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Soil Science Society of America Journal Abstract -

Simultaneous Flow of Water and Heat under Periodic Heat Fluctuations1


This article in SSSAJ

  1. Vol. 32 No. 3, p. 297-301
    Received: Oct 20, 1967
    Accepted: Feb 23, 1968

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  1. A. Hadas2



Theoretical Predictions of thermally induced moisture transfer have been compared ot measured quantities. Soil samples at different initial moisture contents were subjected to sinusoidal heat waves having an amplitude of 6C, and various periods of time. Temperatures were measured at various distances from the heat source, using copper-constantan thermocouples and recording the emf output.

The mositure distribution after the 1st, 2nd, 6th, and 16th cycle was determined gravimetrically.

The measured net transfer quantities were found to be larger than the theoretically predicted values by factors ranging from 0.8 to 8.0. The discrepancy between predicted and measured values of ent transfer may be attributed to the incompleteness of the theoretical models.

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