查询词典 flow

The method of characteristics was introduced to calculate the flow field after the primary nozzle exit, whilst Korst's recompression criterion was adopted to determine the corresponding cell pressure, and one-dimensional control volume method was employed to analyze the downstream flow field.

该方法采用特征线方法分析一次流喷嘴出口流场，结合Korst再压缩判据确定引射器盲腔压力，采用一维控制体方法计算第二喉道引射器的下游流场。

To find the mechanism of refluence in the flue,authors conduct the numerical simulation of liquid-field in the flue of multilayer building by adopting K-ε turbulent flow model and two-phase flow theory,and plots the charts that the pressure,consistency and velocity distribute in the flue.

为了探明多层住宅烟道串味的机理，采用κ-ε湍流模型，利用两相流理论，对多层住宅烟道内的流场进行数值模拟，得到烟道内的压强、速度和体积分数分布图。结果表明：在第一支烟道与主烟道的交汇处压强梯度较大，一楼排放的烟气大部分向上流动，第二支烟道附近油烟的体积分数梯度大

In order to resolve this problem,an effective conversion of fitted-body coordinate has been used in numerical simulations of flow field within a facture of layered medium ,resulting in a successful transformation of 2D flow-field calculation within a fracture from a complex physics domain to a regular calculation domain.

为了有效地攻克这一技术难关，在层状介质缝内流场数值模拟中，采用了有效的贴体坐标变换，成功地将二维缝内流场计算从复杂的物理域转换到规则的计算域，从而为我国全三维水力压裂数值模拟软件的开发和应用提供了良好的理论基础和新的思路。

After a detail calculation and analysis, the reason that the flow distribution coefficient of a flow divider in the primary reheater was too small had been found.

在进行了详细的计算分析后，发现主要是由于低温再热器进口流量分配器流量分配系数太小所致。

Methods Radionuclide ambulatory renography and color Doppler renal hemodynamics were studied in 30 patients with esential hypertension and left ventricular hypertrophy and 21 healthy control group. The glomerular filtration rate,renal index and the distribution of intrarenal artery were investigated.The resistive index, the systolic peak velocity,andthe low diastolic flow velocity and acceleration time of theintrarenal arterial flow were measured. Results Compared with control group the density of intrarenal artery of patients with esential hypertension and left ventricular hypertrophy were significantly decreased.

对30例高血压伴左室肥厚病人及21例年龄相当的健康人对照组行核素动态肾功能检测及彩色多普勒超声肾血流动力学检查，测定肾小球滤过率和肾脏指数及肾内动脉分布，段动脉、叶间动脉的阻力指数，血流峰速加速时间，收缩期最大血流速度，舒张期末最低血流速度。

This relation will imply that,to what extent,the position ofan attractor or a repeller of a non-singular Smale flow in a closed 3-manifold depends onthe behavior of the flow on the rest of the manifold.

我们还得到了挠量、一般闭三维流形中链环的Alexander多项式与基本群的表现之间的关系，并由此说明了闭三维流形上Smale流的吸引和排斥闭轨组成的链环的Alexander多项式与流在流形其他部分的行为的依赖关系程度。

To solve the reroute problem of air traffic flow management in severe weather or flow constrained areas, a new rerouting method based on geometry algorithm is proposed.

为解决空中交通流量管理中恶劣天气或流量受限下的航班改航问题，提出了基于几何算法的改航路径规划方法。

Valves requiring processing in the Clean Room should first be assembled prior to cleaning, subjected to cracking and reseat pressure, and flow tested in the flow outside the clean environment.

要求在绝对无尘室处理的阀门首先必须在清洗前进行组装，经过裂化及复位施压，然后在清洁环境下的流体中作流动测试。

High precision format, unstructured dynamic mesh with a large displacement and multi-species gas flows were computationally expensive, the problem of resourceless and inefficient of single computer appeared. Parallel arithmetic based on PC-Cluster system for the oblique detonation wave flow and the muzzle flow include high speed projectile were discussed. The results proved that the rationality of parallel arithmetic provided a new method to simulate the complex chemical reaction flows. The present code represents a validated, efficient and versatile tool developed for the simulation of hypersonic multi-species chemical non-equilibrium flows.

高精度计算格式、化学反应源项的刚性和大位移的运动边界处理都给计算和存储带来了沉重的负担，单机资源不足和计算时间长的问题凸现，利用PC机和局域网资源建立分布存储式并行计算系统，并基于非结构动网格和分区算法开发了复杂化学反应流场数值模拟的并行计算程序，对高速飞行实验弹丸诱导的斜爆轰波流场和含有大位移动边界的膛口燃气射流场进行了并行模拟，有效地缩短了计算时间，扩展了计算规模，为复杂化学反应流数值模拟研究提供了新的手段。

The research work consists of the analysis and determination of the dominant propagating waves in pipe, the revealment of nature of energy propagation and distribution in pipe-fluid system, the establishment of the energy flow measuring theory and methodology and the realization of energy flow measuring system.

研究内容包括：分析确定管道系统中的主要振动波，揭示流体管道系统中振动能量流的传递和分布规律，建立关于管壁振动能量流的测量理论与方法，实现能量流的测量技术。

The United Kingdom has pledged to provide technical assistance to the peacekeeping effort in Darfur, including airlifting supplies and equipment to assist the African peacekeepers.

英国承诺为达佛的維和努力提供技术帮助，包括提供非洲的維和部队空运补給和裝备。

Results: The level of ET-1mRNA in placental villus was significantly higher in pre-eclamptic women than that in control group.

结果：妊高征组患者胎盘绒毛组织ET-1 mRNA的表达较正常妊娠组明显增高。