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An Efficient Numerical Approach for Evaluating the Windshield Defogging Time
Technical Paper
2004-01-1504
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A windshield defroster has an important roll of clearing up fogged window glasses of a vehicle by blowing out warm air. In simulations parameters that affect the defogging time are the velocity, humidity and temperature of the flow from a defroster nozzle. However, individually varying all the parameters and investigating their effects will lead to many computing cases and long runtime. An approach that can considerably reduce calculation time is proposed. The approach is dictated by two key-steps: 1) First, steady-state velocity distributions for several different defroster flow rates are calculated; 2) Secondly, based on the pre-calculated velocity fields, the defogging time is estimated. This approach is compared to the conventional method that always couples all the parameters in transient calculations.
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Authors
Citation
Waku, T., Watanabe, N., Matsumoto, J., and Nakanishi, J., "An Efficient Numerical Approach for Evaluating the Windshield Defogging Time," SAE Technical Paper 2004-01-1504, 2004, https://doi.org/10.4271/2004-01-1504.Also In
Heat Exchangers and Their Simulation, Thermal Management, and Fundamental Advances in Thermal and Fluid Sciences
Number: SP-1818; Published: 2004-03-08
Number: SP-1818; Published: 2004-03-08
References
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