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Influence of Impeller Sinusoidal Tubercle Trailing-Edge on Pressure Pulsation in a Centrifugal Pump at Nominal Flow Rate

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (9)

The high-speed rotation of impellers leads to strong rotor-stator interaction, which mainly causes the pressure pulsation of centrifugal pumps. An imp......

On the Vortical Characteristics of Horn-Like Vortices in Stator Corner Separation Flow in an Axial Flow Pump

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (6)

The phenomenon of horn-like vortex in stator corner separation flow in an axial flow pump was first reported by Wang et al. (2020, "Investigation on t......

A Preliminary Study on the Simulation of Vortex Flow in Pump Intake Based on LBM-VOF-LES Combined Model

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (5)

In this paper, the lattice Boltzmann method-large eddy simulation (LBM-LES) model was combined with the volume of fluid (VOF) method and used to simul......

Influence of Tip Clearance on the Hydrodynamic Damping Characteristics of a Hydrofoil

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (6)

Tip clearance in hydraulic machines may complicate the fluid-structure interaction (FSI) effects. In this investigation, a mode-based approach (modal ......

Large Eddy Simulation Investigations of Periodic Cavitation Shedding With Special Emphasis on Three-Dimensional Asymmetry in a Scaled-Up Nozzle Orifice

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (7)

The periodic shedding of cloud cavitation in a nozzle orifice has a significant influence on the flow field and may have destructive effects. Most of ......

Analysis on the Inception of the Magnetohydrodynamic Flow Instability in the Annular Linear Induction Pump Channel

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (6)

Flow instability is the intricate phenomenon in the annular linear induction pump (ALIP) when the pump runs at off-design working condition. A three-d......

Study on Performance Enhancement of a Flapping Foil Energy Harvester Using Circulation Control

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (7)

Oscillating motion, an effective way to harvest energy, has gradually become a hotspot in bionic motion research in recent years. Means of improving t......

Data Assimilation of Steam Flow Through a Control Valve Using Ensemble Kalman Filter

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (9)

The present work concentrates on the simulation enhancement of steam flow through a control valve using the data assimilation (DA) approach based on e......

Enhancing Cryogenic Cavitation Prediction Through Incorporating Modified Cavitation and Turbulence Models

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (6)

Cavitating flow prediction is essential for designing cavitation-resistant hydraulic machines. Despite the advances achieved in normal-temperature cav......

Simulation and Experimental Investigation of a New Type of Combined Seal Structure

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (5)

Based on the study of leakage characteristics of labyrinth seal structure (LSS), a new type of combined seal structure (CSS) consisting of the labyrin......

A Method to Design and Optimize Axial Flow Cyclones for Gas-Liquid Separation

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (9)

This article provides a detailed design guide, optimization, and performance assessment for air-water separation of an axial flow cyclone. Axial flow ......

A Modified Chezy Formula for One-Dimensional Unsteady Frictional Resistance in Open Channel Flow

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (5)

It has been observed in literature that for unsteady flow conditions the one-to-one relationships between flow depth, cross-sectional averaged velocit......

Propagation of Shock Wave at the Cavitation Bubble Expansion Stage Induced by a Nanosecond Laser Pulse

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (5)

The objective of this paper is to reveal the attenuation characteristics of a shock wave after optical breakdown in water, with laser pulses of 12-ns ......

Investigation of Flow Separation Characteristics in a Pump as Turbines Impeller Under the Best Efficiency Point Condition

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (6)

The impeller, which is the main energy conversion component of a pump as turbine (PAT), is designed for pumping mode, and its internal flow characteri......

Numerical Study of Tip Leakage Vortex Around a NACA0009 Hydrofoil

期刊: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2021; 143 (5)

In the tip clearance flow, the dominant vortex is the tip leakage vortex (TLV), which has a significant impact on the hydraulic and cavitation perform......

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