https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43750 Wed 28 Sep 2022 12:07:42 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44980 Wed 26 Oct 2022 08:53:25 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50872 50%. Over the range of tested conditions, the critical BSL value was appeared to be insensitive to particle size but increased as Re increased. The diminishing bubble surface mobility is believed to be responsible for the observed trend. Further, a drag modification factor as a function of BSL and Reynolds number has been developed. Noticeably, the drag coefficient curves peaked at the corresponding critical BSL values. The drag modification factor may prove to be useful in modelling of the particle separation processes.]]> Wed 16 Aug 2023 11:05:24 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17143 Wed 11 Apr 2018 15:39:34 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:55091 Wed 10 Apr 2024 08:37:48 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46033 Tue 12 Mar 2024 18:50:24 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46747 Tue 09 Jan 2024 11:43:13 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50672 Tue 01 Aug 2023 14:44:49 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34781 Thu 30 Jan 2020 13:46:08 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39151 K₁ for the overall collision efficiency, was found to be optimum at the lower turbulence intensity of 4%. A maximum bubble surface loading, 0.142 was determined by fitting the model-predicted bubble velocity with available experimental data. With this maximum bubble surface loading constraint, the recovery model predicted two regimes namely a loading regime in the early flotation period and a saturated regime wherein the bubble loading capability was entirely exhausted. Simulation of a batch flotation system suggested that loss in bubble surface loading capacity occurred faster in a dense pulp compared to a dilute pulp system and the predicted recovery decreased with increasing solids concentration for the same gas volume fraction. Similar to the collision efficiency, the optimum recovery was obtained at Ti = 4%. Further, the model predicted recovery was compared to a lab scale coal flotation test and reasonable agreement was obtained.]]> Thu 19 May 2022 15:47:37 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51070 Thu 17 Aug 2023 10:22:44 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43290 Thu 15 Sep 2022 12:44:32 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43250 Thu 15 Sep 2022 10:24:32 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27517 Thu 13 Sep 2018 16:49:08 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40303 Thu 07 Jul 2022 16:00:38 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42714 Thu 01 Sep 2022 11:33:33 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:31343 Sat 24 Mar 2018 08:44:38 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:31513 Sat 24 Mar 2018 08:44:17 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:13556 Sat 24 Mar 2018 08:17:06 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27090 Sat 24 Mar 2018 07:40:35 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26571 Sat 24 Mar 2018 07:26:11 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25045 Sat 24 Mar 2018 07:10:45 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48814 Mon 10 Apr 2023 10:21:49 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45801 Mon 07 Nov 2022 09:58:02 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:35930 b = 2.70 and 3.52 mm) rise using the non-intrusive two-dimensional (2D) particle image velocimetry (PIV) at the low Taylor-Reynolds number (Re_λ) ranging from 12 to 60. Using the measured PIV velocity data, the instantaneous pressure fluctuations were estimated by integrating the full viscous form of the Navier-Stokes (N-S) equation and compared with three dimensional (3D) computational fluid dynamics (CFD) simulations. A spectral slope of -7/3 was found in the inertial subrange of the single-phase pressure spectrum. In contrast, the two-phase pressure spectrum exhibited a slope less steep than -7/3 in the inertial subrange because of the extra production of turbulence in the presence of bubble. For single-phase flow, the ratio of pressure integral length scale to the velocity integral length scale (L_p/L) was found to be a constant of about 0.67, and the pressure Taylor microscale (λ_p) was approximately 0.79 ± 0.03 of the velocity Taylor microscale (λ) for a low Reynolds number. The scaling ratio based on the single-phase experimental results were compared with existing theory and DNS results and found to accord well; however, these ratios deviate from theoretical values for two-phase flow. Also, the energy dissipation rate was evaluated based on the pressure spectrum and found the over-predicted (~ 31%) values relative to those calculated from the velocity spectrum.]]> Fri 19 Jun 2020 14:48:42 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39733 Fri 17 Jun 2022 17:59:03 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:47341 Fri 13 Jan 2023 12:16:37 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:49425 Fri 12 May 2023 15:09:22 AEST ]]>