Configurations on the Aerodynamic Performance of an Axial Supersonic Through-Flow Fan Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the current study, the tandem blade technology is applied to an supersonic throughflow fan (STFF) tandem cascade for the first time and a 2D STFF tandem cascade is preliminarily designed. Through the modification design ...
Influence Mechanism of Trimming Impeller Diameter in a Centrifugal Pump by Computational Fluid Dynamics Investigation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Trimming the impeller diameter of a centrifugal pump is the easiest and most economical way to adjust its efficient operating range based on its original performance. Three impellers obtained by trimming the diameter are ...
Numerical and Experimental Study of Axial Force and Hydraulic Performance in a Deep Well Centrifugal Pump With Different Impeller Rear Shroud Radius
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A multistage deepwell centrifugal pump (DCP) with different impeller rear shroud radius have been investigated both numerically and experimentally under multiconditons, which aims at studying the influence of impeller rear ...
Carbon Dioxide and Methane in the China Sea Shelf Boundary Layer Observed by Cavity Ring-Down Spectroscopy
Publisher: American Meteorological Society
Abstract: AbstractHigh-accuracy continuous ship-based cavity ring-down spectroscopy was used to simultaneously measure the mixing ratios of the carbon dioxide and methane in the China Sea shelf boundary layer for the first time, ...
Transient Computational Fluid Dynamics/Discrete Element Method Simulation of Gas–Solid Flow in a Spouted Bed and Its Validation by High-Speed Imaging Experiment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A coupled computational fluid dynamics (CFD)/discrete element method (DEM) is used to simulate the gas–solid two-phase flow in a laboratory-scale spouted fluidized bed. Transient experimental results in the spouted fluidized ...
Effect of Tip Clearance on Rotating Stall in a Mixed-Flow Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The non-uniform disturbance in the circumferential direction is the essential cause of the occurrence of rotating stall in a turbomachinery. In order to study the effect of tip clearance leakage flow on rotating stall, the ...
Numerical Investigation of Tip Clearance Effects on the Performance and Flow Pattern Within a Sewage Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Sewage pumps are one of the most popular types of fluid machinery in municipal, industrial, and environmental engineering and many other fields. The influence of tip clearance size on the pump performance and internal flow ...