所属单位：能源与动力学院
发表刊物：INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
关键字：Helicopter Coupled working performance Thermal characteristics Infrared radiation
摘要：Although the temperature distributions and infrared characteristics on the helicopter fuselage and in the exhaust plume have been great investigated in previous literatures, most of them are only in hover condition. In order to extend these models to any flight condition, a new integrated methodology is proposed considering the construction coupling and energy transfer relation of the helicopter. In this integrated methodology, we put forward a helicopter model to estimate the flight performance, including required power and attitude of the rotor, and a component-based model of the engine to evaluate the working performance of engines and exhaust plume parameters under various symmetrical steady level flight conditions. After this analysis of coupled working performance, the characteristics of flow and temperature fields are investigated through computational fluid dynamics. Subsequently, infrared radiation characteristics of helicopters are analyzed by a ray tracing method. This work can provide useful information for the energy management design and infrared radiation suppression of helicopters. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN号：0017-9310
是否译文：否
发表时间：2017-12-01
合写作者：Li, Yanqing
通讯作者：宣益民
发表时间：2017-12-01