This paper shows one example of cooling system, optimized by utilizing computer simulation in the early development stage.
First, a numerical simulation is conducted to obtain the air flow rate through engine compartment room by the software “STREAM”.
Second, ΔTw are calculated by the software “KULI”, developed by Steyr-Daimler-Puch AG, to evaluate the original cooling system.
Third, the optimization of this system is conducted by the design of experiment for cost saving and weight reduction. The test value was well matched with the calculated one and CAE was confirmed to be very helpful for saving the proto-build cost and time period.