Journal of Fluids Engineering: Recent submissions
Now showing items 321-340 of 9024
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Relaxation Fluidic Oscillators: Design Parameters, New Operating Modes, and Characteristics of Their Internal and External Flows
(The American Society of Mechanical Engineers (ASME), 6/14/2023 )Fluidic oscillators are no-moving-part actuators that can be used to produce pulsating jets. The characteristics of these devices and of the flow fields they produce are of particular interest in the field of heat transfer, ... -
Experimental and Numerical Evaluation of Affinity Law of Single-Stage and Multistage Side Channel Pumps at Variable Rotating Speeds
(The American Society of Mechanical Engineers (ASME), 6/14/2023 )In the actual operation of pumps, regulating the rotating speed of the pump based on the affinity law through variable speed drives is deemed as a prudent and convenient approach to mitigate energy loss. However, the ... -
An Assessment of Second Moment Closure Modeling for Stratified Wakes Using Direct Numerical Simulations Ensembles
(The American Society of Mechanical Engineers (ASME), 6/6/2023 1)Buoyant wakes encountered in the ocean environment are characterized by high Reynolds (Re) and Froude (Fr) numbers, leading to significant space–time resolution requirements for turbulence resolving CFD models (i.e., direct ... -
Establishment of Prediction Model for Cavitation Surge Frequency and Onset in an Inducer Considering Dynamic Characteristics of Cavitation Compliance and Mass Flow Gain Factor
(The American Society of Mechanical Engineers (ASME), 5/15/2023 )An accurate prediction method of cavitation surge is desired to design a reliable turbopump for rocket engines that allow complex operational sequences such as controlled reentry and landing. Therefore, the paper aims to ... -
Magneto-Convective Transport of Immiscible Binary Fluids in Inclined Channel
(The American Society of Mechanical Engineers (ASME), 6/6/2023 1)This work theoretically investigates the interfacial transport of immiscible fluid layers in an inclined fluidic channel in the presence of magnetofluidic actuation. Immiscible binary system consists of both non-Newtonian ... -
Suppression of Wave Instability in a Liquid Film Flow Down a Non-Uniformly Heated Slippery Inclined Plane Using Odd Viscosity
(The American Society of Mechanical Engineers (ASME), 6/6/2023 1)We study the effects of odd viscosity on the stability of a thin Newtonian liquid film flowing down a nonuniformly heated plane under a slip boundary condition. The effect of odd viscosity arises in classical fluids when ... -
Numerical Investigation of Parameters Affecting Energy Losses in Multi-Stage Perforated Plates
(The American Society of Mechanical Engineers (ASME), 5/15/2023 )Perforated plates are commonly used for flow control in pressurized systems. In different industrial applications, these devices are also used in series (multistage perforated plates) to manage high-pressure drop or reduce ... -
A Compressible, Coupled Three-Dimensional/One-Dimensional Flow Solution Method for the Seamless Simulation of Centrifugal Pumps and Their Piping
(The American Society of Mechanical Engineers (ASME), 5/15/2023 )A compressible finite volume Navier–Stokes flow solver is coupled to a method of characteristics for the seamless turbulent flow simulation of entire pump systems. For the pump, three-dimensional (3D) simulations including ... -
Analysis on the Mechanism of Rotating Stall Inner a Pump Turbine in Pump Mode Based on the Proper Orthogonal Decomposition
(The American Society of Mechanical Engineers (ASME), 5/15/2023 )An in-depth understanding of stall behavior is essential to improve the safe and stable operation of the pump turbine. In this research, the detached eddy simulation (DES) is used to investigate the various characteristics ... -
Dynamic Transition of Unsteady Supersonic Flow From Mach to Regular Reflection Over a Moving Wedge
(The American Society of Mechanical Engineers (ASME), 5/15/2023 )The design of supersonic and hypersonic air-breathing vehicles is influenced by the transition between the Mach reflection (MR) and regular reflection (RR) phenomena. The purpose of this study is to investigate the dynamic ... -
Characterization of Two-Phase Wakes in an Upward Adiabatic Liquid-Gas Flow Around a Cylinder
(The American Society of Mechanical Engineers (ASME), 3/30/2023 )Two-phase wakes generated from a cylinder in a crossflow were experimentally studied. A water–air mixture traveled through a vertical water channel with a rectangular cross section, in which a cylinder was installed ... -
Experimental Study of Turbulence Response in a Slowly Accelerating Turbulent Channel Flow
(The American Society of Mechanical Engineers (ASME), 4/3/2023 1)An investigation of flow acceleration from initial statistically steady turbulent flow to final statistically steady turbulent flow is conducted experimentally using particle image velocimetry (PIV) and constant temperature ... -
Progress in Analytical Modeling of Water Hammer
(The American Society of Mechanical Engineers (ASME), 4/26/2023 )Analytical formulas for laminar water hammer in horizontal pipes were extended and simplified into a compact mathematical form based on dimensionless parameters: dimensionless time, water hammer number, etc. Detailed ... -
Fluidic Thrust Vector Control of Aerospace Vehicles: State-of-the-Art Review and Future Prospects
(The American Society of Mechanical Engineers (ASME), 4/3/2023 1)An efficient propulsion system holds the key to the smooth operation of any aerospace vehicle over different flight regimes. Apart from generating the necessary thrust, emphasis has also been laid on vectoring the direction ... -
Gas–Liquid Transport Behaviors and Mass Transfer Mechanism During Oxygen Dissolution and Evolution Processes in a Micropump
(The American Society of Mechanical Engineers (ASME), 3/20/2023 )On-orbit refueling and space circulation technologies involve the use of a space micropump to transport gas–liquid mixed fluids, which affects the gas–liquid mass transfer and dynamic behaviors. To predict dynamic mass ... -
Investigation of Flow Behavior of Turbulent Wall-Jet in the Viscous Shear Regime With Moving Wall Condition
(The American Society of Mechanical Engineers (ASME), 3/13/2023 )This work involves studying the effects of plate motion on the turbulent flow behavior of a wall jet stream flowing over a flat plate moving at a constant velocity in a quiescent atmosphere. A modified low-Reynolds-number ... -
Experimental Study of The Pressure-Time Method With Potential Application for Low-Head Hydropower
(The American Society of Mechanical Engineers (ASME), 3/24/2023 )The pressure-time method allows measuring the flowrate in hydraulic turbines, according to IEC 60041 standard. According to this standard, the applicability of the pressure-time method is limited to a straight pipe with a ... -
Numerical Simulation of Air-Core Surface Vortex at Critical Submergence for Dual Horizontal Intakes
(The American Society of Mechanical Engineers (ASME), 3/20/2023 )Air-entrainment from surface vortex at critical submergence for hydraulic intakes adversely affects the withdrawal efficiency and intake performance. In this study, flow at the lateral dual square bottom intake placed in ... -
Role of Secondary Ions on the i-v Characteristics of Oxyfuel Flame Subject to an Electric Field
(The American Society of Mechanical Engineers (ASME), 3/20/2023 )Recent use of ion currents as a sensing strategy in the mechanized oxyfuel cutting process motivated a series of studies which revealed that the steel work piece contributes secondary ions in addition to the primary ions ... -
Change in Cavitation Regime on NACA0015 Hydrofoil by Heating the Hydrofoil Surface
(The American Society of Mechanical Engineers (ASME), 3/13/2023 )An experimental study of cavitating flow on a heated NACA0015 hydrofoil was conducted in a cavitation tunnel to investigate the influence of the hydrofoil surface temperature on the cavitating flow. The cavitation behavior ...