Engine Compartment Heat Rejection Analysis via Navier-Stokes Simulations

Chua, Kiat; Bilanin, Alan J.; Olson, M. Eugene

doi:10.4271/932971

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…Results at fan outlet were then mapped at cowl inlet. Chaua et al (1993) did similar exercise to find out the operating point of fan. Kiura et al (2005) validated the CFD capabilities by comparing the simulation results of fan PQ curve (P stands for pressure and Q for mass flow rate) against the experimental results.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cooling System Design on Engine Oil Temperature

2013

JAFM

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High engine oil temperatures have detrimental effect on overall engine performance and durability. High oil temperature is a direct indication of high engine temperature and hence, the inefficient cooling system of the engine. In this paper we show how the systematic investigation of cooling system thought experiments and CFD modeling can reduce the engine oil temperature within the desirable limit. A CFD model was developed for the entire cooling system and results were validated with the experimental measurements. The CFD model and experimental measurement techniques have been described in detail. Separate experimental measurements were conducted for flow and thermal measurements and the corresponding CFD model was validated against these measurements. Various design concepts were investigated and its effects on engine heat transfer coefficients and temperatures, change in system resistances, flow rates and other parameters have been presented. A simple experimental setup was developed for optimization of the centrifugal fan. The optimized fan was then used in the CFD model. It was observed that the reduction in engine oil temperature could be achieved by systematic design changes. However, it comes at the expense of increase in system resistance.

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Section: Introductionmentioning

confidence: 99%