Computational Study on the Aerodynamics of a Surface-Heated Wing for Thermal Management

Kallath, Hariharan; Kholi, Foster Kwame; Ha, Man Yeong; Min, June Kee; Chetwynd-Chatwin, Jason

doi:10.2514/1.j059220

Cited by 8 publications

(8 citation statements)

References 27 publications

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“…e measurement principle of the charge transfer method is that when the probe is impacted by particles, friction, or charge induction, a certain static charge will be generated, and the amount of charge is proportional to the number of particles. By detecting the electrostatic signal and measuring the airflow velocity, it is converted to the measurement of concentration [9]. When using this method, the system is relatively simple and can be used for the continuous online monitoring.…”

Section: Charge Transfer Methodmentioning

confidence: 99%

Detection of Particle Concentration and Particle Size Based on Aerodynamic Particle Size Spectrometer

Zhang

Hou

2022

Advances in Multimedia

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In order to solve the problem of the continuous online monitoring of the fixed pollution source emission particles, on the basis of the advantages and disadvantages of the comprehensive analysis of the extinction method, the β-ray absorption method, the micro-oscillating balance method, the charge transfer method, and the light scattering method, the particle size distribution and concentration optical detection system based on aerodynamic particle size spectrometer is designed according to the Mie light scattering principle. A high-performance aerodynamic particle size spectrometer is designed using a single-wavelength method to measure the concentration of particulate matter, and the equipment and the detection system are used in the continuous monitoring of particulate matter emitted by thermal power plants and compared with the ES632 equipment. Through the system test, the results show that compared with the ES632 equipment performance, the lowest concentration measured by the design of aerodynamic particle size spectrometer equipment can reach 0.1 mg/m3 with a measurement accuracy of 0.01 mg/m3. Compared with the ES632 equipment, the measurement concentration value is 8% higher, which meets the test requirements.

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Section: Charge Transfer Methodmentioning

confidence: 99%

Detection of Particle Concentration and Particle Size Based on Aerodynamic Particle Size Spectrometer

Zhang

Hou

2022

Advances in Multimedia

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“…Nevertheless, the heated boundary layer may also have positive effects on the drag. For example, Kallath et al [117] have shown that heating a wing (i.e. to expel waste heat from the aircraft systems) can provide for improved aerodynamics.…”

Section: Surface/skin Heat Exchangersmentioning

confidence: 99%

Aircraft thermal management: Practices, technology, system architectures, future challenges, and opportunities

Heerden

Judt

Jafari

et al. 2022

Progress in Aerospace Sciences

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“…Kallath, H. et al proposed a wing heat dissipation method and explored the feasibility of a heat exchanger setup in the wing based on the aerodynamic theory perspective. The experimental results showed that under low heat flow density, low Reynolds coefficient, and low angle of approach, the heating of the wing surface increases the lift coefficient and reduces the drag coefficient at the same time [13]. Shimoyama, K. et al developed an airfoil heat exchanger for a highendurance uncrewed aircraft and optimized the airfoil structure to achieve a balance between aerodynamic performance and thermal exhaust performance, achieving enhanced thermal exhaust performance while ensuring aerodynamic performance [14].…”

Section: Introductionmentioning

confidence: 99%

Heat transfer and flow characterisation of aircraft heat exchangers considering manufacturing constraints

Lei,

Wan,

2024

Applied Mathematics and Nonlinear Sciences

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With the progress and development of the times, the traditional aircraft power system and difficult to meet the needs of the current aviation development, for the aircraft power and heat exchanger research has been more and more extensive attention. This study takes the heat exchanger of the aircraft loop control system as an example, constructs the thermal management system of the aircraft according to the mechanism of its heat transfer and flow characteristics, and optimizes it under the consideration of manufacturing constraints. Based on the theory of fluid mechanics, the aircraft heat exchanger is simulated, and control equations based on heat transfer and flow characteristics are established. In this paper, the temperature difference of the heat exchanger is increased by 6.5°C and 5.4°C, respectively, and the heat transfer coefficient is between 11 and 14 kW/m²k. Furthermore, the fluid temperature has risen from 0.05 to 0.5 to 0.30 to 0.87 with the increase in flow rate. The maximum deviation values were 8.3%, 6.7%, and 8.6%, respectively, and the confidence intervals were all above 90%. This study can effectively improve the efficiency of aircraft heat exchangers compared to traditional heat exchangers and has more advantages in heat transfer performance, which provides a reference value for the development of the aviation field.

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Computational Study on the Aerodynamics of a Surface-Heated Wing for Thermal Management

Cited by 8 publications

References 27 publications

Detection of Particle Concentration and Particle Size Based on Aerodynamic Particle Size Spectrometer

Detection of Particle Concentration and Particle Size Based on Aerodynamic Particle Size Spectrometer

Aircraft thermal management: Practices, technology, system architectures, future challenges, and opportunities

Heat transfer and flow characterisation of aircraft heat exchangers considering manufacturing constraints

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