Hydrodynamic stability of boundary layers with surface mass transfer |
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Authors: | F K Tsou and E M Sparrow |
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Institution: | (1) Drexel University, Philadelphia, Pa., USA;(2) University of Minnesota, Minneapolis, Minn., USA |
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Abstract: | The linear stability of the flat plate boundary layer with surface blowing and suction is investigated by the application
of numerical techniques. Complete neutral stability curves, critical Reynolds numbers and wave numbers, and other stability
characteristics are determined for a wide range of surface mass transfer intensities. The critical Reynolds number, based
on the displacement thickness, is found to vary from 59 to 32500 between the extreme limits of blowing and suction that are
investigated. Comparisons are made between the present results and available linear stability information for boundary layers
with surface mass transfer and with free-stream pressure gradients. The universal stability bound of Joseph is evaluated and
compared with the corresponding numerically exact neutral stability curve. |
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