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Journal of Applied Fluid Mechanics، جلد ۱۵، شماره ۲، صفحات ۴۵۳-۴۶۴
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Inverse Design and Optimization of Low Specific Speed Centrifugal Pump Blade Based on Adaptive POD Hybrid Model |
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| چکیده انگلیسی مقاله |
To improve the prediction accuracy of the surrogate model and reduce the calculation cost for hydraulic optimization design of centrifugal pump impeller, an inverse design and optimization method based on adaptive proper orthogonal decomposition (APOD) hybrid model was proposed. Initial samples were designed by perturbing blade control parameters of the original model. The samples were classified using the K-means clustering algorithm, and the adaptive samples were selected according to the category of the objective sample. The snapshot set is composed of blade shape parameters and the CFD flow field data in impeller, which is decomposed into a linear combination of orthogonal bases by the proper orthogonal decomposition (POD) method to predict the objective parameters. According to the objective load distribution, the low specific speed centrifugal pump was inversely designed by using the APOD model, and its initial blade was obtained. And then, the flow field corresponding to disturbed blade shape was predicted using the APOD method, so as to evaluate the gradient of the objective function to design variables. Finally, the initial blade was optimized by the gradient descent method. The results show that the APOD hybrid model method can be employed to accomplish the blade inverse design and the flow field prediction in the optimization design of centrifugal impeller, which significantly reduces the numerical calculation cost and improves the accuracy of the flow field prediction. |
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| کلیدواژه‌های انگلیسی مقاله |
Proper orthogonal decomposition,
Adaptive surrogate model,
Inverse design,
Optimization,
Centrifugal pump |
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| نویسندگان مقاله |
X. B. Chen |
School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China
R. H. Zhang |
School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China
W. F. Yang |
School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China
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| نشانی اینترنتی |
https://www.jafmonline.net/article_2003_b985946a23b02c0856b9d5499c83eec3.pdf |
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| زبان مقاله منتشر شده |
en |
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