Numerical Investigation on the Interaction of a Pair of Hot Off-Design Supersonic Jets With a Jet Blast Deflector

Bendersky, Leonid Aleksandrovich; Lyubimov, D. A.; Честных, Александра Олеговна

doi:10.1615/tsagiscij.2018026782

Cited by 2 publications

(1 citation statement)

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“…Wang et al [14] have conducted an experimental study on the exhaust flow field of a jet engine with CFD method, and the results show that the pressure and temperature of the jet center decreased gradually with the increase of the distance from the jet to the nozzle. Benderskiy et al [15], [16] using the RANS/ILES method, have simulated the jet flow of a double-cone supersonic aircraft, detected the influence of co-flow velocity and distance on temperature, pressure fluctuation and axial velocity in the jet hazard area, and studied the influence of natural wind speed on the jet hazard area. Yue et al [17], [18] based on CFD theory and using the standard k-erm equation and three-dimensional n-s equation, have conducted numerical simulation of the jet impact on the flight deck and deflector during the takeoff of the carrier aircraft, and obtained the temperature characteristic distribution on the axis.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Analysis of the Temperature Field of Jet Flow of Aircraft Based on CFD Theory

Chen

Cai

et al. 2020

IEEE Access

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As a key indicator of airport concrete pavement, the durability of concrete is seriously affected by the jet flow generated by aircraft engines. In order to clarify the temperature field distribution of aircraft jet flow acting on the pavement surface, this paper obtained the temperature field distribution of pavement surface under the action of three types of aircraft jet flow by combining field test experiment and CFD simulation. CFD simulation adopts the shear stress transfer model which is often used in engineering problem calculation, and the field test experiment adopts the method of embedding temperature sensor in precast concrete slab. The paired two sample t test was used to test the difference between the experimental results and the simulation results. The experimental results show that the pavement temperature increases first and then decreases with the distance from the engine, and reaches the maximum at the intersection point of the jet flow and the airport pavement. The simulation curve is in good agreement with the experimental results. When the level of confidence is 0.01, there is no significant difference between the simulation value and the experimental value, which verifies the accuracy and feasibility of the simulation calculation model. The simulation results of the three aircraft showed that when type C aircraft is in the state of full afterforce, the maximum pavement temperature is the highest which is 22m away from the nozzle, and can reach 533.81K. The current work provides a new method for measuring the temperature distribution of airfield pavement under the action of jet flow and a basis for the application of fiber concrete in airfield pavement.INDEX TERMS Jet flow, pavement, CFD, test experiment, temperature field distribution.

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Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Analysis of the Temperature Field of Jet Flow of Aircraft Based on CFD Theory

Chen

Cai

et al. 2020

IEEE Access

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Simulation and Experimental Analysis of the Temperature Field of Flow of Airport Snow Thrower Based on CFD Theory

Chen

Cai

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

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It is a hot issue for airport users and researchers to pay attention to the influence of the hot air flow generated by the hot blowing snow thrower on the durability and service life of the pavement. In order to clarify the influence of hot air flow generated by hot blowing snow throwers on the temperature distribution of airport runway, this paper studies the temperature distribution of airport runway under the action of hot air flow generated by hot blowing snow throwers by CFD simulation and design of field measurement experiments. The results show that the maximum temperature of the surface obtained by the simulation method is 554.21K, the limit temperature of the surface is 539.75K and the average temperature difference is 22.64K, which verifies the accuracy of the simulation model. In view of the research results, in order to promote the application of this type of snow thrower in the airport, it is necessary to verify whether the airport roadway can withstand the action of high temperature airflow of 539.75K.

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Numerical Investigation on the Interaction of a Pair of Hot Off-Design Supersonic Jets With a Jet Blast Deflector

Cited by 2 publications

References 0 publications

Simulation and Experimental Analysis of the Temperature Field of Jet Flow of Aircraft Based on CFD Theory

Simulation and Experimental Analysis of the Temperature Field of Jet Flow of Aircraft Based on CFD Theory

Simulation and Experimental Analysis of the Temperature Field of Flow of Airport Snow Thrower Based on CFD Theory

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