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The effect of pulse flow on the performance of heat exchange tube with built-in spring was investigated using software FLUENT. The temperature field and pressure field under different pulse flow were obtained. Results presented that the average export pressure shows the same vibration period with that of pulse flow and the fluctuation amplitude increases with the increment of the frequency of pulse flow. Moreover, comparing with the case of steady flow, the thickness of velocity boundary layer decreases significantly and thus the heat transfer coefficient is enhanced greatly. Furthermore, the vibration amplitude of pulse flow has great effect on the heat transfer enhancement, while the frequency of pulse flow shows little influence on the heat transfer enhancement.

In the current big data environment, science and technology not only provide a new governance model for rural community governance but also put forward higher requirements for rural community governance level. Under the background of rural revitalization, promoting the construction of rural community cultural service system is not only an important choice to realize the equalization of urban and rural basic public services but also an important way to protect the cultural rights and interests of rural residents. On the basis of analyzing the real-time data of social media, this paper studies the design and implementation method of rural community culture platform and then puts forward the strategy of community public culture informatization construction under the background of aging. From a global perspective, all countries have their own ways and means to invest in public cultural services. Especially from the perspective of countries with better development of public cultural services, multichannel funding sources are an important indicator of the quality of cultural undertakings. With the development of China’s social economy, the rural endowment insurance system is becoming more and more perfect, and the basic living needs of the elderly are basically met.