Computational two-phase flows in conduits with and without heat addition
| dc.creator | Luthan, Jurizal Julian | |
| dc.date.accessioned | 2016-11-14T23:28:57Z | |
| dc.date.available | 2011-02-18T18:57:20Z | |
| dc.date.available | 2016-11-14T23:28:57Z | |
| dc.date.issued | 1992-05 | |
| dc.description.abstract | The main objectives of this study of two-phase ga^-liquid flows are to reduce the time and cost and to improve prediction capability of process development in comparison with purely empirical design methods. The problem associated with mathematical modeling of the detailed flow patterns in two-phase flows involves the solution of strongly coupled, nonlinear partial differential equations of the field equations. The solution of these equations lies well beyond any existing analytical approach. Therefore finite-diflference approximations, based on IPSA (Inter-P,hase £lip A^ialyzer) algorithm, are used to solve the problem. Three cases are considered in this study. The first is the problem of two-phase gas-liquid stratified flow with constant properties for both fluids. The second is the problem of idealized boiling problem where, again, the properties of the two fluids are taken to be constant. As the last one, the previous problem is revisited by relaxing the simplifying assumptions. The last two cases are treated as pseudo-transient problems. In addition, all three problems are computed with one spatial dimension dependency. While the flow model employed is two-fluid or six-equation model. The results are then compared with the available analytical solution and experimental data. It was found that they are satisfactorily comparable. The methodology developed may be useful in future research with other fluid pairs or components. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/2346/8769 | en_US |
| dc.language.iso | eng | |
| dc.publisher | Texas Tech University | en_US |
| dc.rights.availability | Unrestricted. | |
| dc.subject | Two-phase flow | en_US |
| dc.title | Computational two-phase flows in conduits with and without heat addition | |
| dc.type | Dissertation |