- 更多网络例句与对流地相关的网络例句 [注:此内容来源于网络,仅供参考]
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The simulation results show that the rod baffles placed vertically and horizontally in the unit duct continuously shear and comminute the streamlines of the flow when the fluid crosses over the rod-baffles, change the fluid flow directions, and result in the disruption of the continuity and stability of the fluid. The disturbing flow can promote the fluid turbulent intensity and effectively enhance the heat transfer.
结果表明,纵横交错布置的折流杆在单元流道中不断分割和剪切流道内流体,其扰流作用促进了流体湍流,减薄了液体边界层,减小了对流换热热阻,因而有效地提高了流体的对流换热强度。
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The mechanism was similar to the equivalent barotropic warm core structure. The Conditional Instability of the Second Kind was the primary mechanism of development and maintenance for MCSs in case 2005. As the MCSs intensified and persisted, the latent heating was highly efficient in producing significant enhancement of Mei-Yu front systems. The LLJ intensified by Coriolis acceleration of ageostrophic wind was induced by the effect of latent heat release. The LLJ and the effect of latent heat released reinforce each other in convection system through a positive feedback process.
综合而言,2005年个案中梅雨锋面结构为垂直近乎不倾斜的浅系统,槽线系统不明显,锋面水平温度梯度微弱,低层具有强水平气旋式风切,较似正压系统,个案中MCS发展及维持机制,主要是透过CISK 过程来维持;其过程是由於低层锋面带上之辐合激发对流发展,对流潜热释放造成局部气压梯度增强,因而增强地转风;而潜热释放亦有利低层辐合之增强,产生非地转风,再透过科氏加速增强西南风,使LLJ增强,形成一正向的回馈作用。
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Therefore, the moist potential vorticity analysis associated with the mesoscale convective system was researched in the paper, so as to reveal the moist potential characteristics of mesoscale convective system in typhoon circulation. The results showed that, during the generation stage, convective instability characterized by MPV1 was a favorable condition for forming MCS, while the vorticity which was caused by the slantwise isentropic surface and the vertical shear of the horizontal wind characterized by MPV2 was an inspiring mechanism. The specific process was that, the atmosphere exhibited the feature of strong convective instability at the low level of convection areas and the southeast areas, which included plenty of erratic energy. The slantwise ascended the stream transfer the erratic energy to northwest, where the stratification stability was small. As decreased, the cyclonic vorticity increased. On the other hand, the vorticity caused by the slantwise isentropic surface and the vertical shear of the horizontal wind inspired the release of convective instability and as a result that the MCS formed. During the development stage, the cyclonic vorticity increased quickly with the persistent decreasing of . Meanwhile, the inclination of isentropic linewas bigger than the absolute momentum line at middle level, which exhibited the feature of conditional symmetric instability , then the conditional symmetric instability was forced to release by the vorticity resulted from the slantwise isentropic surface and the vertical shear of horizontal wind, and the MCS developed.
结果表明,在对流形成阶段,MPV1即对流不稳定为MCS的形成提供背景不稳定条件,由MPV2即湿等熵面的倾斜和水平风的垂直切变而引起的涡旋发展作为强迫机制:MCS形成的区域及东南区域中低层是强对流不稳定层,蕴含丰富的不稳定能量,倾斜上升运动把对流不稳定区具有强不稳定能量的暖湿空气向西北中层的中性层结区输送,由于的减小,气旋性涡度增强,有利于形成对流,另一方面,由于湿等熵面倾斜和低空急流加强而引起的涡旋发展作为一种强迫机制激发对流不稳定能量得到释放,从而形成对流;在对流系统地发展阶段,由于低层的对流不稳定性进一步减弱,进一步减小,气旋性涡度进一步增强,有利于MCS的增强,中层等θe 线的倾斜度比绝对动量M 等值线的倾斜度大,对应有条件对称不稳定区域,满足条件对称不稳定条件,在湿等熵面倾斜和台风低空急流作用下引起的涡旋发展强迫对称不稳定能量释放,从而使得对流得以维持和加强。
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The aim is to test the effects of some physical processes on the structure of the solar convection zone, such as the dissipation, diffusion, and anisotropy of turbulence that have been ignored in the classical mixing-length theory.
研究发现,Reynolds应力模型得到的对流能量流通常比混合长模型的结果更大,并且传能效率敏感地依赖于对流模型中的耗散系数。
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Evaluation shows that the method can separate most of the convective and stratiform cloud precipi...
试验表明,ACSS能较准确地实现对流性降水和层状云降水的自动分类,相对于只根据二维结构分类降水性能上有较大提高,主要表现在能正确识别出亮带特征明显的强层状云和对流核外沿的对流弱回波区。
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At last the paper realized the advantages and disadvantages of passive solar building and adnvanced some suggestions in future research. From another point, the paper logged the process of the building of the experimental equipment and the mounting of the measurement equipments that accumulated some operating experimence.Carrying experiments, calculating and analyzing the experimental data for more than 2 years, the paper gained some constructive conclusions. In winter the indoor air temperature and RH are lower than comfort criteria, but people feels very comfortable in the passive solar house. The thermo-circulation formed by Trombe wall play an important role in improving indoor air temperature and RH. Based on the analogy analysis theory, the natural convection heat transfer in the air gap can be treated as superposition of two natural convection heat transfer processes occurring over isolated isothermal vertical flat plate, in this case namely the massive wall and glazing. Two empirical formulas for Q and Nu are obtained. The investigation shows that the optimal time to open the damper should comply with the period that the thermo-circulation happens which can be controlled by thermal response characteristics of Trombe wall surface temperature and air temperature in the air gap.
经过两年多的实测和计算,根据传热学、流体力学、统计学等学科的基础理论,对大量数据进行整理归类、分析讨论,主要得到如下结论:(1)冬季,含有特朗贝墙体的被动式太阳房室内热湿环境较舒适性标准偏低,但人体感觉比较舒适,特朗贝墙体形成的热循环通风在调节室内温度和相对湿度方面起到很大的作用;(2)特朗贝墙体空气间层自然对流可以看作是两个等温独立大平板的自然对流换热过程的叠加,通过与大平板自然对流理论类比获得了计算热循环过程中对流换热量的经验公式;(3)特朗贝墙体通风口的启闭可以根据玻璃幕墙内壁面温度、蓄热墙体外壁面温度和空气间层进出口空气温度之间的关系来进行控制,从而有效地阻挡冬季冷循环的发生;(4)夏季,如没有有效的通风降温措施,被动式太阳房内会产生明显的过热。
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These arguments support the notion of a convective mantle, with the plates being rafted along on
这些论据支持了一个对流地慢的概念,板块在其摩擦拖曳下沿地慢表面类似于船浮在水上一样移动。
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These arguments support the notion of a convective mantle, with the plates being rafted along on its surface, propelled by frictional drag on their undersides.
这些论据支持了一个对流地慢的概念,板块在其摩擦拖曳下沿地慢表面类似于船浮在水上一样移动。
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Thirdly, on the basis of the refractive index function around a hot-rolling bar obtained from experiments, the law of the light-ray propagation traces and the light-ray deflection around a high-temperature bar (stationary and in motion, respectively) is studied by the numerical computing of the light-ray differential equations.
作者用光学干涉和热电偶测温法,系统地对直径从35-86mm、壁温从500-1170℃的水平圆柱在自然对流及受迫对流状态下、周围折射率场或温度场进行了实验研究,得到了高温差水平圆柱对流换热的实验关联式。
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The result shows that gravity wave excited by the tropopause forcing can propagate stably to the mesosphere through the stratosphere so that the energy and momentum can be transferred from a region to another. In the propagation, gravity wave undergoes growth, overturning, convection and breaking. The breaking of gravity wave is the important source of convection and smallscale waves, and convective instability and overturn are the character of nonlinear phenomenon.
分析结果表明,从对流层顶激发的重力波能稳定地经平流层传到中层顶,从而将能量和动量从一个区域带到另一个区域;在向上传播过程中,重力波经历了发展、位温翻转、对流直至最终破碎的演变;重力波的破碎是对流和小尺度波动的重要的源,对流不稳定和翻转是非线性现象的一个基本特征。
- 更多网络解释与对流地相关的网络解释 [注:此内容来源于网络,仅供参考]
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convection:对流作用
海底扩张的说法既已证据确凿,其所以发生的动力和扩张的机制便成为进一步研究的对象,地函中的对流作用(convection)是最广为接受的动力来源. 截至目前为止,有两种基本的对流模式较为流行,部分学者认为上部地函与深部地函各自进行对流;
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converged terrace:辐合阶地
对流 convective flow | 辐合阶地 converged terrace | 聚合;趋向;汇合 convergence
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belt conveyor:传送带
因此看出地函对流以洋脊为上升口,高温地函物质在此冷却,诞生新的冷硬板块(名为岩石圈lithosphere,厚度约七十至一百五十公里),然后向左右分流,大陆块浮在岩石圈上恰如在传送带(belt conveyor)上的移动.
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Curie temperature:温度
他们都认为只要在海洋地壳生成的历史中,地球磁场曾经间歇地逆转其极性,则当热的地函物质对流涌上中洋脊,再冷却到居里温度(Curie temperature)时,就会被当时的磁场磁化,而将磁极方向记录在火成岩中.
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heat transfer:传热学
传热学 (heat transfer) 研究热量传递规律的学科. 传热是自然界和工程实践中普通存在的现象之一. 热力学第二定律指出,热量总是自发地由高温传向低温,传热学正是研究这-现象的一门科学. 基本传热方式有三种:热传导、热对流和热辐射.
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pressure gradient:气压梯度
吸收紫外线的微生物可能会产生明显的冷暖锋面,而锋面接著就可以产生对流循环,即强大的气压梯度(pressure gradient)会促使大气极快速地转动. 合理吗?太空生物学权威潘妮波斯顿(Penny Boston)虽不属金星阵营,但她承认在紫外线强烈的外星上过活的生物,
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RIE:火箭免疫电泳
免疫电泳技术的种类很多,如:对流免疫电泳(CIEP)、火箭免疫电泳(RIE)、电免疫扩散(EID). 在各种免疫电泳方法基础上,又不断地派生出一些新的技术,如:免疫电泳(IEP)技术,1969年Alper与Johnson推荐免疫固定电泳(IFE)是一种包括琼脂糖凝胶蛋白电泳和免疫沉淀两个过程的操作,
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convectively unstable air:对流不稳空气
对流雨 convective rain | 对流不稳空气 convectively unstable air | 辐合阶地 converged terrace
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orographic precipitation:地形降水
地形降水 地形降水(orographic precipitation)是湿空气流沿地形抬升而形成的降水. 暖湿的对流性不稳定的气团在前进途中,遇到较高山地的阻挡被迫上升,绝热冷却,达到凝结
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advect:平流输送
advantageously 有利地 | advect 平流输送 | advection 水平对流