Abstract
The process of turbulent heat transfer in reciprocating engines was studied. The theoretical analysis was performed under the assumption that it was an axisymmetric two-dimensional transient process. The effect of the shapes of cylinder head on the turbulent wall heat flux was investigated. A series of valid solutions was obtained employing an algebraic grid generation technique. Hence the metrics of the coordinate transformation can be determined by direct analytic differentiation; it was found that the turbulent wall heat flux was dependent on the shape of the cylinder head. The existing experimental results of wall heat flux at three different radial locations on the cylinder head surface were compared. Simulated results were found to be nearly identical to the corresponding experimental results. It appears that the present computational algorithm gives a successful simulation for the transient turbulent wall heat flux in reciprocating engines.
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