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Abstract:
Based on
the experimental data of temperature and relative humidity examined by
several sensors in a car during one day, the exponential model for
temperature as a function of time and the closed-box model for
calculation of relative humidity are put forward. With computational
fluid dynamics (CFD) method, the finite model of car is built, then the
relationship of temperature with time is demonstrated. The value of the
constam calculated form the CFD simulation agrees with the exponential
model very well. The results form the experiments and simulations here
can be adopted as an important basis for developing new technology of
reliability design for automotive electronics.
Key words:
Car’s
environment Temperature Relative humidity CFD method
CLC No: U461.7 TP391.9
Received
20000419, received in revised form 20000623
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