A.Yu.Lukash Reinolds' criteria and the energy of flows in cylindic pipes |
Applied hydromechanics, Vol. 1 (73) ¹ 4, (1999) |
| The theory of hydrodynamical instability has allowed to solve some questions of the transition to the turbulence of laminar flows. Despite of this theory development with the attraction of new ideas and methods a number of tasks remains not solved. The flopw in a round section pipe concerns also to them. Author has considered the energy and the dissipation in a round pipe and has come to conclusion that their relation renders the large influence on the transition to the turbulence. On this basis it has appeared possible to calculate Reinolds' critical number for the transition to the turbulence in a round pipe. For other flows the critical value of the mentioned relation is only the first step to disturbance occurrences. |
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| TEXT LANGUAGE: Russian |