A model of impeller whirl for baffled mixing vessels. (April 2015)
- Record Type:
- Journal Article
- Title:
- A model of impeller whirl for baffled mixing vessels. (April 2015)
- Main Title:
- A model of impeller whirl for baffled mixing vessels
- Authors:
- Cudmore, G.C.
Holloway, A.G.L.
Gerber, A.G. - Abstract:
- Abstract: A model of impeller whirl that provides stability limits and mean square radial deflections for industrial mixing vessels is introduced. The model has a linear form and includes contributions to the mass, damping, and stiffness that arise from fluid forces acting on the impeller. The fluid forces were derived from Large Eddy Simulation (LES) of a mixer with a pitched blade impeller rotating at speed N, and undergoing prescribed circular orbits of frequency Ω . Simulations were performed for Reynolds numbers, 10 ≤ Re ≤ 10 000, and subsynchronous whirl frequency ratios, − 1 ≤ Ω / 2 π N ≤ 1 . Model predictions of impeller whirl instability and mean square vibration amplitude were compared to experimental data from a laboratory scale mixer. The simplicity and economy of the new model allows its use in on-line diagnostics and operational planning.
- Is Part Of:
- Journal of fluids and structures. Volume 54(2015:Apr.)
- Journal:
- Journal of fluids and structures
- Issue:
- Volume 54(2015:Apr.)
- Issue Display:
- Volume 54 (2015)
- Year:
- 2015
- Volume:
- 54
- Issue Sort Value:
- 2015-0054-0000-0000
- Page Start:
- 719
- Page End:
- 742
- Publication Date:
- 2015-04
- Subjects:
- Mixing vessel -- Pitched blade impeller -- Whirl -- Computational fluid dynamics -- Linear stochastic model -- Fluid added coefficients
Fluid-structure interaction -- Periodicals
Fluid mechanics -- Periodicals
Structural dynamics -- Periodicals
Structural analysis (Engineering) -- Periodicals
620.106 - Journal URLs:
- http://www.sciencedirect.com/science/journal/08899746 ↗
http://www.idealibrary.com ↗
http://firstsearch.oclc.org ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.jfluidstructs.2015.01.010 ↗
- Languages:
- English
- ISSNs:
- 0889-9746
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4984.510000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 7264.xml