Characteristics of unsteadiness for transitional plane fountains in linearly stratified fluids
Inam, Mohammad Ilias, Lin, Wenxian, Williamson, N., Armfield, S.W., and He, Yinghe (2019) Characteristics of unsteadiness for transitional plane fountains in linearly stratified fluids. International Communications in Heat and Mass Transfer, 100. pp. 83-97.
![[img]](https://researchonline.jcu.edu.au/style/images/fileicons/application_pdf.png) |
PDF (Published Version)
- Published Version
Restricted to Repository staff only |
Abstract
When a fountain is injected into a linearly stratified fluid, its behavior will be governed by the stratification of the ambient fluid, represented by the dimensionless temperature stratification parameter (s), in addition to the Reynolds number (Re) and the Froude number (Fr). In this study, a series of three-dimensional direct numerical simulations (DNS) were carried out using ANSYS Fluent for transitional plane fountains in linearly-stratified fluids with Re, Fr and s over the ranges 28 ≤ Re ≤ 300, 3 ≤ Fr ≤ 10, and 0.1 ≤ s ≤ 0.5 to study the effects of these governing parameters on the characteristics of such unsteadiness. Empirical correlations to quantify the effects of Fr, Re and s over the studied ranges on the characteristics of the unsteadiness are also obtained and compared to the relevant scaling relations developed for weak plane fountains.
| Item ID: | 57238 |
|---|---|
| Item Type: | Article (Research - C1) |
| ISSN: | 1879-0178 |
| Keywords: | direct numerical simulation; plane fountain; stratification; transitional flow; unsteadiness |
| Copyright Information: | © 2018 Elsevier Ltd. All rights reserved. |
| Funders: | National Natural Science Foundation of China (NNSFC), Australian Research Council (ARC), James Cook University (JCU) |
| Projects and Grants: | NNSFC 51469035, ARC DP160102134 |
| Date Deposited: | 27 Feb 2019 07:35 |
| FoR Codes: | 40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401213 Turbulent flows @ 80% 40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401204 Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) @ 20% |
| SEO Codes: | 97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 80% 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 20% |
| Downloads: |
Total: 1 |
| More Statistics |
Actions (Repository Staff Only)
 |
Item Control Page |