Journal of Fluids Engineering: Recent submissions
Now showing items 681-700 of 9024
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Design and Evaluation of Generic Bump for Flow Control in a Supersonic Inlet Isolator
(The American Society of Mechanical Engineers (ASME), 2021)In this paper, the geometry of a supersonic inlet isolator is modified by the introduction of a two-dimensional (2D) bump to control the complex lip shock wave/boundary layer interaction (SWBLI). The bump is of general ... -
Wake and Performance Predictions of Two- and Three-Bladed Wind Turbines Based on the Actuator Line Model1
(The American Society of Mechanical Engineers (ASME), 2021)This paper challenges the standard wind turbine design numerically assessing the wake and aerodynamic performance of two- and three-bladed wind turbine models implementing downwind and upwind rotor configurations, respectively. ... -
A Comparison of Different Approaches to Estimate the Efficiency of Wells Turbines
(The American Society of Mechanical Engineers (ASME), 2021)Wells turbines are among the most interesting power takeoff devices used in oscillating water column (OWC) systems for the conversion of ocean-wave energy into electrical energy. Several configurations have been studied ... -
High Pressure Vertical Axis Wind Pump
(The American Society of Mechanical Engineers (ASME), 2021)A novel positive displacement, high pressure, vertical axis wind pump (HP-VAWP) was evaluated for the application of stand-alone high-pressure reverse-osmosis desalination and drip irrigation systems. The direct interface ... -
Numerical Study of Tip Leakage Vortex Around a NACA0009 Hydrofoil
(The American Society of Mechanical Engineers (ASME), 2021)In the tip clearance flow, the dominant vortex is the tip leakage vortex (TLV), which has a significant impact on the hydraulic and cavitation performance of axial flow machineries. In order to reveal the impact mechanism ... -
Discordance of Tracer Transport and Particulate Matter Fate in a Baffled Clarification System
(The American Society of Mechanical Engineers (ASME), 2021)Large eddy simulation (LES) and coupled physical laboratory-scale modeling are performed to elucidate tracer transport and particulate matter (PM) fate in a baffled clarification system. Such baffled systems are common for ... -
Forced Convective Flow of Bingham Plastic Fluids in a Branching Channel With the Effect of T-Channel Branching Angle
(The American Society of Mechanical Engineers (ASME), 2021)This work aims to explore the T-channel momentum and heat transfer characteristics with the combined effect of Bingham plastic fluids (0.01 ≤ Bn ≤ 20) behavior and geometrical variation in terms of branching angle (30 deg ... -
Approximations for Steady Unidirectional Slip Flows in Elliptic Microchannels
(The American Society of Mechanical Engineers (ASME), 2021)Consider steady flows in a channel whose cross section Ω is an ellipse, flows with the Navier slip boundary condition. Denote the volume flow rate by Q. We apply to elliptic cross section a recent simple approximation, a ... -
Effects of Atmospheric Uncertainties on Sonic Boom Perceived Level
(The American Society of Mechanical Engineers (ASME), 2021)This work quantifies the uncertainty in Stevens Mark VII Perceived Level of sonic booms due to uncertainties in atmospheric profiles. The influence of temperature, humidity, and wind profiles, at six cities around the ... -
Numerical Modeling of Freestream Turbulence Decay Using Different Commercial Computational Fluid Dynamics Codes
(The American Society of Mechanical Engineers (ASME), 2021)This work models the spatial decay of freestream turbulence using three different commercial computational fluid dynamics (CFD) codes: Fluent, star-ccm+, and cfx. The two-equation shear stress transport k–ω (SST-k–ω) steady ... -
Flow-Field Measurements in a Metal Additively Manufactured Offset Strip Fin Array Using Laser Doppler Velocimetry
(The American Society of Mechanical Engineers (ASME), 2021)Metal additive manufacturing (AM) of heat exchanger enables custom and conformal designs for a wide range of applications. However, one challenge with metal AM is the resultant surface roughness formed when using this ... -
Design of a Pulsing Flow Driven Turbine
(The American Society of Mechanical Engineers (ASME), 2021)There is widespread interest in using pressure gain combustion in gas turbine engines to increase gas turbine engine efficiency and reduce fuel consumption. However, the fluctuating turbine inlet conditions inherent with ... -
Wall-Shear-Stress-Based Conditional Sampling Analysis of Coherent Structures in a Turbulent Boundary Layer
(The American Society of Mechanical Engineers (ASME), 2021)Coherent structures are critical for controlling turbulent boundary layers due to their roles in momentum and heat transfer in the flow. Turbulent coherent structures can be detected by measuring wall shear stresses that ... -
Multiscale Simulations of Polymer Flow Between Two Parallel Plates
(The American Society of Mechanical Engineers (ASME), 2021)A modified multiscale method without constitutive equation is proposed to investigate the microscopic information and macroscopic flow properties of polymeric fluid with the memory effect between parallel plates. In this ... -
A Method for Pump Manifold Performance Calculations in Hydraulic Air Compressors
(The American Society of Mechanical Engineers (ASME), 2021)Analytical methods are described that were developed to undertake the pump manifold calculations for hydraulic air compressors (HACs) where multiple pumps are installed in parallel configurations. The procedures are fast ... -
Numerical Study of Supersonic Mixed Compression Air Intake With an Array of Air Jets
(The American Society of Mechanical Engineers (ASME), 2021)Computational study of flow physics inside the mixed compression air intake has been carried out with and without air jets (AJs) at design Mach number of 2.2. Reynolds-averaged Navier–Stokes (RANS) equations were solved ... -
Numerical Study on Flow Field in a Peripheral Ported Rotary Engine Under the Action of Apex Seal Leakage
(The American Society of Mechanical Engineers (ASME), 2021)Apex seal leakage is one of the main defects restricting the performance improvement of rotary engines. The aim of this study is to study the airflow movement in a peripheral ported rotary engine under the action of apex ... -
Heat Transfer Advancement From Horizontal Cylinder Using Passive Shroud−Chimney Configuration: Experimental and Numerical Analysis
(The American Society of Mechanical Engineers (ASME), 2021)In a prior study, the novel shroud−chimney configuration (SCC) (semicircular shrouds and expended chimney) has been numerically demonstrated to passively augment natural convection heat transfer from a horizontal cylinder. ... -
Flow Field Analysis and Nearfield Acoustic Signature Reduction of a Stationary Fan Blade Array
(The American Society of Mechanical Engineers (ASME), 2021)A highly cambered and loaded stationary fan blade cascade of an in-service centrifugal fan is analyzed in this research work at flow conditions corresponding to design point operation of subject fan. The configuration of ... -
Lagrangian Analysis of Unsteady Partial Cavitating Flow Around a Three-Dimensional Hydrofoil
(The American Society of Mechanical Engineers (ASME), 2021)This study employs an incompressible homogeneous flow framework with a transport-equation-based cavitation model and shear stress transport turbulence model to successfully reproduce the unsteady cavitating flow around a ...