Heat transfer enhancement is by far an important component in the design of numerous industrial applications of Taylor-Couette flow including electric motors and particularly rotating machinery. To optimize the performances of these machines, superior knowledge of the fluid flow is vital to better estimate the heat transfer distribution. This study will specifically consider the effect the slit number and width possess on the distribution of turbulent Taylor-Couette flow and the resulting heat transfer correlation in the annulus of two concentric cylinders under varying conditions. A numerical simulation method is intended for the study using varying slit structure parameters of widths (2.5 ≤ w ≤ 7.5) mm and fitted with 6, 9 and 12 number of slits. The slit effect is then investigated under both isotherm and non-isotherm conditions considering the interactions between fluid flow regions in the mainstream area and the annulus. The small-scale vortex that appears in the annulus region improves the heat transferability between the fluid in the annulus and the main region as well as the heat transfer performance of the model with a gradual increase in Reynolds number.
Using the method of literature, field investigation, etc., to effectively interpret the operation of sports facilities under the national fitness service system, based on the current situation of sports site construction and management, combined with the connotation and extension of the national fitness service system, to build an ideal national fitness service system in southern Jiangsu. The results show that the sports field construction and management system reform in the south of Jiangsu province has made qualitative progress, the management mode is gradually diversified and the management situation has been improved to a certain extent. The number of sports venues and facilities per capita exceeded the national planning standards; The type of site facilities is single, and the matching of supply and demand needs to be improved; The level of sports management organization is not perfect, and the two-way system urgently needs to be run in. Suggestions are put forward: standardize the elaboration of standards, urban and rural same frequency high quality fitness; Perfect policy incentive mechanism, improve management professional level; Promoting regional exchanges and cooperation and establishing mechanisms for joint contribution and sharing; Multi-element digital development, enabling a new form of national fitness.
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