Comprehensive Charge-cooler Model for Simulating Gas Dynamics in Engine Manifolds

Charge-coolers have a significant effect on the performance of turbocharged internal combustion engines. For a comprehensive simulation of internal combustion engines fitted with such devices it is important to model the whole of the manifold system. A wave-action model of a charge-cooler boundary is proposed, together with a methodology for predicting the heat transfer coefficient of the device. This approach enables the instantaneous effectiveness of the charge-cooler to be predicted as a function of the mass flow rate through the device.