Although many phase change problems involve uncertain or stochastic properties, the computation of temperatures and front position is typically based on known properties. This paper considers the effect of uncertain or noisy properties, particularly the latent heat, and investigates the application of perturbation techniques, polynomial chaos, and Wick products in computing the temperatures and front position. These methods are dependent upon formulating the problem in a manner in which the uncertain properties appear in the differential equations and are thus limited in their applicability.

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