Numerical Computation of Temperature in APU Compartment of Passenger Plane

Abstract:

In order to study heat transfer process in APU compartment of passenger plane and to perform structure thermal analysis, temperature field of APU compartment has been calculated by numerical computation. The computation model of flow and heat transfer process in APU compartment are setup by commercial CFD software Fluent, Realizable k-ε turbulent model and S2S thermal radiation model are used, and the flow field, temperature and heat flow information are acquired. Radiation heat transfer is the major heat transfer process in APU compartment; APU fireproofing cover and heat insulation hood of exhaust pipe function work as radiation heat shielding screens; and cooling air in the APU fireproofing cover plays an important part in decreasing the temperature of the fireproofing cover; the injection cooling air in the exhaust pipe reduced the wall temperature effectively. The results provide reference to optimization design.

• Periodical: Applied Mechanics and Materials (Volumes 220-223)
• Pages: 855-858
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.220-223.855
• Online since: November 2012
• Authors: Rang Shu Xu, Nana Zhang, Ling Niu, Meng Yang
• Keywords: APU Compartment, Flow and Heat Transfer, Numerical Computation, Passenger Plane, Temperature Field

References

[1] Tao Chen, Weilin Zhu Ge, Kai Zhao. Thermal fluid analysis of overall engine thermal management system, [C]. China Internal Combustion Engine Society 2005 Academic Year and the APC 2005 Annual Conference Proceedings, Wuhan: China Internal Combustion Engine Society, 2005.(In Chinese)

DOI: 10.1115/ices2005-1099

[2] A11sn DA, Lasecki MP. Thermal management evolution and controlled coolant flow [J]. SAE Paper 2001-01-1732.

[3] Minli Bai, Jizu Lv, Tiexin Ding, Flow and heat transfer numerical simulation of six-cylinder diesel engine cooling system [J], Transactions of 2004 (6): 525-531. (In Chinese)

[4] Jaesoo Lee, Ph.D. Simulation Method for the Fire Suppression Process Inside the Engine Core and APU Compartments [R]. Seattle: The Boeing Company, WA 98124-2207,(2002)

[5] Burke J, Haws J. Vehicle Thermal Systems Modeling Using FLOWMASTER2 [J]. Vehicle Thermal Management Systems Conference, 2001.

DOI: 10.4271/2001-01-1696

[6] Shi Wen, Liangchen Shi, Yiru Ren, FLUENT fluid calculation and application tutorial [M] Beijing: Tsinghua University Press, 2008.11. (In Chinese)

[7] Shiming Yang, WenshuanTao. Heat transfer [M]. Beijing: Higher Education Press, 1998.9. (In Chinese)