Next Article in Journal
Some I-Convergent Sequence Spaces of Fuzzy Numbers Defined by Infinite Matrix
Previous Article in Journal
Vibration Characteristics Analysis of the Rub- Impact Rotor System with Mass Unbalance
Article Menu

Export Article

Open AccessArticle
Math. Comput. Appl. 2016, 21(1), 2; doi:10.3390/mca21010002

Numerical Simulation Study on the Flow Field Out of a Submerged Abrasive Water Jet Nozzle

1,2,* , 1,2
and
1,2
1
School of Resource and Safety Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
2
State Key Lab of Coal Resources and Safe Mining (China University of Mining and Technology), Beijing 100083, China
*
Author to whom correspondence should be addressed.
Academic Editor: Mehmet Pakdemirli
Received: 16 November 2015 / Revised: 26 February 2016 / Accepted: 1 March 2016 / Published: 4 March 2016
View Full-Text   |   Download PDF [2517 KB, uploaded 4 March 2016]   |  

Abstract

In order to optimize the parameters of pre-mixed abrasive water jet cutting technology, make it more efficient in the coal mine gas environment and solve the problem of hard coal and the difficulty of rock drilling, FLUENT software was used to get the isothermal, incompressible, steady flow field out of a submerged abrasive water jet nozzle through numerical simulation, with different particle sizes and different confining pressures under submerged conditions. The results show that, under submerged conditions, the maximum velocity of the abrasive particle outside the pre-mixed abrasive water jet nozzle is about 6 mm far away from the nozzle; the abrasive particle diameter has little influence on the velocity outside the nozzle. The external confining pressure of the nozzle has an important influence on the velocity, which is that the jet velocity of the same position decreases with the increase of confining pressure and the relationship between the confining pressure of different distance from the nozzle exit and the abrasive velocity is exponential function. The results of the simulation laid the foundation for optimizing the nozzle structure, improving efficiency and developing the abrasive water jet nozzle. View Full-Text
Keywords: abrasive water jet; submerged condition; flow field; confining pressure abrasive water jet; submerged condition; flow field; confining pressure
Figures

Figure 1

This paper was processed and accepted under the editorial system of the ASR before its transfer to MDPI.

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Meng, J.; Wei, Q.; Ma, Y. Numerical Simulation Study on the Flow Field Out of a Submerged Abrasive Water Jet Nozzle. Math. Comput. Appl. 2016, 21, 2.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Math. Comput. Appl. EISSN 2297-8747 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top