Influence of Nozzle Grid Precision in Abrasive Water Jet Numerical Simulation

Yuying Jiang

Abstract


The accuracy of grid was one of the sources of error between numerical computation and experimental
values. The result of numerical computation was close to the experimental result as the grid number is controlled within
a certain range. Four different accuracy grids were compared in this paper based on the grid quality inspection
parameters. Low accuracy grid cannot assure calculation accuracy and high accuracy reduced speed of computer
calculation and efficiency of solving problem. The relatively optimal accuracy was chose through comparison based on
the grid quality inspection parameters. From the simulation result, differences were shown between high accuracy and
low accuracy. The third grid that has small deviation was considered to be the best choice during simulation process.


Keywords


Abrasive water jet; nozzle; grid; simulation

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