论文标题

冷喷模模拟中各种模型的分析和比较:朝向高保真模拟

Analysis and comparisons of various models in cold spray simulations : towards high fidelity simulations

论文作者

Bouthier, Louis-Vincent, Hachem, Elie

论文摘要

冷喷雾技术是一种快速增长的制造技术,会影响许多行业。尽管多年来研究了对现象的理解和系统性能的改善,但确保高保真模拟仍然是一个挑战。我们在这项工作中提出了详细的高保真建模和模拟,从而更多地了解了在冷喷雾中出现的现象,例如湍流,倾斜冲击,弓形冲击,波动,颗粒运动和颗粒会影响。它主要基于称为分离的涡模拟(DES)模型的富型模型。此外,我们对各种现有模型进行了几项分析,以进行验证和比较目的。最后,这个高保真框架将使我们能够处理一种新的配置,以显示对先前模型评估的性能的改进。

Cold spray technology is a quickly growing manufacturing technology which impacts lots of industries. Despite many years of studies about the comprehension of the phenomena and the improvements of the performance of the system, ensuring high fidelity simulations remains a challenge. We propose in this work a detailed high fidelity modeling and simulations giving more insight of the phenomena appearing in cold spray such as turbulence, oblique shocks, bow shocks, fluctuations, particles motion and particles impacts. It is mainly based on a richer model known as the Detached Eddy Simulation (DES) model. Moreover, we present several analysis of various existing models for both validations and comparisons purposes. Finally, this high fidelity framework will allow us to deal with a new configuration showing an improved performance assessed with the previous models.

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