凡妮莎:真的嘛,你都设计点啥?
下面是非设计点工作在性能上损失的一个例子。
The following is an example of the cost in performance of off-design operation.
根据设计转速下的计算结果,预估了压气机设计点的喘振裕度。
The surge margin at design operating point was estimated by the numerical results.
采用图形变形法对简化优化模型在不同试验设计点进行可视化分析;
Then Graph Morphing is adopted to visualize the local region around the experiment design point of simplified model.
DITA具有下列与其核心DTD中表达的具体设计点topic有关的层次。
DITA has the following layers that relate to specific design points expressed in its core DTD, topic.
在线交付的各种信息体系结构都倾向于把主题的概念作为这类信息的主要设计点。
The various information architectures for online deliverables all tend to focus on the idea of topics as the main design point for such information.
在设计点附近作了沿叶高效率分布及动叶进、出口速度三角形的测定。
The efficiency distribution along blade span and the inlet and outlet velocity triangle measurement of rotor blades were made around the designing point.
接下来的部分将描述他们是如何运行的,并通过实例代码演示了一些特殊的设计点。
Their operation is described in the next sections followed by example code to illustrate particular design points.
本文采用改进的流线曲率法对跨声速多级轴流压气机非设计点进行了性能模拟。
An improved streamline curvature numerical method is modified and applied to better approximate the flow fields of multi-stage transonic axial compressors.
按泵设计点轴功率1或1.4倍配备电机,超过匹配功率,请用户在订货时提出。
Motor matched according to 1 or 1.4 power. If motor power exceed, the customer must point out in order.
本文采用改进的流线曲率法+对跨声速多级轴流压气机非设计点进行了性能模拟。
An improved streamline curvature numerical method is modified and applied to better approximate the flow fields of multi-stage transonic axial compressors.
当工作条件不明或不稳定时,出口管路中必须安装节流阀,以保证泵在设计点运行。
A throttle valve must be installed along outlet pipeline when the conditions of work are not clear or stable, this can guarantee operation at the design point.
本实验喷管设计点效率均超过99%,部分实验接近100%,高度补偿效果明显。
The maximum nozzle efficiency of all of plug nozzle tested here are more than 99%, some of them are nearly 100%. It has good altitude compensation.
为了提高燃气涡轮起动机的功率,了解燃气涡轮设计点的气动参数以及内部流场结构。
It is important to understand aerodynamic parameters of design-point of gas turbine in order to improve the power of gas-starter.
对多级轴流式压气机在几个典型工况下各级静压相对于设计点静压的变化特性进行了研究。
The characteristics of static pressure changing at stage exits of a multi-stage axial flow compressor relative to the design points at several typical operating modes are investigated.
离心泵特性曲线上的效率最高点称为设计点,泵在该点对应的压头和流量下工作最为经济。
Centrifugal pump characteristic curve on the efficiency of the highest point known as the design point, a pump at the point corresponding to pressure head and flow of work under the most economic.
结果表明,这种因素会使控制系统的稳定鲁棒性变差,甚至使系统在最优设计点处失去稳定。
It is shown that the factor may lead to poor robust stability of a LQ optimal regulator. Even in the optimal design state, the factor may cause the regulation system unstable.
再应用改进了的端壁损失和激波损失模型,最终算出轴流压气机设计点损失沿叶高的分布规律。
Finally, the total loss distribution along the blade span of the axial flow compressor is estimated according to an improved end wall loss model and a shock loss model.
解决泵行业一直依据经验统计值确定面积比而不能使低比转速离心泵在设计点效率最高这一问题。
It is resolved that design condition efficiency for low specific speed centrifugal pump is not the highest in terms of experiential statistical area ration value.
三维粘性数值模拟的结果显示新低压涡轮效率在高空低雷诺数情况下比设计点下降2.3个百分点。
The results of 3d viscous numerical simulation show that the efficiency of new LPT decreases 2.3 percent under the low Reynolds number condition, which was compared with that of design point.
对所设计的三种外形方案,计算了设计点和非设计点的气动性能,并对影响性能的因素进行了讨论。
The aerodynamic performances of on-design and off-design for the three conceptual configurations designed were computed, and the factors affected the performance were also discussed.
在设计点附近选取合适的半基准圆锥激波角并考虑粘性影响时,可得到乘波体最大升阻比为3.36;
The biggest lift drag ratio 3.36 considering viscous effects is obtained at Mach 6 when a proper base conical shock wave angle is chosen.
考虑两类模糊回归模型:一类是设计点为实数、参数为模糊数;另一类是观察值为模糊数、参数为实数。
Two classes of fuzzy linear regression models are considered, one involves real design points and fuzzy number parameters, the other consists of fuzzy number observations and real parameters.
其次,组合d最优回归设计和D最优区组设计BIBD构造d最优设计并给出寻找新的D最优设计点的方法。
Secondly, it combines Doptimal regression design with BIBD to construct Doptimal design, and gives a method for obtaining new Doptimal design points.
乘波体是一种由已知超声速或高超声速流场生成的气动构形,在设计点乘波体构型的整个前缘产成贴附的激波。
A wave rider is a configuration designed such that the bow shock generated by the shape is perfectly attached along the leading edge at the design condition.
对带最大功率平台特性的螺旋桨设计点的选取、燃油限制功率的设定、燃油消耗量的计算等方面提出了新的看法。
Some new points of view are also brought in on choosing of propeller design point, setting of fuel stop power and calculation of fuel consumption.
由此提出一种算法,通过逐步修正求解得到的设计点以实现在设计点附近较高精度地逼近结构真实极限状态方程。
Therefore an algorithm is developed to (approximate) the limit state equation accurately around the true design point through iterative modifications for the design point solution.
低比转速泵的高扬程决定了叶片流道内逆压梯度比较高,这种压力分布使得水流易于在叶片表面脱流分离,这一现象甚至在泵的设计点也难以避免。
The high head produced by the impeller means high adverse pressure gradient within blade passage and because of this the flow often separates from the blade surfaces even at the design point.
例如,我们的“带上您自己的云(bring -your - own - cloud)”设计点能够支持使用现有硬件资源,而不是需要一个新的大额资本支出。
For example, our bring-your-own-cloud design point is in place to enable you to use your existing hardware resources, rather than require a large, new capital outlay.
例如,我们的“带上您自己的云(bring -your - own - cloud)”设计点能够支持使用现有硬件资源,而不是需要一个新的大额资本支出。
For example, our bring-your-own-cloud design point is in place to enable you to use your existing hardware resources, rather than require a large, new capital outlay.
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