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Wenrui Hu
Chinese Academy of Sciences
46Publications
9H-index
271Citations
Publications 46
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#1Qi KangH-Index: 7
#2Di WuH-Index: 2
Last.Wenrui HuH-Index: 9
view all 7 authors...
The experimental study on thermocapillary convection in liquid bridges of large Prandtl number has been carried out on Tiangong-2 in space. The purpose of these experiments is to study the oscillation instability of thermocapillary convection, and to discover and recognize the mechanism of destabilization of thermocapillary convection in the microgravity environment in space. In this paper, the geometry of a half-floating-zone liquid bridge is featured by the aspect ratio Ar and volume ratio Vr,...
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#1Shoutu Li (Lanzhou University of Technology)H-Index: 1
#2Ye Li (SJTU: Shanghai Jiao Tong University)H-Index: 15
Last.Wenrui Hu (CAS: Chinese Academy of Sciences)H-Index: 9
view all 8 authors...
Vertical-axis wind turbines (VAWTs) have been widely used in urban environments, which contain dust and experience strong turbulence. However, airfoils for VAWTs in urban environments have received considerably less research attention than those for horizontal-axis wind turbines (HAWTs). In this study, the sensitivity of a new VAWT airfoil developed at the Lanzhou University of Technology (LUT) to roughness was investigated via a wind tunnel experiment. The results show that the LUT airfoil is l...
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#1Deshun Li (Lanzhou University of Technology)H-Index: 3
#2Tao Guo (Lanzhou University of Technology)H-Index: 1
Last.Wenrui Hu (CAS: Chinese Academy of Sciences)H-Index: 9
view all 7 authors...
Determination of the aerodynamic configuration of wake is the key to analysis and evaluation of the rotor aerodynamic characteristics of a horizontal-axis wind turbine. According to the aerodynamic configuration, the real magnitude and direction of the on-flow velocity at the rotor blade can be determined, and subsequently, the aerodynamic force on the rotor can be determined. The commonly employed wake aerodynamic models are of the cylindrical form instead of the actual expanding one. This is b...
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#1Qi KangH-Index: 7
#2Jia WangH-Index: 2
Last.Wenrui HuH-Index: 9
view all 7 authors...
Thermocapillary convection has always been one of the most important research topics in microgravity fluid physics. A space experimental study on the thermocapillary convection in an open annular liquid pool - a typical thermocapillary flow system - has been conducted on the SJ-10 satellite of China. This space experiment has observed the spatial temperature distribution of the liquid free surface using an infrared thermal imager, obtained the flow pattern transition process, analysed the oscill...
2 CitationsSource
#1Qi Kang (CAS: Chinese Academy of Sciences)H-Index: 7
#2Huan Jiang (CAS: Chinese Academy of Sciences)H-Index: 3
Last.Wenrui Hu (CAS: Chinese Academy of Sciences)H-Index: 9
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Abstract This paper is an investigation on oscillation characteristics and transition routes of thermocapillary convection in an annular liquid pool in the space experiment carried out on SJ-10 recoverable scientific experiment satellite. Thermocapillary convection caused by non-uniformity of surface tension and the instability problem of the convection are introduced, and the measurement by thermocouples has been analyzed in detail. Through the relationship between the critical condition of sta...
3 CitationsSource
#1Deshun LiH-Index: 3
#2Tao GuoH-Index: 1
Last.Wenrui HuH-Index: 9
view all 8 authors...
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#1Li DuanH-Index: 7
#2Qi KangH-Index: 7
Last.Wenrui HuH-Index: 9
view all 9 authors...
Thermocapillary convection is an important content in the study of microgravity fluid physics. It is not only the problem of fluid physics mechanism such as convection stability, but also closely related to spacecraft flow control, efficient heat transfer, etc., and has direct guiding significance for material growth processes such as floating zone method and Czochralski method. This chapter mainly introduces the research status of thermocapillary convection about an annular liquid pool, the sci...
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#1Ji-Cheng Li (CAS: Chinese Academy of Sciences)H-Index: 1
#2Hai Lin (CAS: Chinese Academy of Sciences)H-Index: 3
Last.Wenrui Hu (CAS: Chinese Academy of Sciences)H-Index: 9
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The oscillation of liquid/gas free surface in a partially filled storage tank caused by an abrupt drop of gravity level is of critical importance for the fluids management in space. In present study we investigate the dynamic behavior of free surface in tank models (tubes) using water as the working medium utilizing the Drop Tower Beijing, which can provide a 3.6s short-term microgravity condition. Meanwhile, the corresponding numerical simulation using volume of fluids (VOF) methods was carried...
3 CitationsSource
#1Zhi Zheng (Lanzhou University of Technology)H-Index: 2
#2ZhiTeng Gao (Lanzhou University of Technology)H-Index: 1
Last.Wenrui Hu (CAS: Chinese Academy of Sciences)H-Index: 9
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To analyze the interaction between wind turbines and the atmospheric boundary layer, we integrated a large-eddy simulation with an actuator line model and examined the characteristics of wind-turbine loads and wakes with reference to a corresponding experiment in Gansu. In the simulation, we set the wind turbine to have a rotor diameter of 14.8 m and a tower height of 15.4 m in the center of an atmospheric boundary layer with a 10.6° yaw angle. The results reveal an obviously skewed wake structu...
3 CitationsSource
#1Deshun Li (Lanzhou University of Technology)H-Index: 3
#2Tao Guo (Lanzhou University of Technology)H-Index: 1
Last.Rennian Li (Lanzhou University of Technology)H-Index: 2
view all 9 authors...
Experiments and numerical simulations of the wake field behind a horizontal-axis wind turbine are carried out to investigate the interaction between the atmospheric boundary layer and a stand-alone wind turbine. The tested wind turbine (33 kW) has a rotor diameter of 14.8 m and hub height of 15.4 m. An anti-icing digital Sonic wind meter, an atmospheric pressure sensor, and a temperature and humidity sensor are installed in the upstream wind measurement mast. Wake velocity is measured by three U...
3 CitationsSource
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