Abstract
A detailed programme of work has been undertaken to quantify the suitability of predictive methods for accurate determination of the levels of boiling heat transfer within an internal combustion (IC) engine cooling gallery simulator. An extensive array of experimental data has been obtained as the basis for the predictive validation. Working on the principle of superposition, the convective component of heat transfer has been represented by the established Dittus-Boelter correlation which has been extensively modified to account for developing boundary layers, surface roughness and near-wall viscous effects. The boiling component has been represented by the Chen model, modified for binary fluids and subcooling. For the IC engine cooling application it is concluded that the application of the Chen approach must be complemented by a convective heat transfer model that accurately represents the complex thermo-fluid situation being experienced within a developing flow.
Original language | English |
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Pages (from-to) | 877-889 |
Number of pages | 13 |
Journal | Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering |
Volume | 217 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2003 |
Keywords
- Viscous flow
- Heat flux
- Mathematical models
- Thermal conductivity
- Automobile engines
- Prandtl number
- Cooling
- Computer simulation
- Heat convection
- Surface roughness
- Boundary layers
- Nucleate boiling
- Correlation methods