对动态水力旋流器圆管螺旋流场结构及形成原理作了简要描述。
The structures and forming principles of the cylindrical spiral flow field of a dynamic hydro-cyclone were briefly described.
本文用垂直同轴圆柱环形空间内的螺旋流流场作为钻井井内流体流场的理想化模型，得出了任意纯粘性流体螺旋流流场的速度及排量表达式。
The expressions of velocity and flow rate of helical flow of a general viscous fluid has been obtained by using helical flow in a vertical annular space as an idealized flow model.
计算结果表明，旋风分离器内部的流场分为两部分：螺旋通道内比较稳定的流场和筒体中心区域的复合涡结构流场。
It is shown that there are two regions in the cyclone, the steadily tangential flow in the spiral channel and the combined vortex flow in the centre.
本文采用理论方法系统地研究了非均匀流场中螺旋桨性能预报和理论设计问题。
This paper adopts the theoretical method to research the problem on the performance prediction and the design of the propeller operating in ship wake systematically.
并通过模型试验进一步证实该船振动的成因主要是由于螺旋桨在不均匀流场中运转时产生的激振力所致。
It is verified by means of model test that the ship vibration is caused by the propeller-excited force, which is generated by the propeller running in the non-uniform stern flow field.
本文主要介绍双桨浅吃水肥大船尾型、伴流场与螺旋桨旋向配合研究的主要结果。
This paper describes primarily the results of the research on the combination of stern shape, wake field and propeller rotation direction for a shallow draft full ship model.
为描述进水口前立轴旋涡多圈螺旋的流场特性，运用数值模拟、试验研究和理论公式3种方法。
The flow field characteristics of vertical vortex with multi-circle spiral flow at hydraulic intakes are described by numerical simulation, experimental investigation, and theoretical equations.
本论文利用FLUENT的这些特点模拟大侧斜可调桨的三维粘性流场，在没有图谱可以利 用的条件下，使 CFD成为螺旋桨设计的手段之一。
This thesis tends to simulate the 3D viscous flow of a high-skew controllable pitch propeller by using FLUENT, which can serve as a design method without collection of illustrative plates.
本论文利用FLUENT的这些特点模拟大侧斜可调桨的三维粘性流场，在没有图谱可以利 用的条件下，使 CFD成为螺旋桨设计的手段之一。
This thesis tends to simulate the 3D viscous flow of a high-skew controllable pitch propeller by using FLUENT, which can serve as a design method without collection of illustrative plates.
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