The Froude number of flow is the factor of flow status: supercritical flow or subcritical flow.
流量的福劳德数是流动状态的影响因素，即超临界流或亚临界流。
Numerical simulation on supercritical flow at river bend can provide bases for engineering design and safe evaluation.
弯道急流数值计算可以对工程设计及安全评估提供水流模型基础。
Therefore the improvement of supercritical flow bend is the concrete problem which needs to be resolved in the actual projects.
因此弯道急流的改善问题是实际工程中需要解决的具体问题。
Based on inverse method for supercritical flow control, this paper gives a direct computational method, for flows in 3-d controlling structures.
本文在急流控制逆命题的研究基础上，首次探讨性地提出了三维控制急流的正命题解法。
An artificial viscous term is introduced in the equation to treat the supercritical flow with embeded shock waves and to eliminate the discontinuous solution.
为了处理超临界流和有冲波情况，我们在方程中引入人工粘性项，以消除解中可能出现的不连续性。
The model is applied to calculate the transition water surface profiles from supercritical to gradually varied flow or from gradually varied flow to supercritical flow in rectangular open channel.
应用该模型对矩形明渠中缓、急流过渡的水面曲线进行了数值计算，并与理论解进行了比较。
Predicted drag values for a given airfoil(RAE2822 airfoil)were compared and discussed using the surface integration and wake integration methods under both subsonic and supercritical flow conditions.
在亚跨声速时分别采用了表面积分和尾迹积分求得给定翼型RAE2822的阻力。
Unstructured tetrahedral meshes are used to simulate the flow field inside high pressure combined valves of a 600mw ultra supercritical steam turbine under the nominal condition.
采用非结构化四面体网格，对某600MW超超临界汽轮机组高压主汽调节联合阀的额定工况进行了数值模拟。
The principle, characteristic and typical flow of supercritical fluid extraction has been reviewed in this article, in the end the author discussed the appliance of supercritical fluid extraction.
主要介绍了超临界流体萃取的基本原理、典型流程、特点及其在化工过程中的应用。
The organic solvent residue of lycopene oleoresin was removed with reverse supercritical CO2 fluid extraction under various combinations of pressure, temperature, flow rate of CO2 and extraction time.
采用超临界CO 2流体萃取技术，对番茄红素油树脂中的有机溶剂残留进行反向萃取。
CFD software is used to perform 3-d numerical simulation of steam flow field inside direct air-cooling exhaust steam pipe of a 660 MW supercritical unit.
利用计算流体动力学软件(CFD)，对某660MW超临界发电机组直接空冷排汽管道内的水蒸汽流场进行了三维数值模拟研究。
The coordination of supercritical boiler operation is coordination of air flow, water flow and coal mainly, the controlling indications are coal-air ratio and coal-water ratio.
超临界机组中锅炉的协调主要为风、水、煤的协调，控制指标为风-煤比和煤-水比。
A new model for describing two-phase flow in a supercritical fluid extraction column was derived.
推导和建立了描述超临界流体萃取塔两相流体力学特性的数学模型。
A new model for describing mass transfer performance in the supercritical fluid ext raction columns by continuous counter current flow was derived.
建立了描述连续逆流超临界流体萃取塔传质性能的数学模型。
The supercritical fluid has the following unique characteristics: low viscosity, high density, better performance of flow, mass and heat transfer, dis solution and so on.
前言：超临界流体具有黏度低、密度大，有较好的流动、传质、传热和溶解性能等特性。
Most part of the supercritical wing with equal chord and high aspect ratio is provided with 2-D flow characteristics approximately except wing tip.
对翼身组合体等弦长大展弦比超临界机翼，除翼梢处流动三维效应强外，机翼其余部分包括接近翼根附近，均具有近似二维流动的特征。
A new method has been proposed to predict the mass flow rates of a supercritical fluid through a sonic nozzle...
在此基础上，提出了预测超临界态流体通过音速喷管流量的新方法并得到了实验验证。
The HTS sections of these leads are conduction cooled, and the upper ends are cooled with 79K LN2 and the lower ends cooled by 4.5K supercritical He flow.
这些电流引线的高温超导段系传导冷却，上端用79K液氮冷却，下端由4.5K超临界氦流迫冷；
The method considers that the flow near tunnel walls is subcritical while the flow near model may be supercritical and shock waves may exist near by model.
该方法要求洞壁附近为亚音速流动，但允许模型附近出现超音速区及激波。
The method considers that the flow near tunnel walls is subcritical while the flow near model may be supercritical and shock waves may exist near by model.
该方法要求洞壁附近为亚音速流动，但允许模型附近出现超音速区及激波。
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