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Analysis and correlation of fluid acceleration with vorticity and Liutex(Rortex)in swirling jets被引量：5
《Journal of Hydrodynamics》2019年第5期864-872,共9页Nan Gui Hou-bo Qi Liang Ge Peng-Xin Cheng Hao Wu Xing-tuan Yang Ji-yuan Tu Sheng-yao Jiang 
Project supported by the National Natural Science Foundations of China(Grant No.51576211);the Science Fund for Creative Research Groups of National Natural Science Foundation of China(Grant No.51621062);the National High Technology Research and Development Program of China(863 Program,Grant No.2014AA052701);the Foundation for the Author of National Excellent Doctoral Dissertation of China(FANEDD,Grant No.201438).
The characteristics of the acceleration a and its correlation with the vortex core in the swirling flow are analyzed in this paper.The swirling flows of four swirl numbers(Sn=n S 0,0.10,0.20 and 0.36)are simulated by ...
关键词：swirling flow ACCELERATION correlation VORTEX Rortex Liutex direct NUMERICAL simulation 
Comparative assessment and analysis of Rortex vortex in swirling jets被引量：5
《Journal of Hydrodynamics》2019年第3期495-503,共9页Nan Gui Liang Ge Peng-xin Cheng Xing-tuan Yang Ji-yuan Tu Sheng-yao Jiang 
National Natural Science Foundations of China(Grant No.51576211);the Science Fund for Creative Research Groups of National Natural Science Foundation of China(Grant No.51621062);the National High Technology Research and Development Program of China(863 Program,Grant No.2014AA052701);the Foundation for the Author of National Excellent Doctoral Dissertation of China(FANEDD,Grant No.201438).
Recently, a new definition, called Rortex, was proposed to quantify the purely rotational motion of fluids. In this work, based on the DNS data, the Rortex is used to assess and visualize the rotational motion and str...
关键词：Swirling flow VORTEX Rortex direct NUMERICAL simulation RIGID ROTATION non-rotational SHEAR 
Evaluation of wind vectors observed by HY-2A scatterometer using ocean buoy observations,ASCAT measurements,and numerical model data被引量：5
《Chinese Journal of Oceanology and Limnology》2015年第5期1191-1200,共10页李大伟 申辉 
Supported by the National High Technology Research and Development Program of China(863 Program)(No.2013AA09A505);the National Natural Science Foundation of China(No.40906091);the Open Project of School of Marine Sciences,Nanjing University of Information Science and Technology(No.KHYS1304)
The first Chinese microwave ocean environment satellite HY-2A was launched successfully in August, 201 I. This study presents a quality assessment of HY-2A scatterometer （HYSCAT） data based on comparison with ocean ...
关键词：HY-2A SCATTEROMETER wind fields EVALUATION 
Numerical modeling of the 2D time-domain transient electromagnetic secondary field of the line source of the current excitation被引量：4
《Applied Geophysics》2013年第2期134-144,235,共12页刘云 王绪本 王贇 
supported by the National High Technology Research and Development Program (863 Program)(2009AA06Z108)
To effectively minimize the electromagnetic field response in the total field solution, we propose a numerical modeling method for the two-dimensional （2D） time- domain transient electromagnetic secondary field of t...
关键词：Time-domain transient electromagnetics secondary field DuFort-Frankel finite-difference method numerical modeling. 
A 2D-numerical modeling of the generation and propagation of internal solitary waves in the Luzon Strait被引量：4
《Acta Oceanologica Sinica》2010年第6期1-11,共11页WANG Gang QIAO Fangli DAI Dejun 
the National Natural Science Foundation of China under contract Nos 41006018 and 40730842;the National High Technology Research and Development Program (863 Program) of China under contract No.2008AA09A402;Open Fund of the Key Laboratory of Ocean Circulation and Waves,CAS under contract No.KLOCAW0905;Basic Natural Research Found of the First Institute of Oceanography,SOA under contract No.GY02-2009G08
The wide presence of internal solitary waves （ISWs） in the northern South China Sea （SCS） has been confirmed by both Synthetic Aperture Radar （SAR） images and in situ observations.These ISWs are believed being g...
关键词：internal solitary waves Luzon Strait Synthetic Aperture Radar 
Numerical and Experimental Investigation of High-efficiency Axial-flow Pump被引量：50
《Chinese Journal of Mechanical Engineering》2010年第1期38-44,共7页SHI Weidong ZHANGDesheng GUAN Xingfan LENG Hongfei 
supported by National Hi-tech Research and Development Program of China (863 Program, Grant No. 2007AA05Z207);National Science and Technology Support Scheme of China (Grant No. 2008BAF34B10);Jiangsu Provincial Graduate Student Innovation Foundation of China (Grant No. CX08B_064Z)
The experimental investigation of axial-flow pump has been rapidly developed to meet the needs of South-to-North Water Diversion Project of China. Owing to the boundary conditions of hub, blade tip clearance, much of ...
关键词：axial-flow pump flow field multi-conditions high efficiency PROBE hub leakage 
Numerical simulation and analysis of mould filling process in lost foam casting被引量：1
《China Foundry》2008年第3期175-178,共4页Jiang Junxia Wu Zhichao Chen Liliang Hao Jing 
The National High Technology Research and Development Program of China(863Program)(2006AA04Z140);The National Natural Science Foundation of China(NSFC)(50605024)
In lost foam casting(LFC)the foam pattern is the key criterion,and the filling process is crucialto ensure the high quality of the foam pattern.Filling which lacks uniformity and denseness will cause variousdefects an...
关键词：lost foam casting numerical simulation filling process DEFECT gas-solid two-phase flow 
Numerical Treatments and Applications of the 3D Transient Green Function被引量：10
《China Ocean Engineering》2007年第4期637-646,共10页朱仁传 朱海荣 申亮 缪国平 刘应中 
This work was financially supported by Key Program of the National Natural Science Foundation of China(No.50639020);the National High Technology Research and Development Program of China(863Program)(No.2006AA09Z332)
How to evaluate time-domain Green function and its gradients efficiently is the key problem to analyze ship hydrodynamics in time domain. Based on the Bessel function, an Ordinary Differential Equation （ODE） was der...
关键词：transient Green function series expansion asymptotic expression ordinary differential equation hydrodynamis 
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