Modeling and Analysis of Helicopter Thermal and Infrared Radiation

Pan, Chengxiong; Zhang, Jingzhou; Shan, Yongkui

doi:10.1016/s1000-9361(11)60065-4

Cited by 39 publications

(16 citation statements)

References 7 publications

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“…l) Methodology. Most of the simulation methods combine the computation fluid mechanics thermal condition calculation radiation emission and radiation reflection (Mahikular et al, 2001;Anderssen, 2002;Jianwei and Qiang, 2009;Pan et al, 2011).…”

Section: Radiation Simulationmentioning

confidence: 99%

Small Aircraft Infrared Radiation Measurements Supporting the Engine Airframe Aero-thermal Integration

Rohács

Jankovics

Gál

et al. 2018

Period. Polytech. Transp. Eng.

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The large, EU Supported ESPOSA (Efficient Systems and propulsion for Small Aircraft) project has developed new small gas turbines for small aircraft. One of the important tasks was the engine - airframe aero-thermal radiation integration that included task of minimizing the infrared radiation of the small aircraft, too. This paper discusses the factors influencing on the aircraft infrared radiation, its possible simulation and measurements and introduces the results of small aircraft infrared radiation measurements. The temperature of aircraft hot parts heated by engines were determined for validation of methodology developed and applied to engine - aircraft thermal integration.

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Section: Radiation Simulationmentioning

confidence: 99%

Small Aircraft Infrared Radiation Measurements Supporting the Engine Airframe Aero-thermal Integration

Rohács

Jankovics

Gál

et al. 2018

Period. Polytech. Transp. Eng.

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“…The basic materials for analyzing arbitrary IR system are IR target and background images which are transformed as IR signatures with an intensity (gray-level) distribution corresponding to the temperature range of the IR target and background scene. Based on various theories such as heat transfer theory, atmospheric transfer characteristics, and radiation principle under material properties and atmospheric environment, various IR signature modeling methods have been studied [9][10][11][12][13]. And commercial IR signature modeling tools such as OKTAL-SE [14], Vega Prime Sensor [15], and MuSES [14] were developed for predicting IR signatures and simulating virtual reality by IR-WBs.…”

Section: Introductionmentioning

confidence: 99%

“…And those have many security limitations with high cost. In the researches for the IR signature modeling, Pan et al [9] and Lu and Wang [10] analyzed the IR radiance and surface temperature for helicopters and airplanes, respectively. And Dulski et al [11] modeled virtual backgrounds as IR signatures for atmospheric environments such as the sky and the clouds.…”

Section: Introductionmentioning

confidence: 99%

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IR Composite Image Generation by Wavelength Band Based on Temperature Synthesis Estimated from IR Target Signature and Background Scene

Bae

Kim²,

Ahn

2019

Journal of Sensors

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Infrared (IR) target signatures and background scenes are mainly used for military research purposes such as reconnaissance and detection of enemy targets in modern IR imaging systems like IR search and track (IRST) system. For understanding and analyzing IR signatures and backgrounds in the IR imaging systems, an IR wavelength band (WB) conversion which transforms an arbitrary WB image to another WB is very important in the absence of equipment by WB. In addition, IR image synthesis of targets and backgrounds can provide a great deal of information in the IR target detection field. However, the WB conversion is actually a very challenging research due to lack of information on the absorptivity and transmittance of enormous components of an object or atmosphere. In addition, the radiation and reflectance characteristics of short-wave IR (SWIR)-WB are very different from those of long-wave IR (LWIR)-WB and middle-wave IR (MWIR)-WB. Therefore, the WB conversion in this paper is limited only to IR target signatures and monotonous backgrounds, which is commonly used for military purposes, at a long distance. This paper proposes an IR synthesis method for generating a synthesized IR image of three IR-WBs by synthesizing an IR target signature and a real background scene for an arbitrary IR-WB. In the proposed method, each temperature information is first estimated from an IR target signature and IR background image for an arbitrary IR-WB, and then a synthesized temperature image is generated by combining the respective temperature information estimated from the IR target signature and background scene. Finally, the synthesized temperature image is transformed into an IR radiance image of three IR-WBs. Through the proposed method, various IR synthesis experiments are performed for various IR target signature and background scenes.

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“…Agboola et al [11] experimentally investigated nine different nozzle-mixing structure jets plume infrared radiation characteristics with infrared thermograph, considering that CO 2 is the main infrared radiation source of turbofan engine exhaust plumes. Pan et al [12,13] numerically simulated temperature field, flow field and infrared radiation signature of the helicopter exhaust plume. Steward et al [14] experimentally investigated midwave infrared muzzle flash spectra from unsuppressed and flashsuppressed 152 mm howitzer.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Infrared Radiation Characteristics of the Diesel Engine Exhaust Plume by Infrared Imaging

Xu¹,

Du²,

Shen³

et al. 2016

IJCA

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The variation ranges of species concentration, temperature and particle concentration of exhaust plume of the diesel engine with different load rate were tested in this article. Based on prototype experiment, the simulated generator and experimental platform of exhaust plume were built, and the effects of temperature, CO2, vapor and carbon soot on the infrared radiation characteristics of the exhaust plume were experimentally studied by infrared imaging. Experimental results showed that the temperature of the exhaust plume was the most important influencing factor for the infrared radiation characteristics, and the CO2 and carbon soot were also important influence factors too. However, the effects of the vapor could be neglected because of the slight influence on the infrared radiation characteristics of the exhaust plume.

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Modeling and Analysis of Helicopter Thermal and Infrared Radiation

Cited by 39 publications

References 7 publications

Small Aircraft Infrared Radiation Measurements Supporting the Engine Airframe Aero-thermal Integration

Small Aircraft Infrared Radiation Measurements Supporting the Engine Airframe Aero-thermal Integration

IR Composite Image Generation by Wavelength Band Based on Temperature Synthesis Estimated from IR Target Signature and Background Scene

Experimental Study on the Infrared Radiation Characteristics of the Diesel Engine Exhaust Plume by Infrared Imaging

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