Spiral tape is a technology widely used to enhance heat transfer. In the present paper, an open spiral tape was designed to obtain good heat transfer performance. A comparative study between this type and ordinary spiral tape was performed numerically in tubular flows. The results show that the tubes with ordinary spiral tapes and open spiral tapes can produce strong radial force on the fluid, which can effectively change the flow state and turbulence degree of the fluid, so as to effectively strengthen the heat transfer. As the twist ratio increases, the temperature uniformity and maximum temperature in the tube have not been progressively improved and increased. The decrease of twist ratio is conducive to improving the influence range of spiral plate and enhancing the heat transfer effect, but it will increase the flow resistance and improve the resistance coefficient. When the twist ratio is 3, the thermal performance factor of the tube with open spiral tape can be enhanced by 22–25% as compared with the spiral tape of the twist radio is 1. All these demonstrated that open spiral tape is a promising technology to enhance convective heat transfer.

螺旋胶带是一种广泛用于增强传热的技术。在本文中，设计了一种开放式螺旋带以获得良好的传热性能。这种类型与普通螺旋带之间的比较研究在管状流动中进行了数值计算。结果表明，普通螺旋带和开口螺旋带的管子可以对流体产生很强的径向力，可以有效地改变流体的流动状态和湍流程度，从而有效地加强传热。随着捻比的增加，管内的温度均匀性和最高温度并没有逐步改善和提高。捻比的减小有利于提高螺旋板的影响范围，增强传热效果，但会增加流动阻力，提高阻力系数。当扭绞比为3时，与扭绞无线电的螺旋带为1相比，开口螺旋带管的热性能因子可提高22-25%。这一切都表明，开口螺旋带是一项很有前途的技术以增强对流传热。