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Browsing by Author "Wu, Hongwei"
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Lagrangian Approach for Simulating Supercooled Large Droplets’ Impingement Effect
Wang, C; Chang, S; Wu, Hongwei (2015-03-01)In this paper, a droplet tracking method and a splashing model have been developed to calculate the droplet collection efficiency in a supercooled-large-droplets regime using the Lagrangian computational method. In the ... -
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 ... -
Leakage Performance of Floating Ring Seal in Cold/Hot State for Aero-engine
Li, Guoqing; Zhang, Qian; Huang, Enliang; Lei, Zhijun; Wu, Hongwei; Xu, Gang (2019-09-01)Rotating experimental investigations were carried out to study the oil sealing capability of two different floating ring seals in cold/hot state for aero-engine. High-speed floating ring seal (HFRS) is a seal with the inner ... -
Local Heat Transfer Measurements on a Rotating Flat Blade Model with a Single Film Hole
Xu, G; Yang, B; Tao, Z; Zhao, Z; Wu, Hongwei (2009-05-10)An experimental study was performed to measure the heat transfer coefficient distributions on a flat blade model under rotating operating conditions. A steady-state thermochromic liquid crystal technique was employed to ... -
Modeling of Drop Breakup in the Bag Breakup Regime
Wang, C; Chang, S; Wu, Hongwei; Xu, J (2014-04-30)Several analytic models for predicting the drop deformation and breakup have been developed over the last three decades, but modeling drop breakup in the bag-type regime is less reported. In this Letter, a breakup model ... -
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 ... -
Modeling Solubility of Nitrogen in Clean Fire Extinguishing Agent by Peng-Robinson Equation of State and a Correlation of Henry’s Law Constants
Chen, M; Xie, Y; Wu, Hongwei; Shang, S; Yu, J (2017-01-05)Nitrogen is usually used to increase the total pressure of the fluid in aircraft fire suppression bottle. The amount of nitrogen required in the bottle is a significant factor to assure complete and effective discharge ... -
Moisture evolution, thermal properties and energy consumption of drying spent grain pellets from a blend of some cereals for small scale bio-energy utilization: Modelling and Experimental study
Ndukwu, M; Horsfall, I; Lamrani, B; Wu, Hongwei; Bennamoun, L (2022-05-27)A fixed bed convective dryer was used to assess the influence of drying temperature and geometry deformation on moisture and thermo-physical property evolution of solid fraction pellets (spent grain) from wet milling of ... -
New medium-low temperature hydrothermal geothermal district heating system based on distributed electric compression heat pumps and a centralized absorption heat transformer
Sun, Fangtian; Hao, Baoru; Fu, Lin; Wu, Hongwei; Xie, Yonghua; Wu, Haifeng (2021-10-01)Development of geothermal heat for district heating has attracted considerable attention in China. However, transporting geothermal heat for long distance has become the bottleneck for developing large-scale medium-low ... -
Non-steady experimental investigation on an integrated thermal management system for power battery with phase change materials
Shi, S; Xie, Y; Li, M; Yuan, Y; Yu, Y; Wu, Hongwei; Liu, B; Liu, N (2017-04-15)A large amount of heat inside the power battery must be dissipated to maintain the temperature in a safe range for the hybrid power train during high-current charging/discharging processes. In this article, a combined ... -
A novel hybrid energy system combined with solar-road and soil-regenerator: Dynamic model and operational performance
Xiang, Bo; Cao, Xiaoling; Yuan, Yanping; Sun, Liangliang; Wu, Hongwei; Haghighat, Fariborz (2018-01-15)Solar roads are emergent and huge energy source in traffic domains. To improve the energy utilization efficiency of a solar road, a novel solar-road and soil-regenerator hybrid energy system in combination with conventional ... -
Numerical analysis of the axial heat conduction with variable fluid properties in a forced laminar flow tube
Zhai, Lijing; Xu, Guoqiang; Quan, Yongkai; Song, Gu; Dong, Bensi; Wu, Hongwei (2017-11-30)In this article, a theoretical model is developed to investigate the effects of the axial heat conduction on the laminar forced convection in a circular tube with uniform internal heat generation in the solid wall. In the ... -
Numerical and Experimental Investigation on Single-Point Thermal Contact Resistance
Wang, Anliang; Liu, Zhenyu; Wu, Hongwei; Lewis, Andrew; Loulou, Tahar (Springer Nature, 2021-06-02)In the engineering applications, the thermal contact resistance has an important effect of heat transfer design and operation of systems and devices. For general contact heat transfer, as long as the geometry, mechanics ... -
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 ... -
Numerical Simulation of Sub-cooled Boiling Flow with Fouling Deposited inside Channels
Liu, X; Zhang, X; Lu, T; Mahkamov, K; Wu, Hongwei; Mirzaeian, M (2016-06-25)In this article, a numerical simulation has been performed to investigate the sub-cooled boiling flow in axisymmetric channels using the two-phase particle model. The equivalent diameter of the channel is 4.38 mm with 365.7 ... -
Numerical simulation-based pinhole leakage characteristics and hazard boundaries of buried natural gas risers
Liu, Chenglong; An, Jinyu; Xie, Chunxia; Wu, Hongwei; Zhang, Zujing (2024-04)Corrosion, ageing, and other failure factors pose safety hazards to underground natural gas pipelines. In actual rescue operations, in addition to paying attention to leakage accidents in horizontal pipelines, the severity ... -
Numerical study on the heat transfer performance of mine ice-storage cooling device
Guo, Weishuang; Zhang, Zujing; Liang, Xing; Wu, Hongwei; Ge, Liang; Mao, Ruiyong (2024-05-15)The thermal performance of the ice-storage cooling device used in the underground mine refuge chamber is poor, which causes a waste of energy. Therefore, it is necessary to improve the heat transfer performance of ice ... -
Optimization of airflow organization in fan-wall data center via baffles
Wu, Li; Mao, Ruiyong; Wu, Hongwei; Zhang, Jun; Li, Chao; Yi, Xiaoyan; Huang, Guoquan; Zhang, Zujing (2024-02-16)The utilization of natural fresh air for cooling server rooms in fan-wall data centers effectively reduces the operational duration of air conditioning, resulting in enhanced energy efficiency. Nonetheless, there are few ... -
Overview of Recent Trends in Microchannels for Heat Transfer and Thermal Management Applications
Harris, Mohammad; Wu, Hongwei; Zhang, Wenbin; Angelopoulou, Anastassia (2022-11-30)Distinctive recent research and experimental trends in microchannels for heat transfer and thermal management applications are investigated via a novel framework. The qualitative literature analysis was performed from four ...