Aerotecnica Missili & Spazio

, Volume 96, Issue 1, pp 56–62 | Cite as

Numerical investigation of the internal and external thermal fields for a nacelle in pusher configuration

  • A. Carozza
  • G. Mingione
  • G. Pezzella
  • G. Serino


The ESPOSA project “Efficient Systems and PrOpulsion for Small Aircraft” is funded by the European Commission within the 7th Framework Programm. It is coordinated by PBS from the Chezk Repubblic and it involves several partners among European industries, research centers and universities. The project has the objective to develop and integrate novel design and manufacture technologies for small gas turbine engines up to 1000 kW, thus providing aircraft manufacturers with better choice of modern propulsion units. Several aircrafts and engines have been selected as test beds for the study. One of this was the EM-1 ORKA aircraft that will be equipped with the 180 kW TP 100 turboprop engines from Czech company PBS Velká Bíteš. An aeronautical engine is a complex machine composed of different components operating at different temperatures that in conjunction with the nacelle creates a crowded region with the coupled heat transfer mechanisms to be covered by the nacelle cooling/ventilation system. Therefore, the engine/nacelle thermo-fluid dynamics analysis represents a critical design issue since conductive, convective and rediative heat transfer mechanisms must be addressed. In this framework, the present research effort reports on a high fidelity, fully coupled, aero-thermal design procedure that has been set-up and tested to evaluate the nacelle skin temperature and to check that it remains under the critical temperature for the material device.



Gas Turbine Engine


Efficient Systems and Propulsion for Small Aircraft


reference length [m]


absorbing coefficient


scattering coefficient

velocity vector \(\left[ {\frac{m}{s}} \right]\)


density \(\left[ {\frac{{kg}}{{{m^3}}}} \right]\)


dynamic viscosity [Pa · s]


thermal diffusivity \(\left[ {\frac{{{m^2}}}{s}} \right]\)


thermal conductivity \(\left[ {\frac{W}{{mK}}} \right]\)

source term vector [Pa]

gravity acceleration vector \(\left[ {\frac{m}{{{s^2}}}} \right]\)


stress tensor [Pa]


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    D. K. Hennecke, HEAT TRANSFER PROBLEMS IN AERO-ENGINES, Technical University Darmstadt, Germany, pp 353–376.Google Scholar
  2. 2.
    A. Bejan, Convection heat transfer, John Wiley & Sons, 2013.CrossRefGoogle Scholar
  3. 3.
    H. Van Tongeren, M. Bakker, O. Boelens, R. Van Ben-them, A. Carozza, C. Banu, M.G. Cojocaru, P. Lapka, P. Furmanski, K. Swiergala, A. Peluffo, “Preliminary Thermal Report for PU2 Configuration, ESPOSA, 2013.Google Scholar
  4. 4.
    G. Buonomo, M. Musto, N. Bianco, G. Rotondo, G. Pezzella and G. Mingione, “Aerothermal Analysis of An Aircraft Nacelle in the Framework of a Fully Coupled Approach”, Proceedings of the Italian Association of Aeronautics and Astronautics, XXII Conference, Napoli, 9–12 September 2013.Google Scholar
  5. 5.
    G. Buonomo, M. Musto, N. Bianco, G. Rotondo, G. Pezzella and G. Mingione, “Model Sensitivity Analysis for the Numerical Simulation of an Engine Air Cooling System”, Proceedings of the Italian Association of Aeronautics and Astronautics, XXII Conference, Napoli, 9–12 September 2013.Google Scholar
  6. 6.
    A. Carozza, G. Mingione and G. Pezzella, “Computational Flow Field Analyses on Aeronautical Oil Cooling Systems”, Proceedings of the Italian Association of Aeronautics and Astronautics, XXII Conference, Napoli, 9–12 September 2013.Google Scholar
  7. 7.
    ANSYS FLUENT, Release 14.5, User’s Guide, 2013.Google Scholar
  8. 8.
    C. G. Biedma, “Fully Coupled Aero-Thermal Modeling of Aircraft Powerplant Installations with COTS Tools”, Getafe (Madrid), 28906 SPAINGoogle Scholar
  9. 9.
    J. Lucioli, “CFD Analysis of a Nacelle at High Angle of Incidence”, Politecnico di Milano. Milano, 2011.Google Scholar
  10. 10.
    W. A. Fiveland, “Three-dimensional radiative heattransfer solutions by the discreteordinates method”, Journal of Thermophysics and Heat Transfer, Vol. 2, No. 4, pp. 309–316, 1988.CrossRefGoogle Scholar
  11. 11.
    J. C. Chai, S. L. Haeok, and S. V. Patankar, “Ray effect and false scattering in the discrete ordinates method”, Numerical Heat Transfer, Part B Fundamentals, Vol. 24, No. 4, pp. 373–389, 1993.CrossRefGoogle Scholar
  12. 12.
    A. S. Jamaluddin and P. J. Smith, “Predicting radiative transfer in rectangular enclosures using the discrete ordinates method”, Combustion Science and Technology, Vol. 59, No. 4–6, pp. 321–340, 1988.CrossRefGoogle Scholar
  13. 13.
    T. Y. Kim and S. W. Baek, “Analysis of combined conductive and radiative heat transfer in a two-dimensional rectangular enclosure using the discrete ordinates method”, International journal of heat and mass transfer, Vol. 34, No. 9, pp. 2265–2273, 1991.CrossRefGoogle Scholar
  14. 14.
    Z. Guo and S. Kumar, “Three-dimensional discrete ordinates method in transient radiative transfer”, Journal of thermophysics and heat transfer, Vol. 16, No. 3, pp. 289–296, 2002.CrossRefGoogle Scholar
  15. 15.
    H. Brian and Z. Guo, “Comparison of the discrete-ordinates method and the finite-volume method for steady-state and ultrafast radiative transfer analysis in cylindrical coordinates”, Numerical Heat Transfer, Part B: Fundamentals, Vol. 59, No. 5, pp. 339–359, 2011.CrossRefGoogle Scholar
  16. 16.
    R. R. Dobbins et al, “Radiative Emission and Reabsorption in Laminar, EthyleneFueled Diffusion Flames Using the Discrete Ordinates Method”, Combustion Science and Technology, Vol. 187, No. 1–2, pp. 230–248, 2015.CrossRefGoogle Scholar
  17. 17.
    M. Baghban, S. H. Mansouri and Z. Shams, “Inverse radiationconduction estimation of temperature-dependent emissivity using a combined method of genetic algorith-mand conjugate gradient”, Journal of Mechanical Science and Technology Vol. 28, No. 2, pp. 739–745, 2014.CrossRefGoogle Scholar
  18. 18.
    J. Ma, B. W. Li and J. R. Howell, “Thermal radiation heat transfer in one-and two-dimensional enclosures using the spectral collocation method with full spectrum kdis-tribution model”, International Journal of Heat and Mass Transfer, Vol. 71, pp. 35–43, 2014.CrossRefGoogle Scholar
  19. 19.
    P. J. Coelho, “Advances in the discrete ordinates and finite volume methods for the solution of radiative heat transfer problems in participating media”, Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 145, pp. 121–146, 2014.CrossRefGoogle Scholar
  20. 20.

Copyright information

© AIDAA Associazione Italiana di Aeronautica e Astronautica 2017

Authors and Affiliations

  • A. Carozza
    • 1
  • G. Mingione
    • 1
  • G. Pezzella
    • 2
  • G. Serino
    • 1
  1. 1.Dipartimento di Fluidodinamica, Laboratorio di Tecnologie Aerodinamiche e GhiaccioCIRA, “Centro Italiano Ricerche Aerospaziali”Italy
  2. 2.Laboratorio di Analisi ed Estrapolazione al VoloCIRA, “Centro Italiano Ricerche Aerospaziali”Italy

Personalised recommendations