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首页> 外文会议>Transactions of the KONWIHR Result Workshop on High Performance Computing in Science and Engineering; 20041014-15; Garching(DE) >DiSiVGT: Validation of a novel turbulence model using direct numerical simulation
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DiSiVGT: Validation of a novel turbulence model using direct numerical simulation

机译：DiSiVGT：使用直接数值模拟验证新型湍流模型

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摘要

More reliable turbulence models are urgently needed for the aircraft, automobile and chemical industries. The development of such models needs new concepts and the validation by complete and accurate data sets. In this work a novel Reynolds stress model has been developed based on invariant theory and two-point correlation technique. This model is extensively tested both via a priori and a posteriori testing based on available data sets. For the dissipation rate equation, the existing data suffered from lack of spatial resolution. So highly resolved direct numerical simulations have been carried out to shed more light onto the processes described by that equation. In addition, the novel model was implemented in engineering software, to make the new developments available for technical applications.
机译：飞机，汽车和化学工业迫切需要更可靠的湍流模型。此类模型的开发需要新的概念，并需要通过完整而准确的数据集进行验证。在这项工作中，基于不变理论和两点相关技术，开发了一种新颖的雷诺应力模型。基于现有数据集，通过先验和后验测试对该模型进行了广泛的测试。对于耗散率方程式，现有数据缺乏空间分辨率。因此，已经进行了高度解析的直接数值模拟，以使该方程式所描述的过程更具启发性。此外，该新模型已在工程软件中实现，以使新开发可用于技术应用。

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