全部文献期刊会议图书|学者科研项目
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作者:Yongchan Kim , Tae-Seong Roh , Hwanil Huh ...
来源:[J].Aerospace Science and Technology(IF 0.873), 2020, Vol.98
摘要:Abstract(#br)Parametric investigations of drag reduction by counter-flow jet in supersonic flow have been conducted through numerical simulations. An axisymmetric RANS equation was solved to analyze the drag reduction effect of each parameter. This study revealed a general tenden...
作者:Xiaojie Zhao , Zhi Zong , Yichen Jiang ...
来源:[J].Applied Ocean Research(IF 1.072), 2020, Vol.94
摘要:Abstract(#br)In order to investigate the mechanism of air-injection drag reduction, two different CFD models in OpenFOAM including the Eulerian-Eulerian two-fluid model and VOF model have been applied to study the there-dimensional drag reduction of an axisymmetric body by air in...
作者:Mohammad Hossein Montazeri , Mohammad Mehdi Alishahi
来源:[J].Ocean Engineering(IF 1.161), 2020, Vol.196
摘要:Abstract(#br)Among different methods of drag reduction, Air Layer Drag Reduction (ALDR) has been shown to be promising, at least in laboratories. Although a few examples of its practical application is available, important questions regarding the physics of ALDR and consequently ...
作者:Shengjun Ju , Zhenxu Sun , Guowei Yang ...
来源:[J].Acta Astronautica(IF 0.701), 2020
摘要:Abstract(#br)The drag reduction characteristics play an important role in the supersonic vehicle design phase. According to two drag reduction schemes, the opposing jet and the upstream energy deposition have aroused the widespread interest of researchers. In the current study...
作者:Chen Zhang , Koirala Saurav Bijay
来源:[J].Aerospace Science and Technology(IF 0.873), 2018, Vol.72, pp.380-396
摘要:Abstract(#br)In order to explore the drag reduction performance, an experimental and computational research effort for aero engine blade with micro-texture is undertaken. An optimized drag reduction model on blade with micro-textures is established for this effort in this paper. ...
作者:Yi Jin , Zhongyu Cheng , Xingsi Han ...
来源:[J].Ocean Engineering(IF 1.161), 2019, Vol.190
摘要:... It also has been used for the drag reduction research of flow past a bluff body. The present study performs Very-Large Eddy Simulation (VLES) of passive drag reduction for a square cylinder based on the open-source CFD (Computational Fluid Dynamics) toolbox, OpenFOAM. The new...
作者:Dongjie Liu , Qinghui Wang , Jinjia Wei
来源:[J].Chemical Engineering Research and Design(IF 1.927), 2018, Vol.132, pp.460-469
摘要:Abstract(#br)In this work, the mixed aqueous solutions of cationic surfactant – cetyltrimethyl ammonium chloride and non-ionic molecular polymer – polyacrylamide were tested to verify the speculation about their intensification possibilities of drag reduction performance. S...
作者:Lei Tang , Zhixiang Zeng , Gang Wang ...
来源:[J].Surface & Coatings Technology(IF 1.941), 2017, Vol.317, pp.54-63
摘要:... The drag reduction effect of the films is investigated through experiment of falling-ball method and FEM simulation. The larger PEG2000 content, the bigger size and the more regular and homogeneous of the pores. The joint action of anatase crystal, hydroxyl groups and wate...
作者:Qing Quan , Shouxi Wang , Li Wang ...
来源:[J].Journal of Petroleum Science and Engineering(IF 0.997), 2019, Vol.178, pp.852-856
摘要:Abstract(#br)Three types of relatively high-molecular polymer were used to investigate drag reduction in single-phase flow through a horizontal, 12.7-mm pipe. Diesel oil and a mixture of diesel oil and model oil were employed as the oil phase. The effect of various factors on...
作者:Hossein Moayedi , Babak Aghel , Behzad Vaferi ...
来源:[J].Journal of Petroleum Science and Engineering(IF 0.997), 2020, Vol.185
摘要:Abstract(#br)Adding small amounts of drag-reducing agents (DRA) to the crude oil can effectively reduce energy losses and its associated pressure drop in transportation pipelines. They do their roles by reducing the turbulent friction factor of the flowing liquids in the pipeline...

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