A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Initial stages of a three dimensional dam break flow
https://orcid.org/0000-0002-4474-2861
https://orcid.org/0000-0002-1727-9461
https://orcid.org/0000-0003-2159-1922
Abstract Short time behavior of a three dimensional, gravity-driven free surface flow is studied analytically and numerically. Initially the fluid is at rest, held by a vertical wall. A rectangular section of the wall suddenly disappears and the gravity driven three-dimensional flow starts. In order to describe the flow in the early stage, the potential theory is employed. Viscous effects are ignored for small times. The leading order problem is solved by using the Fourier series method and an integral equation method. Local analysis of the flow field close to the side edges of the rectangular section reveals a square root singularity. The flow velocity is also log-singular at the bottom edge of the rectangular section. In the limiting case, as the width of the rectangular section approaches infinity, the results of the classical two-dimensional dam break flow are recovered. Three dimensional effects become important closer to the side edges of the rectangular section.
Initial stages of a three dimensional dam break flow
https://orcid.org/0000-0002-4474-2861
https://orcid.org/0000-0002-1727-9461
https://orcid.org/0000-0003-2159-1922
Abstract Short time behavior of a three dimensional, gravity-driven free surface flow is studied analytically and numerically. Initially the fluid is at rest, held by a vertical wall. A rectangular section of the wall suddenly disappears and the gravity driven three-dimensional flow starts. In order to describe the flow in the early stage, the potential theory is employed. Viscous effects are ignored for small times. The leading order problem is solved by using the Fourier series method and an integral equation method. Local analysis of the flow field close to the side edges of the rectangular section reveals a square root singularity. The flow velocity is also log-singular at the bottom edge of the rectangular section. In the limiting case, as the width of the rectangular section approaches infinity, the results of the classical two-dimensional dam break flow are recovered. Three dimensional effects become important closer to the side edges of the rectangular section.
Initial stages of a three dimensional dam break flow
https://orcid.org/0000-0002-4474-2861
https://orcid.org/0000-0002-1727-9461
https://orcid.org/0000-0003-2159-1922
Abstract Short time behavior of a three dimensional, gravity-driven free surface flow is studied analytically and numerically. Initially the fluid is at rest, held by a vertical wall. A rectangular section of the wall suddenly disappears and the gravity driven three-dimensional flow starts. In order to describe the flow in the early stage, the potential theory is employed. Viscous effects are ignored for small times. The leading order problem is solved by using the Fourier series method and an integral equation method. Local analysis of the flow field close to the side edges of the rectangular section reveals a square root singularity. The flow velocity is also log-singular at the bottom edge of the rectangular section. In the limiting case, as the width of the rectangular section approaches infinity, the results of the classical two-dimensional dam break flow are recovered. Three dimensional effects become important closer to the side edges of the rectangular section.
Initial stages of a three dimensional dam break flow
Fetahu, Elona (author) / Ivanyshyn Yaman, Olha (author) / Yilmaz, Oguz (author)
Applied Ocean Research ; 127
2022-08-18
Article (Journal)
Electronic Resource
English
The initial stages of dam-break flow
| Tema Archive | 1998
Numerical modeling of the initial stages of dam-break waves
| British Library Online Contents | 2004
A three dimensional dam break flow: Small time behavior
| Elsevier | 2021
Initial stage of two-dimensional dam-break waves: laboratory versus VOF
| Online Contents | 2012