NUMERICAL COMPUTATION OF THE DIFFUSION OF THE CONTAMINANTS AND THE FLOW FIELD OF SKEW DISCHARGES INTO A CHANNEL

ＮＵＭＥＲＩＣＡＬ　ＣＯＭＰＵＴＡＴＩＯＮ　ＯＦ　ＴＨＥ　ＤＩＦＦＵＳＩＯＮ　ＯＦ　ＴＨＥ　ＣＯＮＴＡＭＩＮＡＮＴＳ　ＡＮＤ　ＴＨＥ　ＦＬＯＷ　ＦＩＥＬＤ　ＯＦ　ＳＫＥＷ　ＤＩＳＣＨＡＲＧＥＳ　ＩＮＴＯ　Ａ　ＣＨＡＮＮＥＬＮＵＭＥＲＩＣＡＬＣＯＭＰＵ...     

THE APPLICATION OF THE AVERAGING FINITE DIFFERENCE SCHEME IN THE SIMULATION OF SEPARATED FLOW

ＴＨＥ　ＡＰＰＬＩＣＡＴＩＯＮ　ＯＦ　ＴＨＥ　ＡＶＥＲＡＧＩＮＧ　ＦＩＮＩＴＥ　ＤＩＦＦＥＲＥＮＣＥ　ＳＣＨＥＭＥ　ＩＮ　ＴＨＥ　ＳＩＭＵＬＡＴＩＯＮ　ＯＦ　ＳＥＰＡＲＡＴＥＤ　ＦＬＯＷＴＨＥＡＰＰＬＩＣＡＴＩＯＮＯＦＴＨＥＡＶＥＲＡＧＩＮＧＦＩＮＩ...     

A NEW METHOD FOR SOLVING TURBULENT VELOCITY CORRELATION FUNCTIONS AND ITS APPLICATION TO THE CHANNEL FLOW

ＡＮＥＷＭＥＴＨＯＤＦＯＲＳＯＬＶＩＮＧＴＵＲＢＵＬＥＮＴＶＥＬＯＣＩＴＹＣＯＲＲＥＬＡＴＩＯＮＦＵＮＣＴＩＯＮＳＡＮＤＩＴＳＡＰＰＬＩＣＡＴＩＯＮＴＯＴＨＥＣＨＡＮＮＥＬＦＬＯＷＬｉｎＪｉａｎ－ｚｈｏｎｇ；ＷａｎｇＹｕ－ｚｈｉ（Ｄｅｐａｒｔｍｅｎｔ...     

NUMERICAL SIMULATION OF THE TURBULENT FLUID FLOW AND PREDICTION OF INCIPIENT CAVITATION NUMBER ON ISOLATED SURFACE TRIANGULAR PROTRUSION

ＮＵＭＥＲＩＣＡＬＳＩＭＵＬＡＴＩＯＮＯＦＴＨＥＴＵＲＢＵＬＥＮＴＦＬＵＩＤＦＬＯＷＡＮＤＰＲＥＤＩＣＴＩＯＮＯＦＩＮＣＩＰＩＥＮＴＣＡＶＩＴＡＴＩＯＮＮＵＭＢＥＲＯＮＩＳＯＬＡＴＥＤＳＵＲＦＡＣＥＴＲＩＡＮＧＵＬＡＲＰＲＯＴＲＵＳＩＯＮ￥ＲｅｎＢｉ...     

THE ANALYSIS OF THE TREE－DIMENSIONAL ELASTOHYDRODYNAMIC LUBRICATIONFOR HEAVILY－LOADED FINITE JOURNAL BEARINGS IN NON－NEWTONIAN LUBRICANTS

ＴＨＥ　ＡＮＡＬＹＳＩＳ　ＯＦ　ＴＨＥ　ＴＲＥＥ－ＤＩＭＥＮＳＩＯＮＡＬ　ＥＬＡＳＴＯＨＹＤＲＯＤＹＮＡＭＩＣ　ＬＵＢＲＩＣＡＴＩＯＮＦＯＲ　ＨＥＡＶＩＬＹ－ＬＯＡＤＥＤ　ＦＩＮＩＴＥ　ＪＯＵＲＮＡＬ　ＢＥＡＲＩＮＧＳ　ＩＮ　ＮＯＮ－ＮＥＷＴＯＮＩＡ...     

THE RESEARCH OF NATURAL THREE－DIMENSIONAL NUMERICAL MODEL FOR WATER－SEDIMENT TWO－PHASE FLOW AND SEDIMENT MOVING REGULARITY NEAR THE RIVER BOUNDARY

ＴＨＥ　ＲＥＳＥＡＲＣＨ　ＯＦ　ＮＡＴＵＲＡＬ　ＴＨＲＥＥ－ＤＩＭＥＮＳＩＯＮＡＬ　ＮＵＭＥＲＩＣＡＬ　ＭＯＤＥＬ　ＦＯＲ　ＷＡＴＥＲ－ＳＥＤＩＭＥＮＴ　ＴＷＯ－ＰＨＡＳＥ　ＦＬＯＷ　ＡＮＤ　ＳＥＤＩＭＥＮＴ　ＭＯＶＩＮＧ　ＲＥＧＵＬＡＲＩＴＹ　ＮＥ...     

A SEPARATED－LAYER FINITE ANALYTIC METHOD FOR NUMERICAL SIMULATION OF A THREE－DIMENSIONAL VISCOUS FLOW FIELD AROUND A SHIP STERN

ＡＳＥＰＡＲＡＴＥＤ－ＬＡＹＥＲＦＩＮＩＴＥＡＮＡＬＹＴＩＣＭＥＴＨＯＤＦＯＲＮＵＭＥＲＩＣＡＬＳＩＭＵＬＡＴＩＯＮＯＦＡＴＨＲＥＥ－ＤＩＭＥＮＳＩＯＮＡＬＶＩＳＣＯＵＳＦＬＯＷＦＩＥＬＤＡＲＯＵＮＤＡＳＨＩＰＳＴＥＲＮＬｉＴｉｎｇ－ｑｉｕ；Ｍｉａｏ...     

STOCHASTIC LAYER OF DUFFING''''S EQUATION NEAR ITS SUBHARMONIC RESONANT ORBIT

ＳＴＯＣＨＡＳＴＩＣ　ＬＡＹＥＲ　ＯＦ　ＤＵＦＦＩＮＧ＇Ｓ　ＥＱＵＡＴＩＯＮ　ＮＥＡＲ　ＩＴＳ　ＳＵＢＨＡＲＭＯＮＩＣ　ＲＥＳＯＮＡＮＴ　ＯＲＢＩＴＳＴＯＣＨＡＳＴＩＣＬＡＹＥＲＯＦＤＵＦＦＩＮＧ＇ＳＥＱＵＡＴＩＯＮＮＥＡＲＩＴＳＳＵＢＨＡＲＭＯＮＩ...     

APPLICATION OF MILES－HOWARD THEOREM TO STUDY THE INSTABILITY OF ATMOSPHERIC GRAVITY WAVES ON A HETEROGENEOUS ORTHOGONAL SHEAR FLOW

ＡＰＰＬＩＣＡＴＩＯＮ　ＯＦ　ＭＩＬＥＳ－ＨＯＷＡＲＤ　ＴＨＥＯＲＥＭ　ＴＯ　ＳＴＵＤＹ　ＴＨＥ　ＩＮＳＴＡＢＩＬＩＴＹ　ＯＦ　ＡＴＭＯＳＰＨＥＲＩＣ　ＧＲＡＶＩＴＹ　ＷＡＶＥＳ　ＯＮ　Ａ　ＨＥＴＥＲＯＧＥＮＥＯＵＳ　ＯＲＴＨＯＧＯＮＡＬ　ＳＨＥＡＲ...     

A FINITE ELEMENT AND BOUNDARY ELEMENT METHOD OF NUMERICAL SIMULATION OF TWO DIMENSIONAL AND TWO PHASE FLOW

ＡＦＩＮＩＴＥＥＬＥＭＥＮＴＡＮＤＢＯＵＮＤＡＲＹＥＬＥＭＥＮＴＭＥＴＨＯＤＯＦＮＵＭＥＲＩＣＡＬＳＩＭＵＬＡＴＩＯＮＯＦＴＷＯＤＩＭＥＮＳＩＯＮＡＬＡＮＤＴＷＯＰＨＡＳＥＦＬＯＷＦａｎＪｉａｎｇ；ＱｕＤｅ－ｂｉｎ；ＺｈａｎｇＺｉ－ｘｉａｎｇ（Ｑｉｎ...     

硬盘驱动器头盘界面时域问题的有限元隐式算法

本文提出了一种有限元隐式算法,用于求解磁头浮动块在盘面上飞行的时域问题。计算表明,该方法具有稳定性好,可采用的时间步长大,计算量小,精度高等特点,计算结果与前人计算及实验结果相吻合     

THE SIMULATION OF THE SAR IMAGE OF INTERNAL SOLITARY WAVES IN ALBORAN SEA

1 .　ＩＮＴＲＯＤＵＣＴＩＯＮＯｃｅａｎｉｎｔｅｒｎａｌｗａｖｅｉｓａｋｉｎｄｏｆｇｒａｖｉｔｙｗａｖｅｇｅｎｅｒａｔｅｄｉｎｔｈｅｓｔｒａｔｉｆｉｅｄｏｃｅａｎ .Ｉｔｐｒｏｄｕｃｅｂｙｔｈｅｉｎｔｅｒａｃｔｉｏｎｏｆｔｉｄｅｃｕｒｒｅｎｔａｎｄｔｏｐｏｇｒａｐｈｙ ,ｓｅａｑｕａｋｅａｎｄｍｏｖｉｎｇｓｈｉｐｗｈｅｎｔｈｅｓｔｒｏｎｇ ,ｓｈａｌｌｏｗｐｙｃｎｏｃｌｉｎｅｉｓ ｐｒｅｓｅｎｔ.Ｔｈｅｉｎｔｅｒｎａｌｗａｖｅｓｉｎｔｈｅｃｏｎｔｉｎｅｎｔａｌｓｈｅｌｆａｒｅａｌｍｏｓｔｔｉｄｅｐｒｏｄ…     

THE BUBMAC METHOD-A NUMERICAL METHOD BUBBLE DYNAMICS IN VORTEX CORE

This paper presents a numerical method called BUBMAC method,whichis based on the Marker And Cell(MAC) technique,to numerically simulate the problemof bubble dynamics in vortex core. With the incorporation of the azimuthal velocity intothe momentum equation, the model takes into account the complete interaction betweenthe bubble dynamics and the vortex flow field.The three momentum equations (N-Seqs.) are solved numerically by the finite-difference methed, and the motion of bubblesurface is described by tracing massless marker particles distributed only on the surface ofthe bubble. With some important medifications to the original MAC method, the numeri-cal accuracy of the method is conisderably increased. The validation of the proposed BUB-MAC method is checked by comparing the numerical results with some available analyticalsolutions in the cases of spherical bubble evolution and with numerical results in the casesof nonspherical collapse of bubble and bubble evolution in tip-vortex core. The compar-iso     

Field Application of the Multilinear Muskingum Discharge Routing Method

To implicitly model the nonlinear dynamics of flood wave propagation in rivers with floodplains, a multilinear discharge-hydrograph routing method based on time distribution scheme is proposed. The framework of this method is based on the variable parameter Muskingum-type routing method, which is used as the linear sub-model. The applicability limit and suitability of this flood routing method is verified using numerical experiments and field data, respectively.     

THE HYDRODYNAMIC CHARACTERISTICS OF FREE VARIABLEPITCH VERTICAL AXIS TIDAL TURBINE

The hydrodynamic characteristics of free variable-pitch vertical axis tidal turbine are investigated by combining experime-ntal and numerical simulations.The variations of hydrodynamics are obtained based on testing the kinematics and the dynamics of the turbine under different flow and structural conditions.Through analyzing the movement of the turbine and the characteristics of the flow field by numerical simulations,it is shown how the turbine’s performance is improved.     

A NEW APPROACH TO THE NUMERICAL SIMULATION OF MASS TRANSPORT

A refined numerical method, based upon time-line interpolation, for the simulation of advection and diffusion has been tentatively explored. A complete set of temporal reachback numerical scheme in applying the method of characteristics has been derived, and the favorable accuracy of the method demonstrated. The use of interpolations in time, rather than the more widely used interpolations in space, demonstrates that it generates a much smaller numerical error.     

THE MACCORMACK SCHEME AND THE BOUNDARY-FITTED COORDINATE SYSTEM FOR NUMERICAL SIMULATION OF SUPER CRITICAL FREE SURFACE FLOWS

1. INTRODUCTIONOpen channels carrying supercritical flows are commonly used in hydraulic engineering. Man-made structures such as spillway chutes, conveyance channels, sewer systems, and outlet works are some typical examples. Similarly, supercritical flo…     

大沽河河道整治方案的准三维数值模拟优化

大沽河口在河流长期水沙动力作用下,形成当前特有的河道形态。然而近年来大沽河口下游河道逐渐从河流主导型演变为潮汐主导型,河道形态已不再适应当前水沙动力条件。提出适用于当前水沙动力条件的新方案,并基于所建立的准三维河流动力模型,进一步对河道整治所涉及的不同闸坝位置、堤防形态、橡胶坝宽度、码头断面形态进行模拟,得出最优的河道整治方案。研究结果表明,当河口水沙动力条件变化较大时,可以通过设计适应于新水沙动力条件的全新河道形态,利用准三维模型进行优化,解决河道长期淤积和防洪问题。     

DYNAMICS OF THE KUROSHIO INTRUSION INTO THE SOUTHEAST CHINA ADJACENT WATERS-A NUMERICAL STUDY

1 .　ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｗｅｓｔｗａｒｄｉｎｔｒｕｓｉｏｎｏｆｔｈｅＫｕｒｏｓｈｉｏｏｃｃｕｒｓｉｎｔｈｅＬｕｚｏｎＳｔｒａｉｔａｎｄｏｆｆＴａｉｗａｎｎｏｒｔｈｅａｓｔｃｏａｓｔ.Ｔｈｅｂｅｈａｖｉｏｒｓａｎｄｓｔｒｕｃｔｕｒｅｓｏｆｔｈｅｉｎｔｒｕｄｉｎｇｆｌｏｗｓｈａｖｅｂｅｅｎｓｔｕｄｉｅｄｂｙｍａｎｙｏｃｅａｎｏｇｒａｐｈｅｒｓ ,ｙｅｔｎｏｔｆｕｌｌｙｋｎｏｗｎ .Ｔｈｅｄｙｎａｍｉｃａｓｐｅｃｔｓｏｆｔｈｅｉｎｔｒｕｓｉｏｎｈａｖｅｂｅｅｎｓｔｕｄｉｅｄｂｙｆｅｗｉｎｖｅｓｔ…