Numerical analysis of a thermal deicerAn algorithm has been developed to numerically model the concurrent phenomena of two-dimensional transient heat transfer, ice accretion and ice shedding which arise from the use of an electrothermal pad. The Alternating Direction Implicit method is used to simultaneously solve the heat transfer and accretion equations occurring in a multilayered body covered with ice. In order to model the phase change between ice and water, a technique was used which assumes a phase for each node. This allows the equations to be linearized such that a direct solution is possible. This technique requires an iterative procedure to find the correct phase at each node. The computer program developed to find this solution has been integrated with the NASA/Lewis flow/trajectory code LEWICE.
Document ID
19920044326
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wright, W. B. (Sverdrup Technology, Inc. Brook Park, OH, United States)
Keith, T. G., Jr. (NASA Lewis Research Center Cleveland, OH, United States)
Dewitt, K. J. (Toledo, University OH, United States)