A finite element-based model for pure waterjet process simulation

Maniadaki, Kyriaki; Kestis, Thomas K.; Bilalis, Nikolaos; Antoniadis, Aristomenis

doi:10.1007/s00170-005-0274-8

Cited by 48 publications

(15 citation statements)

References 9 publications

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“…Blended learning can be applied as a supplement and complement or substitute in learning, which includes the content of teaching material in the form of documents, videos, animations, or simulations, and others [20]. Therefore, in its application, blended learning can be used as a supplement, complement, and substitute according to the needs [21] [22]. In determining proportions, the characteristics of the courses applied to blended learning must be considered.…”

Section: Introductionmentioning

confidence: 99%

Blended Learning as Instructional Model in Vocational Education: Literature Review

Krismadinata¹,

Verawardina²,

Jalinus³

et al. 2020

ujer

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Section: Introductionmentioning

confidence: 99%

Blended Learning as Instructional Model in Vocational Education: Literature Review

Krismadinata¹,

Verawardina²,

Jalinus³

et al. 2020

ujer

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“…The primary reason is that it is difficult to carry out water jet erosion of HBS test under high-pressure and low-temperature coexisting conditions (hydrate stable existence), and the test requires high operation capacity of the device. Compared with the experimental method, numerical simulation is a common research method which is not susceptible to the limitation of experimental conditions [21][22][23]. Furthermore, the stress distribution of HBS and the flow situations can be obtained through numerical simulation [22,24], which is conducive to revealing the water jet erosion mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with the experimental method, numerical simulation is a common research method which is not susceptible to the limitation of experimental conditions [21][22][23]. Furthermore, the stress distribution of HBS and the flow situations can be obtained through numerical simulation [22,24], which is conducive to revealing the water jet erosion mechanism. Therefore, by using the numerical simulation method, this paper attempts to study the water jet erosion performance of HBS under different operation parameters.…”

Section: Introductionmentioning

confidence: 99%

“…Fortunately, LS-DYNA software has been developed specifically for such complex and intricate analyses [25]. The Arbitrary Lagrangian-Eulerian (ALE) method is available in this software and is considered by many scholars to be an effective method for analyzing the fluid-solid coupling problem [21][22][23][24]26]. Therefore, based on LS-DYNA software, this paper adopted the ALE method to establish numerical models for the water jet erosion of HBS in the Shenhu area of the South China Sea.…”

Section: Introductionmentioning

confidence: 99%

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Investigation into the Water Jet Erosion Efficiency of Hydrate-Bearing Sediments Based on the Arbitrary Lagrangian-Eulerian Method

et al. 2019

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As an innovative way to exploit marine natural gas hydrates (NGH), the solid fluidization exploitation method is to erode hydrate-bearing sediment (HBS) into fine particles by a water jet and transport the particles to an offshore platform. To investigate the water jet erosion efficiency of HBS under various work parameters, such as jet velocity, standoff distance, and nozzle diameter, the Arbitrary Lagrangian–Eulerian (ALE) method was adopted to establish numerical models based on the characteristics of HBS in the South China Sea, and orthogonal experiments were performed to optimize the work parameters. The results show that the water jet erosion efficiency of HBS increases with the increase in jet velocity and nozzle diameter, however it decreases with the increase in standoff distance. The jet velocity is the most significant factor for the erosion efficiency and there exists a threshold velocity which describes the minimum jet velocity required to erode HBS. In addition, comprehensive analysis of the results of the orthogonal experiments indicates that, when the jet velocity is 150 m·s−1, the standoff distance is 0.5 cm, and the nozzle diameter is 2.5 mm, the maximum erosion volume can be obtained, which is 6.0329 cm3. This research provides valuable theoretical support for the solid fluidization exploitation of marine NGH.

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“…The model developed using LS-DYNA 3D code to simulates the erosion of the target material caused by the high-pressure waterjet flow. Maniadaki, Kestis, Bilalis and Antoniadis [8] proposed a finite element-based model for pure waterjet process simulation and the main objective was to investigate and analyse in detail the material behaviour of a work piece under waterjet impingement. The model developed using LS-DYNA 3D code to simulates the erosion of the target material caused by the high-pressure waterjet flow.…”

Section: Introductionmentioning

confidence: 99%

Assembly meshing of abrasive waterjet nozzle erosion simulation

Kamarudin

Mebrahitom

Azhari

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Computational Fluid Dynamics (CFD) softwares have been prevalent in Abrasive Waterjet (AWJ) Modelling for optimization and prediction. However, there are many different methods in approaching a single problem especially in predicting the erosion rate of nozzle which is critical in influencing kerf quality of AWJ cutting. In this paper, three main methods of assembly meshing for an abrasive waterjet erosion were simulated which is Quadrilateral, Cutcell and Tetrahedrons and each processing time, quality of convergence and accuracy of results are discussed. Results shows that Quadrilateral mesh prevails in the mentioned category followed by Tetrahedrons and Cutcell.

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A finite element-based model for pure waterjet process simulation

Cited by 48 publications

References 9 publications

Blended Learning as Instructional Model in Vocational Education: Literature Review

Blended Learning as Instructional Model in Vocational Education: Literature Review

Investigation into the Water Jet Erosion Efficiency of Hydrate-Bearing Sediments Based on the Arbitrary Lagrangian-Eulerian Method

Assembly meshing of abrasive waterjet nozzle erosion simulation

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