A5089438506- Fluid Dynamics and Mixing
- Cavitation Phenomena in Pumps
- Flow Measurement and Analysis
- Ultrasound and Cavitation Phenomena
- Hydraulic and Pneumatic Systems
- Aerodynamics and Acoustics in Jet Flows
- Heat Transfer and Boiling Studies
- Machine Fault Diagnosis Techniques
- Coal Combustion and Slurry Processing
- Computational Fluid Dynamics and Aerodynamics
- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Fuel Cells and Related Materials
- Magnetic Bearings and Levitation Dynamics
- Laser Applications in Dentistry and Medicine
- Clay minerals and soil interactions
- Adsorption and biosorption for pollutant removal
- Geological formations and processes
- Refrigeration and Air Conditioning Technologies
- Catalysis and Oxidation Reactions
- Laser Material Processing Techniques
- Non-Destructive Testing Techniques
- Aerodynamics and Fluid Dynamics Research
- Magnetic Properties and Applications
- Hydrocarbon exploration and reservoir analysis
Shandong University
2021-2025
City University of Hong Kong, Shenzhen Research Institute
2025
Nankai University
2012-2024
Electronic expansion valves are widely used in refrigeration systems. However, the two-phase flow-induced noise is often produced during operation. In this paper, characteristics of electronic investigated by means a combination numerical calculations and experimental studies. The results show that distribution flow field closely related to valve opening. As opening increases, begins develop downstream region. showed gradual increase refrigerant rate system as was increased from 60 200...
The presence of natural gas hydrates often coincides with the formation bubble plumes, serving as evidence for their existence and potential exploitation. Bubble boundaries are non-rigid differ from those formed at rigid boundaries. This study employed an image acoustic signal synchronization acquisition device in experimental area to investigate effects flow rate on dynamics acoustics release particle layers. results indicate that increases, size, production frequency, displacement range...
This study develops a three-dimensional imaging system to obtain comprehensive information on asymmetric bubbles formed in five nozzles with exits of the same cross section examine relationship between their patterns flow and acoustic characteristics. Acoustic signals were recorded by hydrophone, analyzed through filtering short-time Fourier transform. The results show that morphology became complex increasing aspect ratio nozzle exit. complexity was reflected shape as well manner detachment...
The rapid and accurate recognition of cavitation in centrifugal pumps has become essential for improving production efficiency ensuring machinery longevity. To address the limitations existing methods terms applicability, accuracy, efficiency, a new method based on multi-dimensional feature fusion convolutional gate recurrent unit (MCGN) was proposed. Experimental monitoring conducted. Five signals at different water temperatures operating frequencies were collected. Key modulating features...
Bubble flow is widely used in various industrial scenarios. Usually, bubbles often do not exist alone, resulting interactions that affect bubble patterns, even the efficiency of mass and heat transfer or radiation acoustics feature. In this paper, two identical nozzles with adjustable center distance are adopted to study effect interaction on pattern acoustic signal. The results show will change trajectory bubbles. When time interval between larger, domain signal more likely have obvious...
Thermal action is a crucial process in laser processing. The classical Fourier heat conduction theory, which assumes an infinite speed of propagation, commonly applied to describe steady-state and mild transient thermal processes. However, under the influence ultra-short pulse lasers, such as those with picosecond femtosecond durations, propagation within material finite deviates from Fourier’s law. This article addresses unique characteristics materials subjected exposure by integrating law...