Lattice Boltzmann Simulation of the Flow Field in Pump Intakes: A New Approach
Lattice Boltzmann Simulation of the Flow Field in Pump Intakes: A New Approach
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DOI：
10.1115/fedsm2013-16338
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发表时间：
2013-07
期刊：
影响因子：
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通讯作者：
A. Schneider;D. Conrad;M. Böhle
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文献类型：
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作者：
A. Schneider;D. Conrad;M. Böhle
近年来，格子Boltzmann方法已成为解决工程感兴趣的流体流动问题的热门。这种流行的原因是由于这种方法的优点，例如，处理复杂几何形状的简单性和计算瞬态流的高效率。对于泵和泵系统的运行可靠性和效率，来流条件是至关重要的。由于泵的效率和可靠性要求不断提高，并且必须由泵和设备制造商保证，因此需要在设备规划期间评估泵入口的流动条件。最近的趋势表明，泵进水口越来越紧凑，这使得进水口中的流动更加复杂，并且存在不可接受的泵流入条件的更高风险。如果泵的进水条件不符合泵制造商的要求或国际标准，则需要进行优化。本文提出了一种基于Lattice Boltzmann-LES方法的泵进水模拟数值方案，并分析了其捕捉进水流动现象的能力。Copyright © 2013 by ASME
In recent years Lattice Boltzmann Methods have become popular for solving fluid flow problems of engineering interest. Reasons for this popularity are due to the advantages of this method which are for example the simplicity to handle complex geometries and the high efficiency in calculating transient flows.For the operational reliability and efficiency of pumps and pump systems the incoming flow conditions are crucial. Since the efficiency and reliability requirements of pumps are rising and must be guaranteed by the pump and plant manufacturer, the flow conditions in pump intakes need to be evaluated during plant planning. Recent trends show that pump intakes are built more and more compact which makes the flow in the intake even more complex and holds a higher risk for unacceptable pump inflow conditions. If the inflow conditions of the pump are not according to the demand of the pump manufacturer or to international standards, optimization needs to be done.In this contribution a numerical scheme for the simulation of pump intakes based on a Lattice Boltzmann-LES approach is presented and the ability to capture the flow phenomena of the intake flow is analyzed.Copyright © 2013 by ASME