Abstract: A new entrainment abrasive waterjet system is proposed, the system is a significant improvement and invention of the traditional entrainment abrasive waterjet system. The flow field of new injection system is simulated with ANSYS Fluent, the flow field of the injection system are compared and analyzed for these two ways, which one way is that two abrasive inlet are vented to the atmosphere, another that an abrasive inlet to the atmosphere and an abrasive inlet connected with the abrasive slurry solution. The experiment result verifies that flow field simulation is correctness, providing a theoretical basis for the development of new entrainment abrasive waterjet system. Finally, the new entrainment abrasive waterjet system is developed, the system is made for pressure system, injection system and mixing and delivery system. The input amount of abrasive slurry solution and abrasive mixing effect are tested. The experiment results have shown that the effect of abrasive waterjet system is good, it can achieve the abrasive concentration and precise control. Therefore, the new entrainment abrasive waterjet system is superior to the traditional entrainment abrasive waterjet system, laying the foundation for a broader application of the entrainment abrasive waterjet system.

Key words: ANSYS Fluent, development, entrainment abrasive waterjet system, flow field