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首页> 外文期刊>International Journal of Heat Exchangers >Modelling of heat transfer and hydraulic resistance of turbulent gas and liquid flow in tubes with circular turbulizers
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Modelling of heat transfer and hydraulic resistance of turbulent gas and liquid flow in tubes with circular turbulizers

机译：圆形湍流管中湍流气体和液体流动的传热和水力阻力建模

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The theoretical model for calculation of heat transfer is developed at turbulent flow in channels in conditions of heat transfer enhancement distinguished from known models by higher accuracy, absence of additional assumptions, account of the greater number of parameters rendering influence to processes of heat transfer. The computation data on isothermal heat transfer largely appropriate to experimental data are obtained. For the first time theoretical model for calculation of nonisothermal heat transfer and hydraulic resistance is developed at turbulent flow in tubes in conditions of heat transfer enhancement for various kinds of heat-carriers (gas, dropping liquid) with variable thermophysical properties changed by a monotone image. The computation data for a broad band of turbulizers parameters and regime parameters are obtained. For the first time theoretical model for calculation of nonisothermal heat transfer and hydraulic resistance is developed at turbulent flow of jet fuel of supercritical pressure (JFSCP) in tubes in condition of heat transfer enhancement on the base of four-layer scheme of turbulent flow.
机译：计算传热的理论模型是在传热增强条件下，在通道中的湍流条件下发展的，该模型与已知模型有所不同，其精确度更高，没有其他假设，原因是参数数量增加对传热过程产生影响。获得了与实验数据相当合适的等温传热计算数据。首次建立了在单湍流图像改变了各种热物理性质的各种载热体（气体，滴液）的传热增强条件下，在管内湍流下计算非等温传热和水力阻力的理论模型。 。获得了宽带湍流器参数和状态参数的计算数据。在湍流四层方案的基础上，首次建立了在强化换热条件下管内超临界压力（JFSCP）喷气燃料湍流的非等温传热和水力阻力的理论模型。

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