Efficient numerical simulation of an electrothermal de-icer padIn this paper, a new approach to calculate the transient thermal behavior of an iced electrothermal de-icer pad was developed. The method of splines was used to obtain the temperature distribution within the layered pad. Splines were used in order to create a tridiagonal system of equations that could be directly solved by Gauss elimination. The Stefan problem was solved using the enthalpy method along with a recent implicit technique. Only one to three iterations were needed to locate the melt front during any time step. Computational times were shown to be greatly reduced over those of an existing one dimensional procedure without any reduction in accuracy; the curent technique was more than 10 times faster.
Document ID
19870044916
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Roelke, R. J. (NASA Lewis Research Center Cleveland, OH, United States)
Keith, T. G., Jr. (NASA Lewis Research Center Cleveland, OH, United States)
De Witt, K. J. (NASA Lewis Research Center Cleveland, OH, United States)
Wright, W. B. (Toledo, University OH, United States)