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On drying of laundry. (English) Zbl 0753.35128
Summary: When we laundry is hung from a clothesline to dry in a quiescent atmosphere, the fabric first dries at the top, and the dry part subsequently extends downward. In this paper, the drying process is modelled mathematically with special reference to its moving boundary aspect. The model is used to derive an explicit formula for the time needed for a given part of the fabric to dry, and the results are compared with those of a simple experiment.
MSC:
35R35Free boundary problems for PDE
45E10Integral equations of the convolution type
80A20Heat and mass transfer, heat flow