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Analysis of ventilation shock losses by finite element method
Summary This paper presents an analysis of ventilation shock losses using the two-dimensional finite element method. It outlines the finite element formulation, in which the ventilation air flow is assumed to be a steady-state, viscous, incompressible and fully developed turbulent flow. In addition, the modified version of Van Driest model is assumed for the effective kinematic viscosity. The shock losses were estimated for the case simulating the airway configuration for (a) split, (b) junction and (c) gradual contraction. The results are compared and discussed with the shock loss data available in the ventilation literature. To estimate the shock losses, the flow solution in terms of pressure was first obtained for each airway configuration using the finite element method. The solution was then compared with that of a straight airway for estimating the difference in the head losses.
Analysis of ventilation shock losses by finite element method
Summary This paper presents an analysis of ventilation shock losses using the two-dimensional finite element method. It outlines the finite element formulation, in which the ventilation air flow is assumed to be a steady-state, viscous, incompressible and fully developed turbulent flow. In addition, the modified version of Van Driest model is assumed for the effective kinematic viscosity. The shock losses were estimated for the case simulating the airway configuration for (a) split, (b) junction and (c) gradual contraction. The results are compared and discussed with the shock loss data available in the ventilation literature. To estimate the shock losses, the flow solution in terms of pressure was first obtained for each airway configuration using the finite element method. The solution was then compared with that of a straight airway for estimating the difference in the head losses.
Analysis of ventilation shock losses by finite element method
Liu, C. W. (Autor:in) / Wang, Y. J. (Autor:in)
1987
Aufsatz (Zeitschrift)
Englisch
BKL:
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
Lokalklassifikation TIB:
275/3730/4800
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