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首页> 外文会议>2002 International Conference on Process Modeling in Powder Metallurgy amp; Particulate Materials Oct 28-29, 2002 Newport Beach, California >USING CFD SIMULATIONS TO IMPROVE SPRAY-BASED MATERIALS PROCESSES
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USING CFD SIMULATIONS TO IMPROVE SPRAY-BASED MATERIALS PROCESSES

机译：使用CFD仿真来改善基于喷涂的材料过程

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摘要

This paper describes how computational fluid dynamics (CFD) tools are being used to guide the development and improvement of spray-based materials processes such as Spray Rolling. CFD simulations can potentially be used to evaluate the relative importance of various mechanisms (e.g spray angle, droplet size and velocity distribution) on spray deposition performance. However, the complexity of the flows relevant to these processes (three-dimensional turbulent multiphase flow with heat transfer) results in prohibitively long computation times that hinder the use of such simulations in process development. We show herein how using a one-way coupling approach reduces the computational requirements while still providing useful and relevant insight into the process. This approach can also be used to reduce the parametric space that needs to be covered experimentally, which could lead to a significant development cost reduction for spray rolling and other spray atomization and deposition processes.
机译：本文介绍了如何使用计算流体力学（CFD）工具来指导基于喷雾的材料工艺（如“喷雾轧制”）的开发和改进。 CFD模拟可潜在地用于评估各种机制（例如喷雾角度，液滴大小和速度分布）对喷雾沉积性能的相对重要性。但是，与这些过程相关的流的复杂性（带有热传递的三维湍流多相流）导致计算时间过长，从而阻碍了在过程开发中使用此类模拟。我们在这里展示了如何使用单向耦合方法减少计算需求，同时仍然提供对该过程有用且相关的见解。这种方法也可以用来减少需要实验覆盖的参数空间，这可能会导致喷涂轧制以及其他喷涂雾化和沉积过程的开发成本大大降低。

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