查询词典 swirl

Measurements of turbulent combustion were conducted in a test facility for swirl combustor with staged air injection .

本文在分级进风旋流燃烧室的实验台上，测量了在不同的分级进风比率或二次直流风率条件下，湍流旋流燃烧的时均温度场、O_2、CO_2、CO和NO浓度场的分布。

The main research work includes:(1) To analyze the structure of 165F, explain the technical difficulty of indirect injection and the solution way from many aspects include of the shape and arrangement of combustion chamber, organizing of inlet air swirl, selection of injector and so on.

主要研究内容包括：(1)分析165F的结构，从燃烧室的形状与布置、进气涡流的组织、喷油器选择以及诸因素的匹配等方面说明小缸径柴油机直喷化的技术难点以及解决的方法。

When the injection pressure is about 0.1MPa, the air flow through the injector becomes critical, so if the swirl level variation reaches the required range, the pressure should be kept as low as possible.

空气射束的喷射压力越大，涡流比的变化范围也越大。而当喷射压力达到0.1MPa左右时，空气在喷嘴内的流动已接近临界状态。因此，射束喷射压力不宜过高，在满足涡流变化要求的前提下，喷射压力应尽量低一些。

Steady flow rig test shows that if the injector injects air at suitable position and direction, the AIVSIS is able to make the swirl measuring impeller strongly rotate clockwise and counter clockwise under the condition that the vacuum pump is turn off.

稳流气道试验表明，当空气喷嘴在柴油机螺旋进气道内以特定的方向喷射空气时，可以使模拟气缸内测量涡流的叶轮正向或者反向旋转。

A more precise QDM is developed for simulating the working process of swirl chamber diesel engine, based on a series of tests.

本文在实验研究的基础上，发展和完善了涡流室式柴油机稳态工作时的准维燃烧模型和计算程序，使该模型和模拟计算结果进一步精确化。

At the same time the strong turbulence and swirl in the chamber speed up the combustion process which leads to a efficient fuel consumption and improves its smoke.

利用缸内产生的挤流和涡流加快了扩散燃烧过程，使油耗率降低，烟度有了较大的改善。

In order to study the intake air flow characteristics in four-valve diesel engines, in this dissertation hot-wire anemometer and PIV twodimension instantaneous measuring technique are used. Extensive experimental study on two intake valve exit flow fields and longitudinal section flow field in cylinder are performed for different type of diesel engines. Great researching progress have been made on the interaction between two intake ports, and the formation process of in-cylinder swirl and flow field structure of cross and longitudinal section for four valve diesel engines. These results are presented in China for the first time and without such kind of research work reported abroad as detailed and deepgoing as this dissertation. The author designs and makes a set of hot wire measuring velocity device to measure the velocity distribution around the intake valve annulus and the cross section flow field in cylinder.

为了研究四气门柴油机进气过程中气体流动的变化规律，本文利用热线测速和PIV二维瞬态测速技术，对四气门柴油机两进气门出口全圆周流速场和缸内横、纵剖面的气体流动流场进行了大量的试验研究，在四气门柴油机两进气道之间相互影响的变化规律，缸内涡流的形成过程及缸内横、纵剖面流场结构等方面取得了重大的研究进展，这一研究工作在国内尚属首次，在国外也未见有如此全面、深入的研究报道。

Because of the asymmetry of the inlet structure and the unstable characteristics of the swirl flow,the spinning center of the gas flow deviated from the geometrical center of the cyclone,which resulted in the asymmetry of the flow field and the change of the three dimensional velocity components.

蜗壳式旋风分离器入口结构的非轴对称以及气相旋流的不稳定性造成了气流的旋转中心与旋风分离器的几何中心不重合，从而导致了气相流场三维速度的非轴对称分布以及速度分量由于基准不同而产生的大小和方向变化。

And this was all before the tricky stuff, when chocolate was cut into fans with a fine-bladed knife, or the final swirl of mango coulis was licked on with a paintbrush.

这些都完成之后还有更微妙的工序：巧克力要用细刃餐刀切成薄片，芒果酱则要用油画笔轻轻拂过。

And this was all before the tricky stuff, when chocolate was cut into fans with a fine-bladed knife, or the final swirl of mango coulis was licked on with a paintbrush.

这些都完成之后还有更微妙的工序：巧克力要用细刃餐刀切成薄片，芒果酱则要用油画笔轻轻舔过。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！