vaneless
- vaneless的基本解释
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[机] 无叶片的
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Flow simulation and performance analysis are conducted for the stage of a high energy head unshrouded centrifugal compressor with vaneless and tandem diffuser respectively using CFD software. The flow field distribution and performance comparison are offered in the two conditions.
使用 CFD 软件对某高能头半开式离心压缩机的级,在分别采用无叶扩压器和串列扩压器时进行了流动模拟和性能分析,给出了两种情况下的流场分布和性能比较。
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Such as: calibrating the laser system, calibrating the measurement region and focusing the CCD camera for the diffuser passage with complex shape, selecting the best incidence angle for the laser sheet,, setting the time parameter including the time between pulses and the time between records, designing the laser system, and selecting water fog with 1~5μm diameter as seedings for PIV measurement after comparing several particles. All of the work is useful to accumulate the PIV measurement experience in turbomachinery. 2. Experimental research of the unsteady flow in diffusers The instantaneous velocity fields within the vaneless and vaned diffuser were measured by using PIV technique.
本文在国内首次进行PIV测量系统对离心风机扩压器内部非定常流动的测量,为此,作者作了必要的实验前期工作:双谐振激光器工作特性的标定;针对扩压器复杂的流道形状,解决了片光源照射区域位置的标定和CCD相机的聚焦等问题;为复杂流道形状的扩压器内部流动的PIV测量选择了最佳片光源入射角度;选择了合适的PIV测量时间参数;为实现非定常内流的PIV测量设计了PIV系统的光路布置;根据非接触测量示踪粒子的选取原则,对几种示踪粒子进行了筛选,最终1~5μm的水雾粒子在本文实验条件下获得最佳效果。
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At the same time, in the inner unsteady flow-field of vaned and vaneless diffuser, as well as gap between impeller and diffuser has been measured by PIV. The measurement plane is at z=10, 15, 20mm in axial direction from impeller shroud.
对叶轮和扩压器在靠盖侧、跨盘盖中间流面、靠盘侧三个流面,即轴向位置分别为Z=10mm,Z=15mm,Z=20mm三个流面上的速度场进行了实验研究。
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Numerical calculation of the unsteady flow within turbomachinery The periodic unsteady flow within impeller/vaneless diffuser or impeller/vaned diffuser was numerical simulated in this thesis. The simulation was calculated on the CFX software flat.
离心风机内部非定常流动的数值模拟本文对叶轮/无叶扩压器和叶轮/有叶扩压器两种结构形式的离心风机内部流动进行了全流场非定常流动数值模拟。
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By Ensemble-averaged Method, the mean field was got to show the 3D structure of flow. By Phase-locked Averaged Technique, the periodic mean field was got to reflect the periodic unsteady characteristic. The 3D structure and the periodic unsteady characteristic of the unsteady flow within the vaneless and vaned diffuser were discussed through analyzing the mean field and the periodic mean field.
离心风机扩压器内非定常流动的实验研究本文完成了离心风机两种结构条件下无叶扩压器、有叶扩压器内部的非定常流动瞬态全流场的实验测量,获得了不同运行工况下PIV的瞬态流谱,为研究扩压器内部非定常流动提供了基础实验资料。
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- 更多网络解释与vaneless相关的网络解释 [注:此内容来源于网络,仅供参考]
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vaneless diffuser:无叶片式扩散器
vaned diffuser 叶片式扩散器 | vaneless diffuser 无叶片式扩散器 | vanishing 消失
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vaneless diffuser:无叶片式扩散器无导连的扩压器
vaned diffuser叶片式扩散器 | vaneless diffuser无叶片式扩散器无导连的扩压器 | vapoize蒸发
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vaneless diffuser:无叶扩压器
vaned diffuser 叶片扩压器 | vaneless diffuser 无叶扩压器 | Vanette 瓦内特牌汽车
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vaneless diffuser:无叶扩散器
vane pump 轮叶泵 | vaneless diffuser 无叶扩散器 | vapor compression distillation plant 蒸气压缩蒸馏装置
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vaneless vaned diffuser:无叶-有叶混合式扩散器
vaneless diffuser 无叶片式扩散器 | vaneless vaned diffuser 无叶-有叶混合式扩散器 | vaneless 无叶片的
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