Summary
The linear fluid motion in a horizontal pipe heated from below is considered, when the temperature field outside the pipe is linear. By the method of small perturbations it is shown that the fluid motion becomes unstable for a critical value of the Rayleigh number, i.e., there is an additional convective motion, the streamlines of which are concentric curves in the plane of a cross-section of the pipe.
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Die Untersuchung wurde vom Wirtschaftsministerium des Landes Baden-Württemberg gefördert.
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Velte, W. Zur Stabilität der Strömung in einem horizontalen Rohr bei ungleichmässig erwärmter Wand. Journal of Applied Mathematics and Physics (ZAMP) 13, 591–600 (1962). https://doi.org/10.1007/BF01595583
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DOI: https://doi.org/10.1007/BF01595583