To reveal the influence of forced convection on gas shielded arc welding temperature field,the infrared camera was used to investigate the temperature field of the base metal in CO2 arc welding.
为了研究强制对流对气体保护焊温度场的影响,通过红外热像仪检测了CO2气体保护焊的温度场,发现在熔池及其邻近区域温度呈圆锥型分布。
Three-dimensional physical and mathematical models for the coupled heat transfer of natural convection in a liquid pool with heat source and forced convection in cooling coil tube are established.
建立了含内热源的液池内自然对流与冷却盘管内强制对流耦合传热的三维物理、数学模型,进行了相应的数值模拟计算。
The experimental data of single-phase forced convection and subcooled boiling in the narrow channel were compared with calculated values of the traditional Dittus-Boelter correlation respectively.
分别将狭缝通道中的单相强制对流和过冷沸腾的实验数据与传统的D ittus-Boe lter型关系式的计算结果进行了比较。
to 2000, the distribution on the calamity of severe convective storms in Hubei Province is analyzed.
本文根据史载气象灾害的记录(古代公元前186～1839年,近代1840～1949年)和现代气象灾害的详细记录(1950～2000年)的资料分析,概述了湖北省强对流天气灾害的时空分布特征;分析了造成湖北省强对流灾害的天气尺度系统、中小尺度系统的特征等。
The atmospheric unstable energy accumulation and release play a key role in the formation of severe convective weather.
运用数值模拟结果,计算了最佳对流有效位能IBCAPE、对流抑制能量ICIN、归一化对流有效位能INCAPE、能量—螺旋度指数IEHI和强对流天气威胁指数ISWEAT等不稳定能量参数。
Based on the radiosonde observation datum from the Meteorological Administration, a life cycle process of severe convective weather in the south and east of China is analysed.
根据国家气象局资料中心提供的历史探空资料分析了华南和华东地区的一次强对流天气的生命史过程,观测研究表明:中低空急流的爆发和急流内大风中心的传播是这次强对流天气主要的动力学条件。
The second part discribes a decision tree method of forecasting whether severe convective weather will happe.
第二部分说明了利用北京08时单站探空资料预报强对流天气有无及强度的判断树方法，为强对流天气的短时预报提供了有应用价值的思路和方法。
Numerical simulation of severe convection weather in Huhhot;
呼和浩特强对流天气的数值模拟分析
It is always very difficult to make an accurate analysis and forecast for severe convection weather in the daily operational work.
利用NCEP/NCAR再分析资料、TBB资料、探空资料及多普勒雷达资料等对2003年4月12日发生在江西以及福建北部的强对流天气过程进行了诊断分析。
By using Puyang and Sanmenxia CINRAD product combined with satellite cloud pictures and auto-station data etc,the severe convection weather process of Henan on June 28,2006 was analyzed.
利用濮阳、三门峡新一代天气雷达产品及云图、自动站等资料,分析了2006年6月28日河南省强对流天气过程。
Convection can be of two types: natural convection and forced convection.
对流可分为两类，即自然对流和强制对流。
Effect of Pressure on Air Forced Convection Transmit Heat Coefficient
压力对气体强制对流传热系数的影响
Coupled Heat Transfer of Natural Convection in a Liquid Pool with Inner Source and Forced Convection in Cooling Coil Tube;
有源液池内自然对流与冷却盘管内强制对流的耦合传热
Modelling of dendritic growth in forced and natural convections
强制对流和自然对流作用下枝晶生长的数值模拟
Thermodynamic Analysis of Steady State Heat Transfer between Condensation and Forced Convection
在冷凝与强制对流之间稳态换热的热力学分析
Experimental Investigation of Molten Salt (LiNO_3) Forced Convection Heat Transfer in Horizontal Tubes;
LiNO_3熔融盐水平管内强制对流换热实验研究
Characteristics on Flow Drag and Heat Transfer of Water Based Carbon Nanotube Suspension
水基碳纳米管悬浮液强制对流换热特性
CA-LBM modeling of solutal dendritic growth with forced convection
强制对流作用下溶质枝晶生长的CA-LBM模拟
Experimental Research on Forced Convective Flow Drag and Heat Transfer of CuO Nanoparticles Suspensions in a Small Tube
CuO纳米颗粒悬浮液在小管内的流动和强制对流换热特性
Numerical Study of Forced Convection in a Vertical Channel Filled with Heat-Generating Porous Medium
骨架发热多孔介质竖直通道内强制对流换热数值研究
Flow Field Analysis of Compulsive Spiral Flow in Finishing the Inner Surface of Rifle Barrel
强制螺旋流对身管内表面光整加工的流场分析
Study on the Chinese Enterprises Controhng Logistic Costs;
对我国企业如何加强物流成本控制的探讨
Dynamic Mechanism Analysis on an Severe Convection in The Outer Periphery of A Tropical Depression
热带低压远外围强对流天气的动力机制
The Stimulation of Low Concentration Glycosides on Na/K Pump Current and the Mechanisms of Their Cardiotonic Action in Guinea Pig Ventricular Myocytes;
低浓度强心苷对Na～+/K～+泵电流的兴奋作用及强心作用机制
Local Constant Temperature Environment System Using Forced Air Convection
基于强制空气对流散热的恒温环境控制系统研制
force ventilated DC motor
强制通风式直流电动机
Supply chain management means the design, planning and control of the information flow, material flow and cash flow with a view to strengthening competitiveness.
供应链管理就是对信息流、物料流和资金流进行设计、计划和控制以增强竞争力。
The results showed that bleeding sap had quite strong fungistatic activities on plant pathogenic fungi.
结果表明,丝瓜伤流液对植物病原真菌具有较强的抑制作用。