In the present study, we introduce a method which we call the glass box optimization (GBO) method as a strategy how to reduce flow losses whenever numerical data based on computational fluid dynamics (CFD)-results are available. Based on local values of the velocity and entropy generation fields, a systematic analysis of the loss mechanisms involved is used in order to develop control mechanisms for the reduction of losses due to a conduit component. Furthermore, it is shown how the losses are distributed between a component itself and the adjacent flow field. Since often a large amount of the losses occurs outside of the actual component, it is discussed under which circumstances an optimized component leads to improved efficiency of an entire fluid flow network. The method is exemplified for turbulent flow through a 90 deg bend.
Losses Due to Conduit Components: An Optimization Strategy and Its Application
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received December 11, 2014; final manuscript received September 8, 2015; published online October 14, 2015. Assoc. Editor: Moran Wang.
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Schmandt, B., and Herwig, H. (October 14, 2015). "Losses Due to Conduit Components: An Optimization Strategy and Its Application." ASME. J. Fluids Eng. March 2016; 138(3): 031204. https://doi.org/10.1115/1.4031607
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