风速
- wind speed;wind velocity
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(1) [wind speed]∶若空气流动是风,则空气运动的速率就是风速
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(2) [wind velocity]∶单位时间内空气沿水平方向流动的距离
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风速时程AR模型及其快速实现
AR model of wind speed time series and its rapid implementation
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基于Monte-Carlo法的极值风速模型研究
The extreme wind speed predicting model of typhoon by using Monte-Carlo method
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在北卡罗来纳州一处山顶测得的风速为每小时170英里。
170-mile-an-hour winds were clocked on a mountaintop in North Carolina .
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他根据破坏的程度估算风速。
He estimated the speed of the winds from the degree of damage
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平均风速保持稳定。
The average speed of the winds remained constant .
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他测出风速在30节以上。
He gauged the wind at over thirty knots
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游艇在风速为40节的大风中摇摆前行,有时航速能达到17节。
The yacht swayed in 40-knot winds , clocking speeds of 17 knots at times .
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风速达到5级。
Wind speeds reached force five .
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飓风安德鲁的风力可能会逐渐减弱,但风速仍在每小时100英里左右。
Hurricane Andrew may be slowly losing its punch , but its winds are still around 100 miles an hour .
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广东省气象局表示,2017年第13号台风“天鸽”周三中午在珠海市登陆,台风中心风速达到45米每秒。
Hato , the 13th typhoon this year , landed at noon Wednesday in Zhuhai City , south China 's Guangdong Province , bringing gales of 45 meters per second at its eye , according to local meteorological authorities .
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关于高斯烟羽模式中采用H和He平均风速的探讨
An Investigation on Adoption of H and He Average Wind Velocities in Gaussian Plume Model
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遥感和GIS技术在全球海面风速分析中的应用
Application of RS and GIS Technologies in the Analysis of Global Sea Surface Wind Speed
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CMOS风速风向传感器的设计
Design of CMOS wind velocity and direction sensor
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可利用某地年平均地面风速(V(10))和数次实测烟囱口高度的风速(V烟),应用对数律或幂指数律推算该地各高度上的风速。
Can be calculated with annual mean surface wind velocity and multi-measurements of wind speed at the height of funnel top .
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在该模型中,CA状态跃迁规则与坡度、风速、风向、湿度和树种紧密相关。
In the model , CA transition rules were modified in accordance with the slope , wind speed and direction , humidity and tree species .
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根据台风实测资料,利用PⅢ型分布函数,计算了抗台防灾和工程建筑设计中具有一定重现期的最大风速。
In accordance with the measured data of typhoon , P - ⅲ distribution function was used to estimate the maximum wind velocity of certain recurrence interval in typhoon prevention and engineering structure design .
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根据生产过程中的反馈参数,利用参数自整定模糊PID控制器完成对管道风速的实时控制。
According to feedback parameter from production process , using parameter self-tuning fuzzy PID controller to real-time control the speed of the air flow through the pipeline .
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开发应用了热膜风速仪测量搅拌槽内气-液两相流的局部气含率、液体的时均速度及湍流参数,从国内外已有的文献看,只有Lu做了类似的工作。
A hot-film anemometer was used in the measurement of local gas-holdup , liquid mean velocity and turbulence parameters in gas-liquid stirred tanks .
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采用富士PLC、人机界面与变频器实现了低速风洞数据采集和风速的闭环控制。
The low speed wind tunnel data acquiring and the closed loop controlling of wind velocity are realized by PLC and human machine interface and inverter from Fuji .
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峡谷上空风向与街道轴线的夹角越大、风速越小,则街道地面CO浓度越高。
The larger the angle between the wind direction and the street axis and the weaker the wind velocity , the higher the pollutant concentration on street surface is .
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用激光多卜勒风速仪(LDA)测量自由射流流场
Application of a laser-Doppler anemometer ( lda ) to measure the flow field in free jets
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温度越高,CO2的浓度越低,而风速越小,公路边的CO2浓度越高。
The higher the temperature , the lower the CO2 concentration . And the lower the rate of wind , the higher the concentration of CO2 also .
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研究表明,应用最小二乘解法求得的风速Weibull分布参数不能准确地反映平均风速指标。
However , the Weibull distribution parameters calculated with the least square method are not accurate enough to represent the average wind speed .
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在100m以上的边界层内,风速的月平均日变化显著,并且各月份的差异也比较大;
The monthly mean wind speed above 100m height has remarkable diurnal variation , and it has great difference among different months .
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本文在已知VonKarman功率谱密度函数的情况下,选择利用自回归滑动平均(ARMA)模型来仿真风速。
This paper uses Auto-regressive moving-average ( ARMA ) model to simulate the wind records based on Von Karman spectral .
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通过对河北省安平猪场两种猪舍内不同环境控制条件下的实验研究,对模型进行了验证,并对pH值、温度、地面风速、热压四因素进行了灵敏度分析。
Through a serial of experiments in Anping farm in North China , the model is verified , and sensitivities of major factors as pH value , temperature , air velocity and thematic pressure are analyzed .
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一种适用于二维CMOS风速计的集成控制电路,是采用恒温差的控制模式,能同时测量风速和风向。
This paper describes the controlling circuit of a two-dimensional CMOS silicon wind sensor , which exploits CTD controlling mode and can simultaneously measure both the wind velocity and direction .
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风速在地面柳枝和生草丛苔原10cm下几乎减弱为零。
Wind speeds are attenuated almost completely within 10 cm of the ground in willows and tussock tundra .
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提出了基于菲佐干涉仪和多通道光电倍增管(PMT)阵列探测器组合的多普勒频移检测的方案,适用于风速测量的直接探测多普勒激光雷达。
A method of discriminating Doppler shift using Fizeau interferometer and linear PMT array for a direct - detection wind Doppler lidar is proposed .
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利用CFD软件Fluent建立了一个三维街道十字路口模型,模拟了2种风向条件下街区风速分布和CO质量浓度分布的情况。
By using of Fluent CFD software , a 3-d intersection model of streets is set . The wind velocity distribution and CO concentration distribution near the intersection are simulated under 2 wind direction conditions .