Windshield Defrost Simplified CFD Model

• Autorzy: Schmid Michal

Identyfikatory

DOI

10.30657/pea.2019.25.02

• Języki publikacji: EN

Abstrakty

EN

The windshield defrost system, in general, is a vehicle safety feature. Thus, its restricted by variety of directives. However, the OMEs’ benchmark targets could be even more demanding as the deicing process is in addition also part of passengers comfort. From vehicle design point of view the wind-shield defrost system is typically connected to HVAC unit (Heating, Ventilation and Air Conditioning). In the technical solution the windshield is heated via hot air convection. Nevertheless, other methods are becoming more and more popular, like directly heated glass by hot wire ohmic heating (heated glasses). The defrost CFD model should predict the ice layer thickness in time and space and in environmental conditions defined according to appropriate directives and technical solution. The accurate and fast modelling technique is essential part of a vehicle development, especially nowadays, where the optimization techniques area widely used and requires hundreds of simulations runs. Modelling requests are even increasing with modern pure electric vehicles (EVs), were the thermal and energy management is more demanding compared to the classical internal combustion engine (ICE) vehicles. The aim of the work is to verify possibility to model the ice layer thickness with simplified approach, which could be beneficial from computational time burden.

Słowa kluczowe

EN

windshield defrost; CFD; ice layer thickness; VOF; Thin Film

PL

model CFD; model VOF; cienki film

• Wydawca: Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji
• Czasopismo: Production Engineering Archives
• Rocznik: 2019
• Tom: Vol. 25
• Strony: 8--11
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Schmid Michal

• University of Pardubice, Faculty of Transport Engineering, Department of Mechanics, Materials and Machine Parts, Studentská 95, 532 10 Pardubice, Czech Republic

Bibliografia

• 1. Kheirabadi, Ali C., Groulx, D., 2015. The Effect of Mushy-zone constant on simulated phase change heat transfer. ICHMT International Symposium of Advances in Computational Heat Transfer, Rutgers University, Piscataway, 289-294.
• 2. Al-abidi, A.A., Bin Mat, S., Sopian, K., Sulaiman, M. Y., Mohammed, A.T., 2013. CFD applications for latent heat thermal energy storage: a review, Renewable and Sustainable Energy Reviews, 20, 353-363.
• 3. Bergman, T.L., Incropera, F.P., DeWitt, D.P., Lavine, A.S., 2011. Fundamentals of heat and mass transfer. John Wiley & Sons, USA
• 4. Danaila, I., Moglan, R., Hecht, F. and Le Masson, S., 2014. A Newton method with adaptive finite elements for solving phase-change problems with natural convection, Journal of Computational Physics, 274, 826-840.
• 5. (PDF) The Effect of the Mushy-Zone Constant on Simulated Phase Change Heat Transfer. Available from: https://www.researchgate.net/publication/276454118_The_Effect_of_the_Mushy-Zone_Constant_on_Simulated_Phase_Change_Heat_Transfer [accessed Nov 11 2019].
• 6. Tesař, M., 2013. Bezpečnost silničního provozu. University of Pardubice, Pardubice, Czechia.
• 7. Thejeshwar Sadananda, 2016. Improving the Accuracy of CFD Method for Windscreen Deicing. Chalmers University of technology, Goteborg, Sweden.
• 8. SAE J381, 2019. Windshield Defrosting Systems Test Procedure and Performance Requirements - Trucks, Buses, and Multipurpose Vehicles.
• 9. SAE J902, 2011. Passenger Car Windshield Demisting and Defrosting Systems.
• 10. Siemens STAR-CCM+ Theory Guide, release 13.04.010.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).