An engineering stability techinque for unsteady, two-phase flows with heat and mass transfer
This paper considers the stability of an unsteady, two-phase flow with heat and mass transfer. The model problem is motivated by loss of coolant accidents in nuclear power plants. For the example problem, two flow geometries are considered: inverted annular flow boiling and an annular mist flow. The model is comprised of coupled Mathieu equations so that stability can be determined using a Floquet analysis. The flow is found to be mathematically unstable to all perturbative wavenumbers, but for practical purposes there are regions of stability. Using the solution's growth behavior and doubling-time, the notion of practical stability, which is termed herein as "engineering stability," is quantified and a method is provided for application to other engineering stability problems.
© This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Files
Metadata
| Work Title | An engineering stability techinque for unsteady, two-phase flows with heat and mass transfer |
|---|---|
| Access | |
| Creators |
|
| License | CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives) |
| Work Type | Article |
| Publisher |
|
| Publication Date | September 2021 |
| Publisher Identifier (DOI) |
|
| Source |
|
| Deposited | February 23, 2022 |
Versions
Analytics
Collections
This resource is currently not in any collection.