Effects of Pressure Waves Applying on Filtration
Abstract
During experimental investigations on the vertical shock tubes of shock-wave loadings influence on the filtration a number of effects were detected. Quantitative and qualitative interpretation of these effects is given within the framework of the mechanics of multiphase systems. Filtration of distilled water under action of a hydrostatic pressure of a column of this liquid above the core is considered. The core was preliminary saturated with air. In experiments a considerable (on the order) reduction of fluid flow rate through the core with the increase of time was observed. We have named this peculiarity filtration blockage. It is shown that at shock-wave loadings in the state of filtration various results are possible. During the action of the shock-wave loadings in a filtration blockage peak increase of fluid flow rate is observed. Repeated shock-wave loadings resulted in increasing of the average fluid flow rate level. During the action of waves at the initial stage of filtration (before blockage) the opposite result was observed: reduction (by 3-4 times) of liquid flow rate. Some results of experiments on the action of compression waves on a stationary filtration are published in 1-31.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2002
- Accession Number
- ADA409063
Entities
People
- A. A. Gubaidullin
- A. T. Akhmetov
- A. V. Shnaider
Organizations
- Russian Academy of Sciences