Appendix A - Derivation Of A Two Dimensional Single Phase Equation Of Gas Now Through Porous Media
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 11
- File Size:
- 179 KB
- Publication Date:
- Jan 1, 1974
Abstract
A mass balance equation can be written for the unit block of Figure 7 for changes within the volume during time At as: [ ] where x and y are the coordinates; q is the flow across any surface; p is the density of the fluid flowing through the medium; qvol is the volumetric flowrate; @ is the medium porosity; and Ax and Ay are the dimensions of the block. The subscripts t and (t+At) denote time levels and At is the change in time. Writing this equation in nota- tional form and on rearranging, the following expression is obtained:
Citation
APA: (1974) Appendix A - Derivation Of A Two Dimensional Single Phase Equation Of Gas Now Through Porous Media
MLA: Appendix A - Derivation Of A Two Dimensional Single Phase Equation Of Gas Now Through Porous Media. The National Institute for Occupational Safety and Health (NIOSH), 1974.