Journal of Fluids Engineering: Recent submissions
Now showing items 621-640 of 9024
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A Method to Design and Optimize Axial Flow Cyclones for Gas–Liquid Separation
(The American Society of Mechanical Engineers (ASME), 2021)This article provides a detailed design guide, optimization, and performance assessment for air–water separation of an axial flow cyclone. Axial flow cyclones (also known as swirl tube demisters, mist eliminators, or ... -
Fluid Dynamics and Pressure Drop Prediction of Two-Phase Flow Through Sudden Contractions
(The American Society of Mechanical Engineers (ASME), 2021)The aim of the present study is to investigate fluid dynamics and pressure drop across sudden contractions in a two-dimensional, axisymmetric pipe carrying a two-phase mixture of air (secondary phase) and water (primary ... -
Influence of Coflow on Buoyant Plume Puffing
(The American Society of Mechanical Engineers (ASME), 2021)This study investigates the influence of an annular coflowing air stream on the puffing behavior of a buoyant plume by employing the BiGlobal Linear Stability Analysis. An increase in the coflow is found to mitigate the ... -
Development of an Inverse Plume Model for Mass Eruption Rate in Unsteady Conditions
(The American Society of Mechanical Engineers (ASME), 2021)Following volcanic eruptions, forecasters need accurate estimates of mass eruption rate (MER) to appropriately predict the downstream effects. Most analyses use simple correlations or models based on large eruptions at ... -
Channel-Confined Wake Structure Interactions Between Two Permeable Side-by-Side Bars of a Square Cross-Section
(The American Society of Mechanical Engineers (ASME), 2021)The current research focuses on the laminar flow through permeable side-by-side bars of a square cross section in a channel-confined domain. Vorticity generation on the leeward sides of the permeable bodies further ... -
Tip Leakage Behavior and Large Coherent Perturbation Analysis of an Axial–Radial Combined Compressor With Outlet Distortion
(The American Society of Mechanical Engineers (ASME), 2021)Increasing performance requirements and compact structure design promote the generation of axial–radial combined compressors. However, its complex structure and asymmetrical outlet boundary cause difficulty to get an ... -
Influence of Impeller Sinusoidal Tubercle Trailing-Edge on Pressure Pulsation in a Centrifugal Pump at Nominal Flow Rate
(The American Society of Mechanical Engineers (ASME), 2021)The high-speed rotation of impellers leads to strong rotor–stator interaction, which mainly causes the pressure pulsation of centrifugal pumps. An impeller with a bionic sinusoidal tubercle trailing edge (STTE) can reduce ... -
Water Hammer Simulation in a Steel Pipeline System With a Sudden Cross Section Change
(The American Society of Mechanical Engineers (ASME), 2021)Contractions and expansions are common features in various types of pipeline systems. The purpose of this study is to investigate the influence of a sudden cross section change on transient pressure waves. The paper presents ... -
A Fast and Effective Method for the Optimization of the Valve Plate of Swashplate Axial Piston Pumps
(The American Society of Mechanical Engineers (ASME), 2021)This research presents a lumped parameter numerical model aimed at designing and optimizing an axial piston pump. For the first time, it has been shown that a lumped parameter model can accurately model axial piston pump ... -
Higher-Order Turbulence Around Different Circular Cylinders Using Particle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 2021)Wakes and higher-order turbulence around circular cylinders of different diameters are investigated using particle image velocimetry measurements. The cylinder Reynolds number (Red) is defined by the depth-averaged velocity, ... -
Data Assimilation of Steam Flow Through a Control Valve Using Ensemble Kalman Filter
(The American Society of Mechanical Engineers (ASME), 2021)The present work concentrates on the simulation enhancement of steam flow through a control valve using the data assimilation (DA) approach based on ensemble Kalman filter (EnKF). The k-ω shear stress transport (SST) model ... -
Message Passing Interface Parallelization for Two-Way Coupled Euler–Lagrange Simulation of Microbubble Enhanced HIFU
(The American Society of Mechanical Engineers (ASME), 2021)Microbubble enhanced high intensity focused ultrasound (HIFU) is of great interest to tissue ablation for tumor treatment such as in liver and brain cancers. To accurately characterize the acoustic and thermal fields during ... -
Hybrid RANS–LES Simulation of Turbulent Heat Transfer in a Channel Flow With Imposed Streamwise or Spanwise Mean Temperature Gradient
(The American Society of Mechanical Engineers (ASME), 2021)Computational fluid dynamics (CFD) results are presented for turbulent flow and heat transfer in a plane channel. This study investigates an idealized fully developed planar channel flow case for which the mean velocity ... -
Investigation of Particle Loading on the Turbulent Flow Over a Deep Cavity
(The American Society of Mechanical Engineers (ASME), 2021)Turbulent particle-laden flows are of interest due to their presence in many industrial and natural flows. The effect that the particles have on the turbulence of the fluid is referred to as turbulence modulation. Experimental ... -
Vortex Dynamics and Instability Mechanisms in a Radially Lobed Nozzle
(The American Society of Mechanical Engineers (ASME), 2021)The application of radially lobed nozzles has seen renewed challenges in the recent past with their roles in combustion chambers and passive flow control. The free jet flow from such nozzles has been studied for different ... -
Impact of Polymer Degradation on Past Studies of the Mean Velocity Profile in Turbulent Boundary Layers
(The American Society of Mechanical Engineers (ASME), 2021)This study reexamines past studies of how drag-reducing polymer solutions modify the log-region of a developing turbulent boundary layer (TBL). The classical view was that the polymers modify the intercept constant without ... -
The Development and Application of a Kinetic Theory for Modeling Dispersed Particle Flows
(The American Society of Mechanical Engineers (ASME), 2021)This Freeman Scholar article reviews the formulation and application of a kinetic theory for modeling the transport and dispersion of small particles in turbulent gas-flows. The theory has been developed and refined by ... -
Theory of Uncertainty Analysis With Application to Naval Hydrodynamics
(The American Society of Mechanical Engineers (ASME), 2021)The modern methodology for quantifying the quality of experimental data is uncertainty analysis. Current methods are reviewed with some examples primarily from naval hydrodynamics. The methods described apply to fluids ... -
Turbulent Flows With Drops and Bubbles: What Numerical Simulations Can Tell Us—Freeman Scholar Lecture
(The American Society of Mechanical Engineers (ASME), 2021)Turbulent flows laden withlarge, deformable drops or bubbles are ubiquitous in nature and a number of industrial processes. These flows are characterized by physics acting at many different scales: from the macroscopic ... -
Special Issue on the 2020 Fluids Engineering Division Summer Meeting
(The American Society of Mechanical Engineers (ASME), 2021)Special Issue on the 2020 Fluids Engineering Division Summer MeetingThe ASME Journal of Fluids Engineering (JFE) and the ASME Fluids Engineering Division (FED) present a special issue of papers that were presented at the ...