Validation of Heat Transfer Predictions by Turbulence Models and HeatrnTransfer Correlations

摘要

Table 1 shows normalized values of measured, byrnAllen and Eckert [6], and predicted Nu numbers forrnRe = 62500 and 111000 (Re at bulk fluidrnproperties). The predictions of the Petukhovrncorrelation are nearly identical to the measuredrnvalues. The other correlations and the turbulencernmodels underpredict the Nussel number. The largestrnunderprediction is given by the Dittus-Boelterrncorrelation, up to 24% lower at Re = 111000, and uprnto 21% lower at Re = 62500.