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- The mechanism of heat transfer enhancement of forced convective condensation with noncondensable gas on spiral grooved tube with baffle rods has been analyzed. 结果表明，扰流圈能大大增加气液边界层的湍动强度，具有优越的强化传热、传质效果。
- The mainstructure parameters of spirally grooved tube are diameter of tube, fin pitch,corrugation depth, wall thickness, spirally angle and spira. 螺旋槽管(亦称螺纹管)是其中的一个重要分支,它是一种优良的高效异形强化传热管件。
- Calculation of heat transfer surface area for spiral grooved tube 螺旋槽换热管传热面积计算
- Numerical Simulation and Experimental Research on Roll-pressing Process of Spiral Grooved Tube 螺旋槽管材滚压成型过程的数值模拟及试验研究
- spiral grooved tube 螺旋槽管
- Keywords the segmental baffle heat exchanger the spiral baffle heat exchanger spirally grooved tube; 弓形折流板换热器;螺旋折流板换热器;螺旋槽纹管;
- The mechanical structure and working principles of a kind of rolling tool for spiral groove tubes are introduced, and the geometrical parameters of normal spiral groove tubes are provided. 介绍了一种螺旋槽换热管轧制工具的机械结构及工作原理，给出了常用螺旋槽换热管的几何参数。
- Keywords Spiral groove tube;Compr ehensive property;Heat transfer; 螺旋槽管;综合性能;传热;
- Keywords s: spirally grooved tube;film theory;noncondensable gas;film condensation; 螺旋槽管;双膜理论;不凝组分;膜状凝结;
- Keywords finite element simulation;spirally grooved tube;rolling;rolling equipemnt; 数值模拟;螺旋槽管;滚压;滚压装置;
- Numerical Simulation of a Three-dimensional Velocity Field Coupled With a Temperature Field for the Heat Exchange Process in a Spirally Grooved Tube 螺旋槽管换热过程的三维速度场与温度场耦合数值模拟
- Keywords numerical modeling;spirally grooved tube;roll-pressing;shape of roller;corrugation depth;fin pitch;heat transfer; 数值模拟;螺旋槽管;滚压;辊型;槽深;螺距;换热;
- Unique straight or spiral grooved feed bush with force cooling system and unique screw ensure high plastification in low temperature, high speed extrusion of material. 独特的带有冷却系统直或螺旋开槽加料套和独特的螺杆设计保证了原料的低温塑化，高速挤出。
- As a typical example,the spiral grooved gas face seal was analyzed in detail with the consideration of seal face's waviness and taper through finite element method. 本文以螺旋槽气体润滑机械密封为研究对象,采用有限单元法分别对周向波度、径向锥度对其低速运转性能的影响规律进行了较为详细的分析研究。
- spirally grooved tube 螺纹沟槽管
- The rotating cylinder with spiral grooves acts as a speed selector. 螺旋切口的旋转圆筒作为速率筛选器。
- spiral grooved spherical bearing 螺旋槽球面轴承
- spiral grooved gas-lubricated bearing 气体螺旋槽轴承
- The reliability of numerical simulation was proved by experiment,and the relation between roll-pressing force and corrugation depth was obtained as guidance for secondary machining of grooved tube. 通过试验验证了用有限元法进行螺旋槽管材滚压成型过程模拟的可靠性,并得到了滚压力与槽深之间的对应关系,为螺旋槽管的二次加工提供了必要的实际指导依据。
- The mesh of copper tubes and loading ways of the balls are the key problems during three dimensional FE simulation of ball spinning of inner grooved tubes. 内螺纹管滚珠旋压三维有限元模拟中,铜管的网格划分和滚珠加载方式是模拟的关键问题。
