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首页> 外文期刊>American journal of engineering and applied sciences >Simulation of Airflow and Aerodynamic Forces Acting on a Rotating Turbine Ventilator | Science Publications
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Simulation of Airflow and Aerodynamic Forces Acting on a Rotating Turbine Ventilator | Science Publications

机译：旋转涡轮通风机上气流和空气动力的模拟科学出版物

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> Problem statement: Rotating turbine ventilators were generally found in most countries. They were simple in structure, light in weight and cheap to install. It was quite surprising that, the aerodynamics of this common device had not been numerically examined and the design process of most of these ventilators had developed progressively through trial and error methods. Approach: This study was concerned with performing simulation of airflow using CFD technique code name FLUENT so as to visualize the flow behavior around and within a rotating turbine ventilator in addition to determining the aerodynamic forces acting on this device during its operation. To achieve that, the realizable k-ε and RSM turbulence models were used by taking advantage of moving mesh method to simulate the rotation of turbine ventilator and the consequent results were obtained through the sequential process which ensured accuracy of the computations. Results: The results confirmed that, the realizable k-ε model can exhibit a reasonable performance, however not as competence as the RSM model, but of much less computation time. Conclusion/Recommendations: Results from this study, besides ensuring the reliability of utilizing the CFD method in design process of future turbine ventilators, would lead us to a conspicuous progress on increasing the efficiency at reduced cost of wind driven ventilators and similar devices.
机译： > 问题陈述：旋转涡轮通风机在大多数国家中普遍存在。它们结构简单，重量轻且安装便宜。令人惊讶的是，没有对这种通用设备的空气动力学进行数值检查，并且大多数通风机的设计过程都是通过反复试验的方法逐步发展起来的。 方法：该研究涉及使用代号为FLUENT的CFD技术进行气流模拟，以便可视化旋转涡轮通风机周围和内部的流动行为，并确定在此期间作用在该设备上的空气动力。它的操作。为此，利用运动网格法模拟了风机的旋转，利用可实现的k-ε和RSM湍流模型，通过顺序过程获得了相应的结果，从而保证了计算的准确性。 结果：结果证实，可实现的k-ε模型可以表现出合理的性能，但是其能力不如RSM模型，但计算时间要短得多。 结论/建议该研究结果除了确保在未来涡轮机通风机的设计过程中使用CFD方法的可靠性外，还将使我们在降低风能成本的同时提高效率方面取得显着进展。呼吸机和类似设备。

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