Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel

Mohammad Reza Heidari; Mahdi Karami; Fata Mohammadi Fard

doi:doi:10.11648/j.ajpa.20130103.16

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Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel

Mohammad Reza Heidari, Mahdi Karami, Fata Mohammadi Fard

Published in American Journal of Physics and Applications (Volume 1, Issue 3)

Received: 20 October 2013 Published: 30 November 2013

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Abstract

The Present study is conducted to find out the best inlet conditions for designing process of a high-speed wind tunnel. The inlet conditions are appropriate for the cases that the real nozzle has not been calculated and downstream parts designers (such as test section and diffuser designers) need a reasonable upstream flow condition for their calculations. Inlet boundary condition of each case has been specified by User-Defined Function. The process of User-Defined Function (UDF) specification is time-consuming and is based on a try and error method. Several cases of inlet conditions have been designed and examined. The comparison of results is shown in terms of cross-sectional and axial distributions of parameters and contours of Mach number and static pressure. Finally, the 1.2 m-length Ogive curve with 0.5 degree initial angle and after that, the case of 1.2 m-length ducthave been chosen as the equivalent nozzles.

Published in	American Journal of Physics and Applications (Volume 1, Issue 3)
DOI	10.11648/j.ajpa.20130103.16
Page(s)	91-98
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2013. Published by Science Publishing Group

Keywords

High-Speed Flow, Wind Tunnel Design, Nozzle Curve Calculations, Computational Fluid Dynamics, Equivalent Nozzle

References

[1]	J.M.A.Longo,"Modeling of high-speed flow phenomena," RTO AVI Lecture series on Critical Technologies for High-speed Vehicle Development, Belgium, May, 2004.
[2]	R.E. Deem, "Pressure and heat-transfer distribution tests on a standard ballistic-type model HB-2 at mach 2 to 5, including the effects of shock impingement," Report S-R6, Douglas Aircraft Company, California, USA, Jun, 1963.
[3]	J.D. Gray, and E. E. Lindsay, "Summary report on aerodynamic characteristics of standard model HB-1 and HB-2," Technical report AEDC-TDR-63-137, Arnold engineering development center, USA, 1964.
[4]	S. Kuchi-Ishi, And E. Watanabe, "Comparative force/heat flux measurements between JAXA hypersonic test facilities using standard model HB-2 Part 1&2," JAXA research and development report, Japan Aerospace Exploration Agency, Japan, 2005.
[5]	J.D.Anderson, "Modern compressible flow with historical perspective," McGraw-Hill Inc., New York, 2003.
[6]	Group of writers, "Handbook of supersonic aerodynamics," Vol.6. Sec.17 Ducts, Nozzles and Diffusers, NAVWEPS Report 1488, 1964.
[7]	B. E. Launder, N. D. Sandham, "Closure strategies for turbulent and transitional flows," Cambridge University Press, Cambridge, UK, 2002.

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APA Style

Mohammad Reza Heidari, Mahdi Karami, Fata Mohammadi Fard. (2013). Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel. American Journal of Physics and Applications, 1(3), 91-98. https://doi.org/10.11648/j.ajpa.20130103.16

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ACS Style

Mohammad Reza Heidari; Mahdi Karami; Fata Mohammadi Fard. Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel. Am. J. Phys. Appl. 2013, 1(3), 91-98. doi: 10.11648/j.ajpa.20130103.16

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AMA Style

Mohammad Reza Heidari, Mahdi Karami, Fata Mohammadi Fard. Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel. Am J Phys Appl. 2013;1(3):91-98. doi: 10.11648/j.ajpa.20130103.16

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@article{10.11648/j.ajpa.20130103.16,
  author = {Mohammad Reza Heidari and Mahdi Karami and Fata Mohammadi Fard},
  title = {Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel},
  journal = {American Journal of Physics and Applications},
  volume = {1},
  number = {3},
  pages = {91-98},
  doi = {10.11648/j.ajpa.20130103.16},
  url = {https://doi.org/10.11648/j.ajpa.20130103.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20130103.16},
  abstract = {The Present study is conducted to find out the best inlet conditions for designing process of a high-speed wind tunnel. The inlet conditions are appropriate for the cases that the real nozzle has not been calculated and downstream parts designers (such as test section and diffuser designers) need a reasonable upstream flow condition for their calculations. Inlet boundary condition of each case has been specified by User-Defined Function. The process of User-Defined Function (UDF) specification is time-consuming and is based on a try and error method. Several cases of inlet conditions have been designed and examined. The comparison of results is shown in terms of cross-sectional and axial distributions of parameters and contours of Mach number and static pressure. Finally, the 1.2 m-length Ogive curve with 0.5 degree initial angle and after that, the case of 1.2 m-length ducthave been chosen as the equivalent nozzles.},
 year = {2013}
}

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TY  - JOUR
T1  - Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel
AU  - Mohammad Reza Heidari
AU  - Mahdi Karami
AU  - Fata Mohammadi Fard
Y1  - 2013/11/30
PY  - 2013
N1  - https://doi.org/10.11648/j.ajpa.20130103.16
DO  - 10.11648/j.ajpa.20130103.16
T2  - American Journal of Physics and Applications
JF  - American Journal of Physics and Applications
JO  - American Journal of Physics and Applications
SP  - 91
EP  - 98
PB  - Science Publishing Group
SN  - 2330-4308
UR  - https://doi.org/10.11648/j.ajpa.20130103.16
AB  - The Present study is conducted to find out the best inlet conditions for designing process of a high-speed wind tunnel. The inlet conditions are appropriate for the cases that the real nozzle has not been calculated and downstream parts designers (such as test section and diffuser designers) need a reasonable upstream flow condition for their calculations. Inlet boundary condition of each case has been specified by User-Defined Function. The process of User-Defined Function (UDF) specification is time-consuming and is based on a try and error method. Several cases of inlet conditions have been designed and examined. The comparison of results is shown in terms of cross-sectional and axial distributions of parameters and contours of Mach number and static pressure. Finally, the 1.2 m-length Ogive curve with 0.5 degree initial angle and after that, the case of 1.2 m-length ducthave been chosen as the equivalent nozzles.
VL  - 1
IS  - 3
ER  -

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Author Information

Mohammad Reza Heidari

Islamic Azad University, Parand Branch, Tehran, IRAN
Mahdi Karami

Islamic Azad University, Parand Branch, Tehran, IRAN
Fata Mohammadi Fard

Islamic Azad University, Parand Branch, Tehran, IRAN

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Plain Text BibTeX RIS

APA Style

Mohammad Reza Heidari, Mahdi Karami, Fata Mohammadi Fard. (2013). Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel. American Journal of Physics and Applications, 1(3), 91-98. https://doi.org/10.11648/j.ajpa.20130103.16

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ACS Style

Mohammad Reza Heidari; Mahdi Karami; Fata Mohammadi Fard. Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel. Am. J. Phys. Appl. 2013, 1(3), 91-98. doi: 10.11648/j.ajpa.20130103.16

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AMA Style

Mohammad Reza Heidari, Mahdi Karami, Fata Mohammadi Fard. Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel. Am J Phys Appl. 2013;1(3):91-98. doi: 10.11648/j.ajpa.20130103.16

Copy | Download

@article{10.11648/j.ajpa.20130103.16,
  author = {Mohammad Reza Heidari and Mahdi Karami and Fata Mohammadi Fard},
  title = {Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel},
  journal = {American Journal of Physics and Applications},
  volume = {1},
  number = {3},
  pages = {91-98},
  doi = {10.11648/j.ajpa.20130103.16},
  url = {https://doi.org/10.11648/j.ajpa.20130103.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20130103.16},
  abstract = {The Present study is conducted to find out the best inlet conditions for designing process of a high-speed wind tunnel. The inlet conditions are appropriate for the cases that the real nozzle has not been calculated and downstream parts designers (such as test section and diffuser designers) need a reasonable upstream flow condition for their calculations. Inlet boundary condition of each case has been specified by User-Defined Function. The process of User-Defined Function (UDF) specification is time-consuming and is based on a try and error method. Several cases of inlet conditions have been designed and examined. The comparison of results is shown in terms of cross-sectional and axial distributions of parameters and contours of Mach number and static pressure. Finally, the 1.2 m-length Ogive curve with 0.5 degree initial angle and after that, the case of 1.2 m-length ducthave been chosen as the equivalent nozzles.},
 year = {2013}
}

Copy | Download

TY  - JOUR
T1  - Numerical Investigation on the Effect of Inlet Conditions on the Oblique Shock System in a High-Speed Wind Tunnel
AU  - Mohammad Reza Heidari
AU  - Mahdi Karami
AU  - Fata Mohammadi Fard
Y1  - 2013/11/30
PY  - 2013
N1  - https://doi.org/10.11648/j.ajpa.20130103.16
DO  - 10.11648/j.ajpa.20130103.16
T2  - American Journal of Physics and Applications
JF  - American Journal of Physics and Applications
JO  - American Journal of Physics and Applications
SP  - 91
EP  - 98
PB  - Science Publishing Group
SN  - 2330-4308
UR  - https://doi.org/10.11648/j.ajpa.20130103.16
AB  - The Present study is conducted to find out the best inlet conditions for designing process of a high-speed wind tunnel. The inlet conditions are appropriate for the cases that the real nozzle has not been calculated and downstream parts designers (such as test section and diffuser designers) need a reasonable upstream flow condition for their calculations. Inlet boundary condition of each case has been specified by User-Defined Function. The process of User-Defined Function (UDF) specification is time-consuming and is based on a try and error method. Several cases of inlet conditions have been designed and examined. The comparison of results is shown in terms of cross-sectional and axial distributions of parameters and contours of Mach number and static pressure. Finally, the 1.2 m-length Ogive curve with 0.5 degree initial angle and after that, the case of 1.2 m-length ducthave been chosen as the equivalent nozzles.
VL  - 1
IS  - 3
ER  -

Copy | Download