Simulation Study on the Airflow and Heat Transfer Characteristic in a Nacelle

2008-01-1820

06/23/2008

Event
2008 SAE International Powertrains, Fuels and Lubricants Congress
Authors Abstract
Content
Five design schemes of helicopter nacelle ventilation cooling system were proposed to provide efficiently cooling for the nacelle. In order to evaluate the cooling effect of these design schemes, the characteristic of airflow and heat transfer in the nacelle was numerically calculated by a general CFD software. Unstructured mesh and finite volume method (FVM) were applied for calculation regions and governing equations discreteness, and standard k - ε model was adopted to solve turbulent governing equation. For five schemes of nacelle cooling system, the influence of cooling air inlet size, position, mass flow rate and ambient temperature under hover condition on the flow and temperature field distributions was discussed. Also transient calculations were carried out when the engine was shut down. The results provided a theoretical basis for design and optimization of nacelle ventilation cooling system.
Meta TagsDetails
DOI
https://doi.org/10.4271/2008-01-1820
Pages
9
Citation
Xie, Y., Yu, J., and Gao, H., "Simulation Study on the Airflow and Heat Transfer Characteristic in a Nacelle," SAE Technical Paper 2008-01-1820, 2008, https://doi.org/10.4271/2008-01-1820.
Additional Details
Publisher
Published
Jun 23, 2008
Product Code
2008-01-1820
Content Type
Technical Paper
Language
English