A multi-surrogate based optimization is a technique for the optimization of a turbomachinery impeller shape, which reduces the total design time. Computational analysis and surrogate-based optimization methodology have been implemented for the shape optimization of a centrifugal impeller blade in this problem. Geometric parameters such as impeller inlet and two-point control Bezier curve blade profile were selected as design variables. The objective was to maximize the total head as well as the efficiency of the pump using surrogate based optimization methods. A sample space was created for the design variables based on the sensitivity of the variable to the objective function and literature survey give a range of sample space. A three-dimensional Reynolds-averaged Navier-Stokes equations were solved to analyze the performance of the pump and the results were validated with experimental results. The simulations were done at different design points within the sample space to train the surrogate and to find the design optimum point using genetic algorithm. The shape of the impeller was optimized, to decrease the input power and improve the total head by varying the inlet and exit angles of the impeller.
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ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition
June 13–17, 2016
Seoul, South Korea
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4971-2
PROCEEDINGS PAPER
Optimization of a Centrifugal Pump Impeller by Controlling Blade Profile Parameters
Md. Hamid Siddique,
Md. Hamid Siddique
Indian Institute of Technology Madras, Chennai, India
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K. R. Mrinal,
K. R. Mrinal
Indian Institute of Technology Madras, Chennai, India
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Abdus Samad
Abdus Samad
Indian Institute of Technology Madras, Chennai, India
Search for other works by this author on:
Md. Hamid Siddique
Indian Institute of Technology Madras, Chennai, India
K. R. Mrinal
Indian Institute of Technology Madras, Chennai, India
Abdus Samad
Indian Institute of Technology Madras, Chennai, India
Paper No:
GT2016-56604, V02CT45A009; 8 pages
Published Online:
September 20, 2016
Citation
Siddique, MH, Mrinal, KR, & Samad, A. "Optimization of a Centrifugal Pump Impeller by Controlling Blade Profile Parameters." Proceedings of the ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. Volume 2C: Turbomachinery. Seoul, South Korea. June 13–17, 2016. V02CT45A009. ASME. https://doi.org/10.1115/GT2016-56604
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