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The homogeneous nucleation with subsequent spontaneous condensation of water, pentanol, and ethanol xupors in a carrier gas are investigated experimentally and theoretically in the expansion part of a shock tube. The precise pressure and Mcw measurements give additional information about the wetness, so that the nucleation and condensation rates which are closely coupled for stronger expansion rates are determined more accurately. Predictions of the principle of the minimum of entropy production are compared with experiments performed for water, ethanol and pentanol at different pressures.
The homogeneous nucleation with subsequent spontaneous condensation of water, pentanol, and ethanol xupors in a carrier gas are checked experimentally and theoretically in the expansion part of a shock tube. The precise pressure and Mcw measurements give additional information about the wetness, so that the nucleation and condensation rates which are closely coupled for stronger expansion rates are determined more accurately. Predictions of the principle of the minimum of entropy production are compared with experiments performed for water, ethanol and pentanol at different pressures.