On the Theory of Pressure Relaxation in an Underground Tank with a Damaged Wall

A study has been made of the process of pressure relaxation in a liquid-filled tank with impaired leakproofness, which is found in the ground. Assuming that the leak rate is limited by filtration characteristics of the ground surrounding the tank, the authors have constructed a theoretical model rep...

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Bibliographic Details
Published in:Journal of engineering physics and thermophysics 2019-03, Vol.92 (2), p.450-454
Main Authors: Shagapov, V. Sh, Khakimova, Z. R.
Format: Article
Language:English
Subjects:
Analysis
Classical Mechanics
Complex Systems
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Numerical analysis
Permeability
Thermodynamics
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Summary:A study has been made of the process of pressure relaxation in a liquid-filled tank with impaired leakproofness, which is found in the ground. Assuming that the leak rate is limited by filtration characteristics of the ground surrounding the tank, the authors have constructed a theoretical model representing a linear integral equation. Here, the obtained equation has an exact analytical solution. On the basis of a numerical analysis of this solution, the authors have analyzed the influence of the scale of the damaged portion of tank walls, the permeability of the ground, and also the rheological properties of the liquid on the rate of pressure relaxation (decay) in the tank after its sudden pressure testing.
ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-019-01950-6