As an exploratory research, unsteady flow model is feasible and potential.
作为探索性研究，非恒定流模型是可行的，有发展潜力的。
In this paper, 3-dimensional unsteady flow model for calculating gas flow in cylinder is introduced.
本文旨在用三维非定常流模型计算气缸内的空气流动。
This paper presents a generalized one-dimensional unsteady flow model for the calculation, of gas flow in manifold of I.
本文提出广义一维非定常流动的模型，用以计算内燃机进、排气管中气体的流动。
A one-dimensional unsteady flow model is established based on the topography of the river course between the Three Gorges and Zhicheng.
针对三峡—枝城河道的地形特征，建立一维不稳定流模型。
The calculation results of unsteady flow in an exhaust manifold model are presented.
最后对一根模型排气管进行了不稳定的流场计算。
According to geologic model of unsteady groundwater flow in heterogeneous medium and adopting the finite difference solution, the direction and strength of oil gas migration can be quantified.
根据非均匀各向异性地层的非稳定的地下水流动模型，采用有限差分法求解，可以定量判断油气运移的方向及强度。
Based on the theory of unsteady flow of compressible fluid and the seepage theory of formation fluid, the mathematical model of the gas transient flow in the wellbore has been established.
基于可压缩流体不稳定流动理论及地层流体渗流理论，建立了气体钻井过程中井筒瞬态流动的数学模型。
In order to obtain transient mathematical model as vectoring deflection which is very important in engineering and valuable in theory, three-dimensional and unsteady flow fields must be researched.
由于气流在喷管流动中具有复杂的三维非定常的特征，因此，建立其动态数学模型有着更为重要的工程及理论价值。
The mathematic model of the transient flow was set up to study the unsteady flow phenomena in the high-pressure common-rail injector.
针对高压共轨喷油器内部非稳态流动现象，建立起瞬态流动的物理数学模型，采用模块化分析方法进行了瞬态数值模拟。
The unsteady model with multiparameter reflects the characteristics of the unsteady flow in different directions and that of the unsteady water quality under aerobic, anoxic and anaerobic conditions.
该模型不仅反映了网状河道中非稳态的水流及水质变化特点，还反映了水体分别处于好氧、 缺氧、 厌氧状态下的水质及底泥中主要污染物的变化规律。
The thesis established the flow model based on one-dimensional, unsteady, compressible, Navier-Stokes equations, and discrete the governing equations using a finite-volume formulation.
本文基于一维非稳态多分支非定常流，建立了相应的数学模型，采用有限容积法理论对方程进行数值离散分析。
The model scale and the ratio of prototype to model for various hydraulic elements are selected in the light of theory of unsteady flow similarity for hydraulic models.
模型比尺和模型中各项水力要素的比例是根据不稳定流模型相似条件选定的。
In this paper, a non-linear model for two dimension and two phases unsteady state flow through a porous medium is solved by a variational finite element method.
本文用变分有限元方法处理了两维两相非线性不稳定渗流模型。
This paper also calculates the unsteady flow of the hydropower station's model by using of the characteristics method, the calculated result is extremely close to the experimental result.
本文还采用非恒定计算的特征线法，对该水电站引水系统模型非恒定流进行了计算，其计算结果与模型试验结果吻合。
A pressure drop model in horizontal well was established on the basis of the analytical solution of an elastic and unsteady seepage flow model in infinite reservoir.
本文在无限大均质地层弹性不稳定渗流模型解析解的基础上，建立了与地层耦合的水平井筒压降模型。
A one-dimensional unsteady model was developed to simulate the trapping of fine particles by a wall-flow filter by simulating the flow field and particle layer distribution in a channel.
针对壁流式过滤体捕集微细颗粒物的过程，建立了描述通道内流场和颗粒层分布的一维非稳态模型。
A 2-d numerical model of wave motion in lock approach channel is described, which is soluted by using the method of resultants of 2-d numerical model of unsteady flow and 1-d numerical model.
提出船闸引航道内水面波动的二维数学模型，采用二维非恒定流数学模型和船闸灌泄水一维数学模型联解。
To describe the characteristics of salt intrusion in tidal estuaries, a numerical model is established for vertical two-dimensional unsteady flow.
为描述潮汐河口盐水入侵特性而建立了垂向二维数学模型。
A numerical model for simulating unsteady flow and suspended sediment transport in river networks was presented.
所有单一河流断面处的含沙量通过单一河流悬沙输运的求解方法获得。
A 1-D unsteady flow hydrodynamic numerical model is developed for the river network region of the Pearl River Delta, and the model is calibrated with the measured data.
建立了珠江三角州河网区一维非恒定流水动力学数学模型，并根据实测资料对模型进行了率定验证；
Based on triangular grids and finite element method, a planar 2-d unsteady tidal flow mathematical model is established in the article.
本文基于三角形网格划分，采用有限元法，建立了平面二维非恒定潮流数学模型。
Based on the unsteady potential flow theory of incompressible liquid, a model of water-entry impact force for air-launched mine was presented, and the water-entry impact force was calculated.
基于不可压缩流体的非定常势流理论建立了空投水雷入水冲击力计算的数学模型，对水雷的入水冲击力进行了计算。
An unsteady 1-d flow and sediment model is used as a tool to study the scale effect caused by time distortion in physical models of sediment transport.
利用一维不恒定水流泥沙数学模型，研究泥沙实体模型试验的时间变态问题。
A unsteady large eddy simulation was used to model molten steel flow in a continuous casting mold to analyze the vortex flow.
为了研究结晶器内钢液涡流现象的形成机理，采用大涡模拟方法对此涡流现象进行模拟。
Based on model experiment, the local unsteady phenomenon in 2-d horizontal flow with steady divergent pressure was studied.
试验研究了恒定二元水平有压扩散流中的局部非稳态流动现象。
Based on model experiment, the local unsteady phenomenon in 2-d horizontal flow with steady divergent pressure was studied.
试验研究了恒定二元水平有压扩散流中的局部非稳态流动现象。
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