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在"英语"词典里adverse pressure gradient}的意思

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英语中ADVERSE PRESSURE GRADIENT的发音

adverse pressure gradient play
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ADVERSE PRESSURE GRADIENT的语法类别

noun
形容词
动词
副词
代词
介词
连词
限定词
感叹词

ADVERSE PRESSURE GRADIENT在英语中的意思是什么?

点击查看«adverse pressure gradient»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

不利压力梯度

Adverse pressure gradient

当静压力在流动方向上增加时,发生不利的压力梯度。 数学上表示为: 这对于边界层是重要的,增加流体压力类似于增加流体的势能,导致流体的动能降低和减速。 由于边界层内部的流体相对较慢,所以受压力梯度的增加影响更大。 对于足够大的压力增加,该流体可能会减慢到零速度或甚至变得相反。 当流动反转发生时,流量被认为与表面分离。 这在空气动力学中具有非常显着的后果,因为流动分离显着地改变沿着表面的压力分布,并因此改变了升力和阻力特性。 湍流边界层倾向于能够比等同的层状边界层更好地承受不利的压力梯度。 An adverse pressure gradient occurs when the static pressure increases in the direction of the flow. Mathematically this is expressed as:. This is important for boundary layers, increasing the fluid pressure is akin to increasing the potential energy of the fluid, leading to a reduced kinetic energy and a deceleration of the fluid. Since the fluid in the inner part of the boundary layer is relatively slower, it is more greatly affected by the increasing pressure gradient. For a large enough pressure increase, this fluid may slow to zero velocity or even become reversed. When flow reversal occurs, the flow is said to be separated from the surface. This has very significant consequences in aerodynamics since flow separation significantly modifies the pressure distribution along the surface and hence the lift and drag characteristics. Turbulent boundary layers tend to be able to sustain an adverse pressure gradient better than an equivalent laminar boundary layer.

在英语 词典里adverse pressure gradient的定义

字典中不利压力梯度的定义是流量方向的压力增加。

The definition of adverse pressure gradient in the dictionary is an increase of pressure in the direction of flow.

点击查看«adverse pressure gradient»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

ADVERSE PRESSURE GRADIENT一样开头的英语单词

advergaming
adversaria
adversarial
adversaries
adversariness
adversary
adversative
adversatively
adverse
adverse possession
adversely
adverseness
adversities
adversity
advert
advertence
advertency
advertent
advertently
advertise

ADVERSE PRESSURE GRADIENT一样开头的英语单词

active ingredient
ancient
audient
clairaudient
client
disobedient
efficient
expedient
favourable pressure gradient
gradient
inexpedient
ingredient
inobedient
intergradient
obedient
orient
patient
pressure gradient
temperature gradient
unobedient

英语近义词词典里adverse pressure gradient的近义词和反义词

近义词

«adverse pressure gradient»的25种语言翻译

翻译者
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ADVERSE PRESSURE GRADIENT的翻译

通过我们的英语多语言翻译器,找到adverse pressure gradient25种语言翻译
该章节所呈现的将adverse pressure gradient由 英语向其他语言的翻译是通过自动统计翻译获得的;在英语中基本的翻译单位是单词«adverse pressure gradient»。

翻译者英语 - 中文

逆压梯度
1,325 数百万发言者

翻译者英语 - 西班牙语

gradiente de presión adverso
570 数百万发言者

英语

adverse pressure gradient
510 数百万发言者

翻译者英语 - 印地语

प्रतिकूल दबाव ढाल
380 数百万发言者
ar

翻译者英语 - 阿拉伯语

التدرج ضغط سلبي
280 数百万发言者

翻译者英语 - 俄语

градиент неблагоприятное давление
278 数百万发言者

翻译者英语 - 葡萄牙语

gradiente de pressão adverso
270 数百万发言者

翻译者英语 - 孟加拉语

প্রতিকূল চাপ গ্রেডিয়েন্ট
260 数百万发言者

翻译者英语 - 法语

gradient de pression adverse
220 数百万发言者

翻译者英语 - 马来语

Kecerunan tekanan buruk
190 数百万发言者

翻译者英语 - 德语

Druckanstieg
180 数百万发言者

翻译者英语 - 日语

逆圧力こう配
130 数百万发言者

翻译者英语 - 韩语

역 압력 구배
85 数百万发言者

翻译者英语 - 印尼爪哇语

Gradien tekanan mbebayani
85 数百万发言者
vi

翻译者英语 - 越南语

gradient áp lực bất lợi
80 数百万发言者

翻译者英语 - 泰米尔语

பாதகமான அழுத்தம் சாய்வு
75 数百万发言者

翻译者英语 - 马拉地语

प्रतिकूल दबाव ढाल
75 数百万发言者

翻译者英语 - 土耳其语

Ters basınç gradyanı
70 数百万发言者

翻译者英语 - 意大利语

gradiente di pressione negativo
65 数百万发言者

翻译者英语 - 波兰语

niekorzystne gradient ciśnienia
50 数百万发言者

翻译者英语 - 乌克兰语

градієнт несприятливе тиск
40 数百万发言者

翻译者英语 - 罗马尼亚语

gradient de presiune advers
30 数百万发言者
el

翻译者英语 - 希腊语

δυσμενείς κλίση πίεσης
15 数百万发言者
af

翻译者英语 - 布尔语(南非荷兰语)

nadelige drukgradiënt
14 数百万发言者
sv

翻译者英语 - 瑞典语

ogynnsam tryckgradient
10 数百万发言者
no

翻译者英语 - 挪威语

ugunstig trykkgradient
5 数百万发言者

adverse pressure gradient的使用趋势

趋势

词语 «ADVERSE PRESSURE GRADIENT»的使用趋势

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adverse pressure gradient的主要搜索趋势和常见用法
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词语«ADVERSE PRESSURE GRADIENT» 随时间而变化的使用频率

该图表展现了单词«adverse pressure gradient»在过去500年中的用法频率的每年演化其实施是基于分析词语«adverse pressure gradient»从1500年到现在在 英语数字出版物中出现的频率。

adverse pressure gradient的英语文献、引用和新闻中的使用范例

示例

«ADVERSE PRESSURE GRADIENT»相关的英语书籍

在以下的参考文献中发现adverse pressure gradient的用法。与adverse pressure gradient相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Separation Control in Adverse Pressure Gradients Using ...
freestream velocity of 40m/s. The flow accelerates in the beginning and when it encounters the ramp curvature, we notice an adverse pressure gradient effect, marked by a significant rise in the pressure. As discussed earlier in section 3.2.1,  ...
Vikas Kumar, 2008
2
Progress in Wall Turbulence: Understanding and Modeling: ...
Syed-Imran Shah, Jean-Philippe Laval, and Michel Stanislas Abstract Adverse pressure gradient turbulent flows are of prime importance for aeronautics as they are characteristic of the suction side flow along an airfoil at any positive angle of ...
Michel Stanislas, Javier Jimenez, Ivan Marusic, 2010
3
Turbomachinery Fluid Dynamics and Heat Transfer
In order to resolve these questions, experiments on triggered spots subject to an adverse pressure gradient were performed [9]. For a low free-stream turbulence level under zero pressure gradient, transition occurs by the stochastic and ...
Hah, 1997
4
Understanding Aerodynamics: Arguing from the Real Physics
For that, an adverse pressure gradient (rising pressure) is also required. How do we know that an adverse pressure gradient is needed? Note that for the negative velocity slope at the wall to appear, there must be a region in which the velocity ...
Doug McLean, 2012
5
Instabilities of Flows and Transition to Turbulence
However, for c = 0 cases, for higher c's, the boundary layer experiences an adverse pressure gradient quicker, for a shorter duration and subsequently it asymptotes towards a zero pressure gradient. For c = 0.8, an adverse gradient is created ...
Tapan K. Sengupta, 2012
6
Engineering Turbulence Modelling and Experiments 5
To verify this, we use a parabolic code and impose a constant adverse pressure gradient on a fully developed zero pressure gradient boundary layer to obtain a fully developed boundary layer flow with the given adverse pressure gradient.
W. Rodi, N. Fueyo, 2002
7
Effect of Pressure Gradient and Wake on Endwall Film Cooling ...
pressure gradient increases effectiveness. Lower effectiveness is measured in the presence of adverse pressure gradient. The literature contains some contradictory results about the influence of pressure gradient on film cooling effectiveness.
Sylvette Rodriguez, 2008
8
High Performance Computing in Science and Engineering ’01: ...
Statistical Analysis of a Turbulent Adverse Pressure Gradient Boundary Layer M. Manharti and T. Hiittli 1 ) Lehrstuhl fiir Fluidmechanik, Technische Universitat Miinchen Boltzmannstr. 15, D-85748 Garching, Germany Abstract. A direct ...
Egon Krause, Willi Jäger, 2002
9
Basic Aerodynamics: Incompressible Flow
UeU (x() decreasing dividing incipient separation point x w u < 1 = 1 dp dz Figure 8.19. Separated boundary layer in an adverse-pressure gradient. it experiences an adverse-pressure gradient and a wake forms downstream of the cylinder.
Gary A. Flandro, Howard M. McMahon, Robert L. Roach, 2011
10
The behavior of a compressible turbulent boundary layer in a ...
The mean-flow data include distributions of total temperature throughout the region of interest. The turbulent mixing properties of the flow were determined experimentally with a hot-wire anemometer.
William C. Rose, University of Washington, Ames Research Center, 1973

包含词语«ADVERSE PRESSURE GRADIENT»的新条目

找出国内和国际出版社所讨论的内容,以及词语adverse pressure gradient在以下新条目的上下文中是如何使用的。
1
Model of Human Vocal Folds Shows Effects of Asymmetrical Airflow
The GWU and University of Waterloo researchers found that asymmetric flow is created when there is an "adverse pressure gradient. «DailyTech, 十一月 10»
2
Georgia Tech's Bedford Makes Time for Spread Option and D …
... designed for antisubmarine warfare or talk about adverse pressure gradient. It would be a neat little gag, but impossible for Bedford to pull off. «New York Times, 十一月 09»

参考文献
« EDUCALINGO. Adverse pressure gradient [在线]. 可用 <https://educalingo.com/zh/dic-en/adverse-pressure-gradient>. 五月 2024 ».
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