Skip to main content
SpringerLink
Log in

Global Search of a Three-dimensional Low Solidity Circular Cascade Diffuser for Centrifugal Blowers by Meta-model Assisted Optimization

  • Published:
Journal of Thermal Science Aims and scope Submit manuscript

Abstract

A three-dimensional blade of a low solidity circular cascade diffuser in centrifugal blowers is designed by means of a multi-point optimization technique. The optimization aims at improving static pressure coefficient at a design point and at a small flow rate condition. Moreover, a clear definition of secondary flow expressed by positive radial velocity at hub side is taken into consideration in constraints. The number of design parameters for three-dimensional blade reaches to 10 in this study, such as a radial gap, a radial chord length and mean camber angle distribution of the LSD blade with five control points, control point between hub and shroud with two design freedom. Optimization results show clear Pareto front and selected optimum design shows good improvement of pressure rise in diffuser at small flow rate conditions. It is found that three-dimensional blade has advantage to stabilize the secondary flow effect with improving pressure recovery of the low solidity circular cascade diffuser.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Senoo, Y., Hayami, H. and Ueki, H., 1983, Low-Solidity Tandem-Cascade Diffusers for Wide-Flow-Range Centrifugal Blowers, ASME paper No.83-GT-3 pp.1–7, Indianapolis, Indiana, USA.

    Google Scholar 

  2. Senoo, Y., Kawano, M. and Hayami, H., 1979, A Low Solidity Cascade Diffuser, Transactions of the Japan Society of Mechanical Engineers, Series B, Vol.45, No.396 pp.1099–1107 (In Japanese)

    Google Scholar 

  3. Senoo, Y., Hayami, H. and Ueki, H., 1986, Low-solidity Cascade Diffusers for Wide-flow-range Centrifugal Blowers, International Journal of Turbo and Jet Engines, Volume 3, pp.33–41

    Google Scholar 

  4. Hayami, H., Senoo, Y. and Utsunomiya, K., 1990, Application of low-solidity cascade diffuser to transonic centrifugal compressor, Transactions of the ASME, Journal of Turbomachinery, Vol.112-1, pp.25–29

    Article  Google Scholar 

  5. Tamaki, H., 2000, Study on Optimization of Low Solidity Diffuser, Journal of the Gas Turbine Society of Japan, Vol.28-3, pp.231–237 (In Japanese)

    Google Scholar 

  6. Oh, JS., Buckley, CW and Agrawal, GL, 2011, Numerical Invesitigation of Low Solidity Vaned Diffuser Performance in a High-pressure Centrifugal Compressor, part III: Tandem Vanes”, GT2011-45382, Vancouver, Canada.

    Google Scholar 

  7. Shibata, T., Tagi, M., Myoren, C., Nishida, H., Kobayashi, H. and Tanaka, M., 2011, Design Optimization of Low Solidity Vaned Diffusers for Centrifugal Compressors Using a Multi-objective Genetic Algorithm, Proceedings of the International Gas Turbine Congress, Osaka, Japan, IGTC2011-165, pp.1–8

    Google Scholar 

  8. Sakaguchi, D., Ishida, M., Hayami, H., Mueller, L., Alsalihi, Z., Verstraete, T., 2014, Multipoint Multi-objective Optimization of a Low Solidity Circular Cascade Diffuser in Centrifugal Blowers, ASME, GT2014-26013, pp.1–10, Duesseldorf, Germany.

    Google Scholar 

  9. Ishida, M., Murakami, T., Sakaguchi, D., Ueki, H., Hayami, H. and Senoo, Y., 2010, Analysis of Secondary Flow Behavior in Low Solidity Cascade Diffuser of a Centrifugal Blower, ASME GT2010-2861 Glasgow, UK.

    Book  Google Scholar 

  10. Pierret, S. and van den Braembussche, R. A., 1999, Turbomachinery Blade Design Using a Navier Stokes Solver and Artificial Neural Networks, Journal of Turbomachinery, Trans. ASME, Vol.121, pp.326–332.

    Article  Google Scholar 

  11. Verstraete, T., Alsalihi, Z., van den Braenbussche, R. A., 2010, Multidisciplinary Optimization of a Radial Compressor for Micro gas Turbine Applications, Journal of Turbomachinery, Trans. ASME, Vol.132, 031004.

    Article  Google Scholar 

  12. Verstraete, T., 2008, Multidisciplinary Turbomachinery Component Optimization Considering Performance, Stress, and Internal Heat Transfer, PhD Thesis, von Karman Institute for Fluid Dynamics and University of Gent, Belgium.

    Google Scholar 

  13. Mueller, L., Alsalihi, Z., Verstraete, T., 2013, Multidisciplinary Optimization of a Turbocharger Radial Turbine, Journal of Turbomachinery, Trans. ASME, Vol.135, 021022.

    Article  Google Scholar 

Download references

Acknowledgements

The computational simulation was performed on the cluster computer system of Graduate School of Science and Technology in Nagasaki University. This research work was financially supported by Harada memorial foundation and Japan Science and Technology Agency.

Author information

Authors and Affiliations

  1. Nagasaki University, 1-14, Bunkyo-machi, Nagasaki, 852-8521, Japan

    Daisaku Sakaguchi & Daiki Sakue

  2. Yangon Technological University, Insein Road, East Gyogone, Insein Township, Yangon, Myanmar

    Min Thaw Tun

Authors
  1. Daisaku Sakaguchi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Daiki Sakue
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Min Thaw Tun
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Daisaku Sakaguchi.

Additional information

This research work was financially supported by Harada memorial foundation and Japan Science and Technology Agency.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sakaguchi, D., Sakue, D. & Tun, M.T. Global Search of a Three-dimensional Low Solidity Circular Cascade Diffuser for Centrifugal Blowers by Meta-model Assisted Optimization. J. Therm. Sci. 27, 111–116 (2018). https://doi.org/10.1007/s11630-018-0991-6

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11630-018-0991-6

Keywords

Search

Navigation