tube pitch

A Study on Influence of Tube Pitch on Pressure Distributions Around Two Circular Cylinders in Tandem Arrangement

管间距对串联双圆柱表面压力分布特性的影响研究

Tube pitch and losses due to liquid film splatter have a very small influence on evaporative heat exchange characteristics.

管间距及液膜溅射损失对蒸发换热特性影响很小。

Experimental results indicate that the local heat transfer coefficients and average heat transfer coefficients increase with the increase of spray density, evaporation temperature and tube pitch.

并且局部传热系数和平均传热系数均随喷淋密度，蒸发温度，管间距的增大而增大。

This paper makes reference to much relevant information and analyzes different technique of machining, and finally adopts roll-pressing to process spirally grooved tube. Main parameters of spirally grooved tube have diameter of tube, wall thickness, corrugation depth and fin pitch.

本论文参考了大量的有关资料，分析了不同加工工艺特点，最后采用了滚压成型的生产工艺来加工螺旋槽管，其主要结构参数有管材外径d、壁厚t、槽深e、螺距p。

Effect of Seepage on Tube Pitch of Underground Water Pipe Heat Exchanger

渗流对地下埋管换热器传热管间距的影响

In order to analyse the relation of magnetic field distribution out of the axis of a loose helical current with the thread pitch, ratio of length to wide and seat in tube, the method of numerical simulation is adopted.

应用数值模拟方法，分析了疏松型超导螺线管电流轴线外的磁场与螺距、长宽比、管内位置的变化关系。