Advances in aircraft and spacecraft science

  • 제2권4호
  • /
  • Pages.469-482
  • /
  • 2015
  • /
  • 2287-528X(pISSN)
  • /
  • 2287-5271(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Assessment of the performances of a heat exchanger in a light helicopter

  • Carozza, Antonio (Dipartimento di Meccanica dei Fluidi, Centro Italiano Ricerche Aerospaziali)
  • 투고 : 2015.06.16
  • 심사 : 2015.09.07
  • 발행 : 2015.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study has the aim to develop a numerical design regarding the position and the inner performances of a heat exchanger in a light helicopter. the problem was to find first of all the best position of the heat exchanger inside the engine vane in order to maximize the air flow rate capable to pass through the heat exchanger section. It is to be said that the only air contribution in the vane comes from the opening present in the roof under the main rotor. The design has been performed by means of the commercial code Fluent and using the well known grid generator ICEM CFD. Different positions are first investigated so to establish the best one. Subsequently, different areas of the opening on the roof have been considered in order to maximize even more the flow rate in the heat exchanger that was not sufficient based on the first guess of velocity, as aforementioned. At the end interesting design results are presented and discussed by contours of fields and values.

키워드

참고문헌

  1. Alshare, A.A., Simon, T.W. and Strykowski, P.J. (2009), "Simulations of flow and heat transfer in a serpentine heat exchanger having dispersed resistance with porous-continuum and continuum models", Int. J. Heat Mass Transf., 53, 1088-1099.
  2. Carozza, A., Mingione, G. and Pezzellla, G. (2013), "Computational flow field analyses on aeronautical oil cooling systems", Proceedings of the 21th AIDAA Conference, Napoli, September.
  3. Carozza, A. (2015), "An innovative approach for the numerical simulation of oil cooling systems", Adv. Aircraf. Space. Sci., 2(2), 169-182. https://doi.org/10.12989/aas.2015.2.2.169
  4. ESPOSA Grant Agreement PART B: agreement no: 284859.
  5. Fluent-Commercially available CFD software package based on the Finite Volume method, A product of Fluent Inc., Centerra Resource Park, 10 Cavendish Court, Lebanon, NH, USA.
  6. Hayes, A.M., Khan, J.A., Shaaban, A.H. and Spearing, I.G. (2008), "The thermal modeling of a matrix heat exchanger using a porous medium and the thermal non-equilibrium model", Int. J. Therm. Sci., 47, 1306-1315. https://doi.org/10.1016/j.ijthermalsci.2007.11.005
  7. Jahanshahi, E., Gandjalikhan Nassab, S.A. and Jafari, S. (2010), "Thermal analysis of a 2-D heat recovery system using porous media including lattice Boltzmann simulation of fluid flow", Int. J. Therm. Sci., 49, 1031-1041. https://doi.org/10.1016/j.ijthermalsci.2009.12.004
  8. Menter, F.R. (1993), "Zonal two equation $k-{\omega}$ turbulence models for aerodynamic flows", AIAA Paper 93-2906.
  9. Missirilis, D., Yakinthos, K., Palikaras, A., Katheder, K. and Goulas, A. (2005), "Experimental and numerical investigation of the flow field through a heat exchanger for aero-engine applications", Int. J. Heat Fluid Flow, 26, 440-458. https://doi.org/10.1016/j.ijheatfluidflow.2004.10.003
  10. Missirilis, D., Donnerhack, S., Seite, O., Albanakis, C., Sideridis, A., Yakinthos, K. and Goulas, A. (2010), "Numerical development of a heat transfer and pressure drop porosity model for a heat exchanger for aero engine applications", Appl. Therm. Eng., 30, 1341-1350. https://doi.org/10.1016/j.applthermaleng.2010.02.021
  11. Narasimhan, A. and Sumuthra Raju, K.S. (2007), "Effect of variable permeability porous medium interconnectors on the thermo-hydraulics of heat exchanger modeled as porous media", Int. J. Heat Mass Transf., 50, 4052-4062. https://doi.org/10.1016/j.ijheatmasstransfer.2007.01.058
  12. Pavel, B.I. and Mohamad, A.A. (2004), "An experimental and numerical study on heat transfer enhancement for gas heat exchangers fitted with porous media", Int. J. Heat Mass Transf., 47, 4939-4952. https://doi.org/10.1016/j.ijheatmasstransfer.2004.06.014
  13. Tomimura, T., Hamano, K., Honda, Y. and Echigo, R. (2004), "Experimental study on multi-layered type of gas-to-gas heat exchanger using porous media", Int. J. Heat Mass Transf., 47, 4615-4623. https://doi.org/10.1016/j.ijheatmasstransfer.2003.10.043