Mixing with Intermittent Jets with Application in Handling Radioactive Waste Sludges
This document presents the results of theoretical and experimental studies undertaken to establish a methodology for performing reduced-scale mixing tests with intermittent jet mixing systems in non-Newtonian fluids. A theoretical model for mixing cavern formation from steady and pulsed jets is developed and compared with data from single mixing jet tests in a non-Newtonian simulant. Scaling laws are proposed based on the modeling and dimensional analysis. Experimental validation of the scaling laws performed. Tests were conducted at three scales using two non-Newtonian simulants. The key similarity parameters were found to be the non-dimension jet frequency, the yield Reynolds number, and the jet Reynolds number. The validated scaling laws provided the basis for reduced-scale testing of plant-scale mixing systems. In this article, only the initial results for a single jet and the developed model and scaling laws will be discussed.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 912502
- Report Number(s):
- PNWD-SA-7637; TRN: US0800445
- Journal Information:
- Chemical Engineering Research & Design, 85(A5):691-696, Vol. 85, Issue A5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Scaling Laws for Reduced-Scale Tests of Pulse Jet Mixing Systems in Non-Newtonian Slurries: Gas Retention and Release Behavior
Implications of Upwells as Hydrodynamic Jets in a Pulse Jet Mixed System