Author
Kaixin Wang
Bio: Kaixin Wang is an academic researcher from Beijing University of Technology. The author has contributed to research in topics: Jet (fluid) & Body orifice. The author has an hindex of 1, co-authored 3 publications receiving 6 citations.
Topics: Jet (fluid), Body orifice, Cavitation, Injector, Nozzle
Papers
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TL;DR: In this paper, the authors investigated the submerged cavitation jet flow inside a narrow cylindrical orifice under condition of varied back pressure and showed that cavitation jets are a common phenomenon in fluid machinery that controls fluid flow by adjusting the back pressure with constant inlet pressure during the energy transforming process.
6 citations
Patent•
28 Feb 2020
TL;DR: In this paper, a method for automatically identifying a diesel spray crushing process and automatically realizing the spray continuous calculation is presented, in which the sphericity degree and the average particle diameter of liquid phases in grids are calculated and taken as judgment bases, the information of particles in a flow field are calculated through a Lagrangian method, and information of the grids belonging to continuous liquid phase in the grid node information in the full-flow field is calculated by using an Euler model, and Euler block masses meeting two bases for determination are converted into particles and re-calculated
Abstract: The invention discloses a method for automatically identifying a diesel spray crushing process and automatically realizing the spray continuous calculation. The method automatically judges the processthat a liquid film is crushed into liquid drops in the diesel injection process, and realizes a SD-ELSA algorithm of the spray continuous calculation. The SD-ELSA algorithm is characterized in that the sphericity degree and the average particle diameter of liquid phases in grids are calculated and taken as judgment bases, the information of particles in a flow field are calculated through a Lagrangian method, the information of the grids belonging to continuous liquid phases in the grid node information in the full-flow field is calculated by using an Euler model, and Euler block masses meeting two bases for determination are converted into particles and re-calculated through the Lagrangian method. According to the method, dynamic converting coupling of the Euler-Lagrangian model is realized, the complete information of discrete phases and continuous phases in the flow field can be automatically obtained and subjected to iterative computation, three stages of a liquid column, primarycrushing and secondary crushing of the diesel injection are obtained, and the diesel spray process is completely represented.
1 citations
TL;DR: In this article, an optical test rig is used to examine the submerged jet characteristics of a cylindrical orifice under conditions of varied boundary pressures, and a three-dimensional numerical model is built to investigate the details of the submerged jets.
1 citations
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TL;DR: In this paper, the influence of inlet pressure on cavitation development was investigated experimentally and numerically in order to investigate the development process in regulating valve under different inlet pressures.
Abstract: The cavitation development process in regulating valve under different inlet pressures is investigated experimentally and numerically in our paper. The influence of inlet pressure Pin on cavitation...
29 citations
TL;DR: In this paper, the characteristics of flow energy transfer and loss in perforated plates are discussed and compared with those of non-perforated plate types for flow restriction, vibration, and noise reduction.
Abstract: Perforated plates are prevalently used in various integrated energy systems for flow restriction, vibration, and noise reduction. The characteristics of flow energy transfer and loss in perforated ...
7 citations
Journal Article•
TL;DR: In this article, a visualization of highly submerged cavitating water jet has been done using 4-Quik-05 camera, which included obligatory synchronization technique and different types of lens-objectives.
Abstract: In order to study and understand the jet structure and the behavior of cloud cavitation within time and space, visualization of highly submerged cavitating water jet has been done using 4-Quik-05 camera. This included obligatory synchronization technique and different types of lens-objectives. The influencing parameters, such as: injection pressure, downstream pressure and cavitation number were experimentally proven to be very significant. The recordings of sono-luminescence phenomenon proved the bubble collapse everywhere along the jet. In addition, the effect of temperature on sono-luminescence was a point of investigation.
4 citations
TL;DR: In this article , the authors investigated the unsteady behavior of a free submerged cavitating jet numerically in three dimensions using the stress-blended eddy simulation (SBES) turbulent model combined with the Schnerr-Sauer cavitation model.
TL;DR: In this article, it was shown that the seals in hydraulic cylinders are frequently subjected to thermal degradation, and the basis of this research is the previously proven thesiamese property.
Abstract: Operation of heavy-duty machines leads to an observation that seals in hydraulic cylinders are frequently subjected to thermal degradation. The basis of this research is the previously proven thesi...