Skip to main content
Disciplines
Automotive Business IT + Informatics Construction + Real Estate Electrical Engineering + Electronics Energy + Sustainability Insurance + Risk Finance + Banking Management + Leadership Marketing + Sales Mechanical Engineering + Materials
Events
DE
EN
Books
Journals
Topic Page
Marketing
Start single access now
Access for companies
EXTENDED SEARCH
Log in
Top
Published in:
Performance Enrichment of CI Engine Fueled with TiO2 Additive Blended Biodiesel Through Air Nanobubbles Read chapter Read first chapter

2022 | OriginalPaper | Chapter

Study of Aerodynamic and Aerothermal Characteristics of Blunted Power Law Bodies

Authors : M. S. Sanjay Krishna, Vinod Kotebavi

Published in: Technology Innovation in Mechanical Engineering

Publisher: Springer Nature Singapore

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Power law is mainly known for its relationship between two variables, as a variable change in one quantity results in a proportional change to the other variable. The power law bodies are designed based on the power law equation y α xn, where n is known as the exponent of power law, such that as n value increases the body gets aerodynamically sharp. It is used for designing the waveriders, which protect the pressure spillage by help of shockwave, hence extra lift and reduced drag. In this study, power law body designs are done for n = 0.25, 0.5, 0.75, 0.8, 0.9, and 1. The numerical simulation is done in Ansys Fluent. The aerothermal and aerothermodynamics study of power law bodies are done for different Mach numbers of 6, 7, 8, 9, and 10. Bodies are blunted with radius of 0.01 cm, 0.02 cm, 0.0505 cm, and 0.074 cm. The results are compared with blunted cone. Shock standoff distance is also measured, which is used for studying waverider. It is concluded that blunting of power law bodies is better than blunted cone leading-edge bodies, the heat transfer rate for blunted leading edge decreased to the level of n< =0.5 power law bodies which are blunt in nature and for n = 0.9 and n = 0.75, blunted leading edge has smallest shock standoff distance.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

inform now
previous chapter Novel Hybrid Bio Composite PLA Filaments Reinforced with Bio Fillers for 3D Printing
next chapter Optimizing Thermal Comfort for Office Room Using CFD Analysis
Literature
1.
Santos, W.F.N.: Aerodynamic heating performance of power law leading edges in rarefied hypersonic flow. J. Braz. Soc. of Mech. Sci. Eng. XXVII (2005). Author, F., Author, S.: Title of a proceedings paper. In: Editor, F., Editor, S. (eds.) CONFERENCE 2016, LNCS, vol. 9999, pp. 1–13. Springer, Heidelberg (2016)
2.
Santos, W.F.N.: Power-law shaped leading edges in rarefied hypersonic flow. J. Spacecraft Rockets 43(5), (2004). Author, F.: Contribution title. In: 9th International Proceedings on Proceedings, pp. 1–2. Publisher, National Institute for Space Research, 12630–000 Cachoeira Paulista, Brazil
3.
Santos, W.F.N.: Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow. Combustion Propulsion Laboratory National Instit. Space Res. J. Spacecraft Rockets 43(5), (2005)
4.
Peckham, D.H.: Measurements of pressure distribution and shock-wave shape on power-law bodies at a mach number of 6.85. Ministry of Aviation, Aeronautical Research Council (1967)
5.
Anderson Jr, J.D.: In: Hypersonic and High Temperature Gas Dynamics. 2nd edn (2000)
6.
Santos, W.F.N., Lewis, M.J.: Calculation of shock wave structure over power law bodies in hypersonic flow. National Inst. Space Res. Cachoeira Paulista J. Spacecraft Rockets 43(5), (2005)
7.
Santos, W.F.N.: Aerothermodynamic performance analysis of hypersonic flow on power law leading edges. J. Spacecraft Rockets 43(5), (2006). National Institute for Space Research, 12630–000 Cachoeira Paulista-SP, Brazil and Mark J.
8.
Visakh, P., Akhil, J., Nagaraja, S.R.: Effect of counter flowing jet on heat transfer and drag in hypersonic re-entry vehicle. In: International Conference on Mechanical, Materials and Renewable Energy, Department of Mechanical Engineering, Amrita School of Engineering, Bengaluru, Amrita Vishwa Vidyapeetham, India (2018)
9.
G. Gopala Krishnan, Akhil J. and Nagaraja S.R. 2015, Heat Transfer Analysis on Hypersonic Reentry Vehicles with Spikes, 1st International ISHMT-ASTFE Heat and Mass Transfer Conference IHMTC2015, Thiruvannanthapuram, India, December 2015.
10.
Sreekanth, N., Akhil, J., Nagaraja, S.R.: Design and analysis of secondary spike on blunt head. Indian J. Sci. Technol. 9(45), (2016)
11.
Rajesh, R., Rakesh, S.G.: Effect of dimensions of various spikes of a spiked cylinder on the buzz phenomenon subjected to hypersonic flow. Int. J. Fluid Mech. Res. 45(5), 377–388 (2018). Department of Mechanical Engineering, Amrita School of Engineering, Bengaluru, Amrita Vishwa Vidyapeetham, India
12.
Rajesh, R., Rakesh, S.G.: Effect of dimensions of sharp spiked cylinder on the buzz phenomenon subjected to hypersonic flow. Int. J. Fluid Mech. Res. 44(6), 469–485 (2017). Department of Mechanical Engineering, Amrita School of Engineering, Bengaluru, Amrita Vishwa Vidyapeetham, India
13.
Rajesh, R., Rakesh, S.G.: Effect on the drag coefficient of various spiked cylinders during buzz phenomenon subjected to hypersonic flows. J. Brazilian Soc. Mech. Sci. Eng. 42(6), (2020). Department of Mechanical Engineering, Amrita School of Engineering, Bengaluru, Amrita Vishwa Vidyapeetham, India ISSN 1678–5878
Metadata
Title
Study of Aerodynamic and Aerothermal Characteristics of Blunted Power Law Bodies
Authors
M. S. Sanjay Krishna
Vinod Kotebavi
Copyright Year
2022
Publisher
Springer Nature Singapore
Book
Technology Innovation in Mechanical Engineering

Print ISBN: 978-981-16-7908-7

Electronic ISBN: 978-981-16-7909-4

Copyright Year: 2022

DOI
https://doi.org/10.1007/978-981-16-7909-4_66