Abstract
The study of hydromechanics has identified that surface roughness has an impact on the flow characteristics of single and two-phase fluids. Technical developments in the field of two-phase flow are of great importance for improving the understanding of underground inundation and gas outbursts, in order to reduce the risks to personnel. The paper describes recent advances in the understanding of two-phase (air-water) stratified flow. A new constitutive model is presented, based upon an extension of Darcy's Law and using the concept of relative permeability. The proposed model is verified by experimental results using 'state of the art' Two Phase High Pressure Triaxial Apparatus (TPHPTA). This study presents the results of laboratory testing that will enable the development of a relationship between roughness (Joint Roughness Coefficient, JRC) and the flow rate for steady state conditions.
| Original language | English |
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| Title of host publication | DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS) |
| Editors | Elsworth, Tinucci, Heasley |
| Publisher | American Rock Mechanics Association (ARMA) |
| Pages | 191-196 |
| Number of pages | 6 |
| ISBN (Print) | 9026518277, 9789026518270 |
| Publication status | Published - 2001 |
| Event | US Rock Mechanics / Geomechanics Symposium 2001 - Washington, United States of America Duration: 7 Jul 2001 → 10 Jul 2001 Conference number: 38th |
Publication series
| Name | DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS) |
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Conference
| Conference | US Rock Mechanics / Geomechanics Symposium 2001 |
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| Country/Territory | United States of America |
| City | Washington |
| Period | 7/07/01 → 10/07/01 |