SpringerLink
Log in

Optimization of Inlet Swirl for Flow Separation in Annular Diffuser

  • Conference paper
  • First Online:
Advances in Electromechanical Technologies

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

  • 985 Accesses

Abstract

The flow development characteristics and its performance have been studied with the help of computational fluid dynamics with various inlet swirl angle inside the parallel hub axial annular diffuser having an equivalent cone angle 15° for area ratio 2. The analysis predicts the effect on Non-dimensional velocity profile, streamline velocity, static pressure recovery on the casing wall, and reversal of flow on the diverging part of the diffuser. To predict the optimum inlet swirl angle encounters the optimum performance with no flow separation either on hub or casing wall. The results reveal that increasing the inlet swirl angle leads to distortion of the longitudinal velocity profile at the diffuser exit.

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

Access this chapter

Log in via an institution

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Chapter
EUR 29.95
Price includes VAT (Spain)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
EUR 245.03
Price includes VAT (Spain)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
EUR 311.99
Price includes VAT (Spain)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free ship** worldwide - see info
Hardcover Book
EUR 311.99
Price includes VAT (Spain)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free ship** worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Similar content being viewed by others

Abbreviations

AR:

Area ratio

L :

Diffuser length

x/L:

Non-dimensional axial length

θ :

Wall divergence angle

C p :

Pressure recovery coefficient

P :

Static pressure

y/Ym:

Non-dimensional radial length

ɳ :

Diffuser effectiveness

References

  1. Sovran G (1967) Experimentally determined optimum geometries for rectilinear diffusers with rectangular, conical, or annular cross section. Fluid Mech Internal Flow 270–319

    Google Scholar 

  2. Coladipietro R, Schneider JH, Shridhar K (1974) Effects of inlet flow conditions on the performance of equi-angular annular diffusers. CSME Paper No. 73–84

    Google Scholar 

  3. Lohmann RP, Markowski SJ, Brookman ET (1979) Swirling flow through annular diffusers with conical walls. J Fluids Eng 101(2):224–229

    Article  Google Scholar 

  4. Stevens SJ, Williams QJ (1980) The influence of Inlet conditions on the performance of annular diffusers. J Fluid Eng 102:357–363

    Google Scholar 

  5. Ganesan V (1980) Flow and boundary layer development in straight core annular diffusers. Int J Eng Sci 18(2):287–304

    Article  Google Scholar 

  6. Buice CU, Eaton JK (1995) Experimental investigation of flow through an asymmetric plane diffuser. Report No. TSD-107, Thermosciences Division, Department of Mechanical Engineering, Stanford University, Stanford, CA, USA

    Google Scholar 

  7. Klomp ED (1997) Performance of straight-walled annular diffusers with swirling flow. Aeronaut J 101(1010):467–480

    Google Scholar 

  8. Ubertini S, Desideri U (2000) Experimental performance analysis of an annular diffuser with and without struts. Exp Thermal Fluid Sci 22(3–4):183–195

    Article  Google Scholar 

  9. Japikse D (2002) Correlation of annular diffuser performance with geometry, swirl, and blockage. In: Proceedings of the 11th NASA/OSU thermal and fluids analysis workshop, pp 107–118

    Google Scholar 

  10. Anderson M (2008) Fluent CFD versus Sovran and Klomp diffuser data benchmark study. In: The 46th AIAA aerospace sciences meeting and exhibit, p. 665

    Google Scholar 

  11. Arora BB, Kumar M, Maji S (2010) Study of inlet conditions on diffuser performance. Int J Theoret Appl Mech 5(2):201–221

    Google Scholar 

  12. Arora BB, Kumar M, Mazi S (2010) Analysis of flow separation in wide-angle annular diffusers. Int J Appl Eng Res ISSN:0973–4562

    Google Scholar 

  13. Singh H, Arora BB (2019) Effect of area ratio on flow separation in annular diffuser. In: Advances in fluid and thermal engineering. Springer, Singapore, pp 297–305

    Google Scholar 

  14. Kumar M, Arora BB, Maji S, Maji S (2011) Effect of inlet swirl on the flow behavior inside the annular diffuser. Int J Dyn Fluids 7(2):181–188

    Google Scholar 

  15. Kumar M, Arora BB, Maji S, Maji S (2012) Effect of area ratio and inlet swirl on the performance of annular diffuser. Int J Appl Eng Res 7(13):1493–1506

    Google Scholar 

  16. Cerantola DJ, Birk AM (2015) Experimental validation of numerically optimized short annular diffusers. J Eng Gas Turbines Power 137(5):052604

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Delhi Technical University, Delhi, India

    Hardial Singh & B. B. Arora

Authors
  1. Hardial Singh
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. B. B. Arora
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Hardial Singh .

Editor information

Editors and Affiliations

  1. Department of Mechanical and Automation Engineering, HMR Institute of Technology and Management, New Delhi, Delhi, India

    V. C. Pandey

  2. Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, Delhi, India

    P. M. Pandey

  3. Department of Mechanical Engineering, Delhi Technical University, New Delhi, Delhi, India

    S. K. Garg

Rights and permissions

Reprints and permissions

Copyright information

© 2021 Springer Nature Singapore Pte Ltd.

About this paper

Check for updates. Verify currency and authenticity via CrossMark

Cite this paper

Singh, H., Arora, B.B. (2021). Optimization of Inlet Swirl for Flow Separation in Annular Diffuser. In: Pandey, V.C., Pandey, P.M., Garg, S.K. (eds) Advances in Electromechanical Technologies. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-5463-6_36

Download citation

  • DOI: https://doi.org/10.1007/978-981-15-5463-6_36

  • Published:

  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-5462-9

  • Online ISBN: 978-981-15-5463-6

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics

Search

Navigation