STABILITY OF A COMBINED HYDROGEN FLOW IN AN INCLINED HEATED LAYER IN THE PRESENCE OF AN EXTERNAL HORIZONTAL PRESSURE GRADIENT
R.V. Sagitov
Perm National Research Polytechnic University, Perm, Russia
Keywords: plane Poiseuille flow, convective flow, inclined layer, stability, Tollmien-Schlichting wave
Abstract
The linear stability of a combination of two mutually perpendicular flows in an inclined plane layer is investigated: a convective flow driven by a transverse temperature difference and a plane Poiseuille flow induced by a horizontal pressure gradient. Stability regime maps are constructed in the Reynolds number-Grashof number plane for various layer inclination angles, as well as disturbance regime maps in the inclination angle-Reynolds number plane. When the temperature of the upper boundary of the layer exceeds that of the lower boundary, the combined flow can be stabilized at Reynolds numbers higher than the critical Reynolds number for the plane Poiseuille flow without thermal stratification.
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