DOI QR코드

DOI QR Code

산불에 의한 열적상승유동 해석에 관한 연구

A Study on the Model of Thermal Plume Flow in the Forest Fire

  • 박준상 (한라대학교 기계공학과) ;
  • 지영무 (한국과학기술원 기계공학과 대학원) ;
  • 전향식 (한국항공우주연구원) ;
  • 전대근 (한국항공우주연구원)
  • 발행 : 2009.02.01

초록

A study is made of thermal plume flow model for the development of helicopter simulator over the forest fire. For the numerical analysis, a line fire model with Boussinesq fluid approximation, which is idealized by the spreading shape of forest fire on the ground, is adopted. Comparing full 2-D and 3-D numerical solutions with 2-D similarity solution, it has been built a new model that is useful for temperature prediction along the symmetric vertical axis of fire model for both cases of laminar and turbulent flow.

키워드

참고문헌

  1. H. Schuh, 1999, Boundary layers of temperature, Section B.6 of Tollmien's Boundary Layers
  2. C.S. Yih, 1962, 'Laminar free convection due to a line source of heat,' Trans. A., Geophys. Un. Vol. 33(5), pp. 669-672
  3. I.G. Sevruk, 1958, 'Laminar convection over a horizontal wire,' J. Appl. Math. Mech., Vol. 22, pp. 807-812 https://doi.org/10.1016/0021-8928(58)90026-1
  4. L.J. Crane, 1959, 'Thermal convection from a horizontal wire,' Z. Angew. Math. Phys. Vol. 10, pp. 453-460 https://doi.org/10.1007/BF01601354
  5. D.B. Spalding, R.G. Cruddace, 1961, 'Theory of the steady laminar bouyant flow above a line heat source in a fluid of large Prandtl number and temperature dependent viscosity,' Int. J. Heat Mass Transfer, Vol. 3, pp. 55-59 https://doi.org/10.1016/0017-9310(61)90005-9
  6. T.Fujii, 1963, 'Theory of steady laminar natural convection above a horizontal line heat source and a point heat source,' Int. J. Heat Mass Transfer,' Vol. 6, pp. 597-606 https://doi.org/10.1016/0017-9310(63)90015-2
  7. T. Fujii, I. Morioka, H. Uehara, 1973, 'Buoyant plume above a horizontal line heat source,' Int. J. Heat Mass Transfer, Vol. 16, pp. 755-768 https://doi.org/10.1016/0017-9310(73)90089-6
  8. E. Moses, G. Zocchi, A. Libchaber, 'An experimental study of laminar plumes,' J. Fluid Mech., Vol. 251, pp. 581-601 https://doi.org/10.1017/S0022112093003532
  9. A. Woods, 1997, 'A note on non- Boussinesq plumes in an incompressible stratified environment,' J. Fluid Mech., Vol. 345, pp. 347-356 https://doi.org/10.1017/S0022112097006332
  10. G.G. Rooney, P.F. Linden, 1996, 'Similarity considerations for non- Boussinesq plumes in an unstratified environment,' Vol. 318, pp. 237-250 https://doi.org/10.1017/S0022112096007100
  11. J.S. Turner, 1979, 'Buoyancy effects in fluids,' Cambridge Univ. Press
  12. R.J. Brand, F.J. Lahey, 1967, 'Heated laminar vertical jet,' J. Fluid Mech., Vol. 29, pp. 305-315 https://doi.org/10.1017/S0022112067000837
  13. P.R. Spalart, S.R. Allmaras, 1994, 'A one- equation turbulence model for aerodynamic flows,' La Recherche Aerospatiale No.1, pp.5-21
  14. S.L. Lee, H.W. Emmons, 1961, 'A study of natural convection above a line wire,' J. Fluid Mech., Vol. 11, pp. 353-368 https://doi.org/10.1017/S0022112061000573
  15. B. Gebhart, Y. Jaluria, R.L. Mahanjan, B. Sammakia, 1988, 'Buoyancy induced flows and transport,' Hemisphere Press