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Browsing by Author "Zhu, Jianqin"
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Diameter effect on the heat transfer of supercritical hydrocarbon fuel in horizontal tubes under turbulent conditions
Cheng, Zeyuan; Tao, Zhi; Zhu, Jianqin; Wu, Hongwei (2018-04-01)This article presented a numerical investigation of supercritical heat transfer of the hydrocarbon fuel in a series of horizontal tubes with different diameters. The Reynolds averaging equations of mass, momentum and energy ... -
Experimental and Analytical Study of Dual Compensation Chamber Loop Heat Pipe under acceleration force assisted condition
Han, Longzhu; Xie, Yongqi; Zhu, Jianqin; Wu, Hongwei; Zhang, Hongxing (2020-06-01)In this article, a combined experimental and theoretical study has been conducted to investigate the operating characteristics of a dual compensation chamber loop heat pipe (DCCLHP) with ammonia as the working fluid under ... -
Large eddy simulation of supercritical heat transfer to hydrocarbon fuel
Tao, Zhi; Cheng, Zeyuan; Zhu, Jianqin; Lin, Dasen; Wu, Hongwei (2018-06-30)In this article, a large eddy simulation (LES) method for the heat transfer of the hydrocarbon fuel flowing through the uniformly heated miniature round pipe at supercritical pressure has been formulated and validated. The ... -
Modeling of heat transfer for energy efficiency prediction of solar receivers
Zhu, Jianqin; Kai, Wang; Jiang, Zhaowu; Zhu, Binghan; Wu, Hongwei (2020-01-01)In this article, a new heat transfer model for solar receivers with metal foam is developed for design optimization. The proposed model facilitates analysis of heat transfer processes in terms of forced convection, natural ... -
Numerical and experimental investigations into protection net icing at the helicopter engine inlet
Tang, Jincheng; Xie, Yongqi; Zhu, Jianqin; Wang, Xianwei; Liu, Siyuan; Yu, Jianzu; Wu, Hongwei (2021-11-30)The ice shapes of the protection net at different times are firstly simulated by a 2D icing calculation, then the porous media parameters are calculated based on the 2D ice shapes. Afterwards, a three-dimensional (3D) flow ... -
Numerical investigation of pyrolysis effects on heat transfer characteristics and flow resistance of n-decane under supercritical pressure
Tao, Zhi; Hu, Xizhuo; Zhu, Jianqin; Wu, Hongwei (2018-06-01)Pyrolysis of hydrocarbon fuel plays an important role in the regenerative cooling process. In this article, a Two-Dimensional (2D) numerical model is proposed to investigate the pyrolysis effects on the heat transfer ... -
Prediction of the release process of the nitrogen-extinguishant binary mixture considering surface tension
Liu, Siyuan; Xie, Yongqi; Chen, Mengdong; Zhu, Jianqin; Day, Rodney; Wu, Hongwei; Yu, Jianzu (2020-07-21)Nitrogen used for pressurization in the extinguisher can be partially dissolved in the fire extinguishing agent. Consequently, the evolution of the dissolved nitrogen has a significant effect on the release behavior of the ...