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Wang J, Jin Q, Zhang Y, Fang H, Xia H. Reducing the membrane fouling in cross-flow filtration using a facile fluidic oscillator. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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2
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Clark AS, San-Miguel A. A bioinspired, passive microfluidic lobe filtration system. LAB ON A CHIP 2021; 21:3762-3774. [PMID: 34581374 PMCID: PMC8486309 DOI: 10.1039/d1lc00449b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Size-based microfluidic filtration systems can be affected by clogging, which prevents their use in high-throughput and continuous applications. To address these concerns, we have developed two microfluidic lobe filters bioinspired by the filtration mechanism of two species of manta ray. These chips enable filtration of particles around 10-30 μm with precise control and high throughput by using two arrays of equally spaced filter lobes. For each filter design, we investigated multiple inlet flow rates and particle sizes to identify successful operational parameters. Filtration efficiency increases with fluid flow rate, suggesting that particle inertial effects play a key role in lobe filter separation. Microparticle filtration efficiencies up to 99% were obtainable with inlet flow rates of 20 mL min-1. Each filter design successfully increased microparticle concentrations by a factor of two or greater at different inlet flow rates ranging from 6-16 mL min-1. At higher inlet flow rates, ANSYS Fluent simulations of each device revealed a complex velocity profile that contains three local maxima and two inflection points. Ultimately, we show that distances from the lobe array to the closest local maxima and inflection point of the velocity profile can be used to successfully estimate lobe filtration efficiency at each operational flow rate.
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Affiliation(s)
- Andrew S Clark
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA.
| | - Adriana San-Miguel
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA.
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Optimizing Flux Capacity of Dead-end Filtration Membranes by Controlling Flow with Pulse Width Modulated Periodic Backflush. Sci Rep 2020; 10:896. [PMID: 31964959 PMCID: PMC6972749 DOI: 10.1038/s41598-020-57649-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 12/23/2019] [Indexed: 11/08/2022] Open
Abstract
Standard dead-end sample filtration is used to improve sample purity, but is limited as particle build-up fouls the filter, leading to reduced recovery. The fouling layer can be periodically cleared with backflush algorithms applied through a customized fluidic actuator using variable duty cycles, significantly improving particulate recovery percentage. We show a Pulse Width Modulation (PWM) process can periodically backflush the filter membrane to repeatedly interrupt cake formation and reintegrate the fouling layer into the sample, improving net permeate flux per unit volume of sample by partially restoring filter flux capacity. PWM flow for 2.19 um (targeted) and 7.32 um (untargeted) polystyrene microbeads produced 18-fold higher permeate concentration, higher recovery up to 68.5%, and an 8-fold enrichment increase, compared to a uniform flow. As the duty cycle approaches 50%, the recovery percentage monotonically increases after a critical threshold. Further, we developed and validated a mathematical model to determine that fast, small-volume backflush pulses near 50% duty cycle yield higher recovery by decreasing fouling associated with the cake layer. Optimized PWM flow was then used to purify custom particles for immune activation, achieving 3-fold higher recovery percentage and providing a new route to improve purification yields for diagnostic and cellular applications.
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4
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Liang Y, Fimbres Weihs G, Wiley D. Comparison of oscillating flow and slip velocity mass transfer enhancement in spacer-filled membrane channels: CFD analysis and validation. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117433] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Liang Y, Fimbres Weihs G, Fletcher D. CFD study of the effect of unsteady slip velocity waveform on shear stress in membrane systems. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.07.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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A Radial Pillar Device (RAPID) for continuous and high-throughput separation of multi-sized particles. Biomed Microdevices 2017; 20:6. [DOI: 10.1007/s10544-017-0246-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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A comparison of microfiltration and inertia-based microfluidics for large scale suspension separation. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.09.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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8
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Ameur H, Sahel D. Effect of the baffle design and orientation on the efficiency of a membrane tube. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2016.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Benet E, Vernerey FJ. Mechanics and stability of vesicles and droplets in confined spaces. Phys Rev E 2016; 94:062613. [PMID: 28085314 DOI: 10.1103/physreve.94.062613] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Indexed: 12/16/2022]
Abstract
The permeation and trapping of soft colloidal particles in the confined space of porous media are of critical importance in cell migration studies, design of drug delivery vehicles, and colloid separation devices. Our current understanding of these processes is however limited by the lack of quantitative models that can relate how the elasticity, size, and adhesion properties of the vesicle-pore complex affect colloid transport. We address this shortcoming by introducing a semianalytical model that predicts the equilibrium shapes of a soft vesicle driven by pressure in a narrow pore. Using this approach, the problem is recast in terms of pressure and energy diagrams that characterize the vesicle stability and permeation pressures in different conditions. We particularly show that the critical permeation pressure for a vesicle arises from a compromise between the critical entry pressure and exit pressure, both of which are sensitive to geometrical features, mechanics, and adhesion. We further find that these results can be leveraged to rationally design microfluidic devices and diodes that can help characterize, select, and separate colloids based on physical properties.
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Affiliation(s)
- Eduard Benet
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado 80309-0427, USA
| | - Franck J Vernerey
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado 80309-0427, USA
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10
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Ray MS. Adsorptive and Membrane-Type Separations: A Bibliographical Update (1998). ADSORPT SCI TECHNOL 2016. [DOI: 10.1177/026361749901700307] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Martyn S. Ray
- School of Chemical Engineering, Curtin University of Technology. GPO Box U1987. Perth 6845, Western Australia
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11
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Liang Y, Fimbres Weihs G, Wiley D. CFD modelling of electro-osmotic permeate flux enhancement in spacer-filled membrane channels. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.02.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Liang YY, Fimbres Weihs G, Setiawan R, Wiley D. CFD modelling of unsteady electro-osmotic permeate flux enhancement in membrane systems. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2016.02.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Yoon Y, Kim S, Lee J, Choi J, Kim RK, Lee SJ, Sul O, Lee SB. Clogging-free microfluidics for continuous size-based separation of microparticles. Sci Rep 2016; 6:26531. [PMID: 27198601 PMCID: PMC4873827 DOI: 10.1038/srep26531] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 05/03/2016] [Indexed: 01/17/2023] Open
Abstract
In microfluidic filtration systems, one of the leading obstacles to efficient, continuous operation is clogging of the filters. Here, we introduce a lateral flow microfluidic sieving (μ-sieving) technique to overcome clogging and to allow continuous operation of filter based microfluidic separation. A low frequency mechanical oscillation was added to the fluid flow, which made possible the release of aggregated unwanted polystyrene (PS) particles trapped between the larger target PS particles in the filter demonstrating continuous μ-sieving operation. We achieved collection of the target PS particles with 100% separation efficiency. Also, on average, more than 98% of the filtered target particles were retrieved after the filtration showing high retrieval rates. Since the oscillation was applied to the fluid but not to the microfluidic filter system, mechanical stresses to the system was minimized and no additional fabrication procedures were necessary. We also applied the μ-sieving technique to the separation of cancer cells (MDA-MB-231) from whole blood and showed that the fluidic oscillations prevented the filters from being blocked by the filtered cancer cells allowing continuous microfluidic separation with high efficiency.
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Affiliation(s)
- Yousang Yoon
- Department of Electronic Engineering, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Seonil Kim
- Department of Electronic Engineering, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Jusin Lee
- Department of Electronic Engineering, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Jaewoong Choi
- Department of Electronic Engineering, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Rae-Kwon Kim
- Department of Life Science and Research Institute for Natural Sciences, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Su-Jae Lee
- Department of Life Science and Research Institute for Natural Sciences, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Onejae Sul
- Institute of Nano Science and Technology, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Seung-Beck Lee
- Department of Electronic Engineering, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea.,Institute of Nano Science and Technology, Hanyang Universtiy, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
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Ratnayake P, Setiawan R, Bao J, Fimbres-Weihs G, Wiley DE. Spatio-temporal frequency response analysis of forced slip velocity effect on solute concentration oscillations in a reverse osmosis membrane channel. Comput Chem Eng 2016. [DOI: 10.1016/j.compchemeng.2015.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Meireles M, Prat M, Estachy G. Analytical modeling of steady-state filtration process in an automatic self-cleaning filter. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2015.04.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Setiawan R, Ratnayake P, Bao J, Fimbres Weihs GA, Wiley DE. Reduced-order model for the analysis of mass transfer enhancement in membrane channel using electro-osmosis. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2014.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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McFaul SM, Lin BK, Ma H. Cell separation based on size and deformability using microfluidic funnel ratchets. LAB ON A CHIP 2012; 12:2369-76. [PMID: 22517056 DOI: 10.1039/c2lc21045b] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The separation of biological cells by filtration through microstructured constrictions is limited by unpredictable variations of the filter hydrodynamic resistance as cells accumulate in the microstructure. Applying a reverse flow to unclog the filter will undo the separation and reduce filter selectivity because of the reversibility of low-Reynolds number flow. We introduce a microfluidic structural ratchet mechanism to separate cells using oscillatory flow. Using model cells and microparticles, we confirmed the ability of this mechanism to sort and separate cells and particles based on size and deformability. We further demonstrate that the spatial distribution of cells after sorting is repeatable and that the separation process is irreversible. This mechanism can be applied generally to separate cells that differ based on size and deformability.
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Affiliation(s)
- Sarah M McFaul
- Department of Mechanical Engineering, University of British Columbia, Vancouver, BC, Canada
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18
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Ahmed S, Seraji MT, Jahedi J, Hashib M. Application of CFD for simulation of a baffled tubular membrane. Chem Eng Res Des 2012. [DOI: 10.1016/j.cherd.2011.08.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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19
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Cortés-Juan F, Balannec B, Renouard T. CFD-assisted design improvement of a bench-scale nanofiltration cell. Sep Purif Technol 2011. [DOI: 10.1016/j.seppur.2011.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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20
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Olayiwola B, Walzel P. Effects of in-phase oscillation of retentate and filtrate in crossflow filtration at low Reynolds number. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Liu Y, He G, Liu X, Xiao G, Li B. CFD simulations of turbulent flow in baffle-filled membrane tubes. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2009.02.022] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Smith JC, Sanderson SL. Intra-oral flow patterns and speeds in a suspension-feeding fish with gill rakers removed versus intact. THE BIOLOGICAL BULLETIN 2008; 215:309-318. [PMID: 19098151 DOI: 10.2307/25470714] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Oreochromis aureus, a species of tilapia, is a suspension-feeding fish that employs a pumping action to bring water into its mouth for filtering.To address questions about water flow inside the mouth, we used a microthermistor flow probe to determine the speed of intra-oral flow during suspension feeding in this species before and after surgical removal of gill rakers. Synchronization with high-speed external videotapes of the fish and high-speed video endoscopy inside the oropharyngeal cavity allowed the first correlation of oral actions with intra-oral flow patterns and speeds during feeding. This analysis established the occurrence of a brief reversal of flow ( approximately 80-ms duration) from posterior to anterior in the oropharyngeal cavity prior to every feeding pump (250-500-ms duration). In industrial crossflow filtration, oscillating or pulsatile flow increases filtration performance by enhancing the back-migration of particles from the region near the filter surface to the bulk flow region, thus reducing particle accumulation that can clog the filter. In endoscopic videotapes, these pre-pump reversals, as well as post-pump reversals ( approximately 500-ms duration), were observed to lift mucus and particles from the branchial arches for subsequent transport toward the esophagus. Intra-oral flow speeds were reduced markedly after removal of the gill rakers. We hypothesize that the decrease in crossflow speed during feeding pumps following the removal of gill rakers and mucus could be due to increased loss of water between the anterior branchial arches.
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Affiliation(s)
- Jennifer C Smith
- Department of Biology, College of William and Mary, P.O. Box 8795, Williamsburg, Virginia 23187-8795, USA
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24
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Alexiadis A, Bao J, Fletcher DF, Wiley DE, Clements DJ. Analysis of the Dynamic Response of a Reverse Osmosis Membrane to Time-Dependent Transmembrane Pressure Variation. Ind Eng Chem Res 2005. [DOI: 10.1021/ie050290y] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Alexiadis
- School of Chemical Engineering and Industrial Chemistry and School of Electrical Engineering and Telecommunications, The University of New South Wales, High Street, Sydney NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Paramatta Road, Sydney NSW 2006, Australia
| | - J. Bao
- School of Chemical Engineering and Industrial Chemistry and School of Electrical Engineering and Telecommunications, The University of New South Wales, High Street, Sydney NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Paramatta Road, Sydney NSW 2006, Australia
| | - D. F. Fletcher
- School of Chemical Engineering and Industrial Chemistry and School of Electrical Engineering and Telecommunications, The University of New South Wales, High Street, Sydney NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Paramatta Road, Sydney NSW 2006, Australia
| | - D. E. Wiley
- School of Chemical Engineering and Industrial Chemistry and School of Electrical Engineering and Telecommunications, The University of New South Wales, High Street, Sydney NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Paramatta Road, Sydney NSW 2006, Australia
| | - D. J. Clements
- School of Chemical Engineering and Industrial Chemistry and School of Electrical Engineering and Telecommunications, The University of New South Wales, High Street, Sydney NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Paramatta Road, Sydney NSW 2006, Australia
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Schwinge J, Wiley DE, Fletcher DF. Simulation of Unsteady Flow and Vortex Shedding for Narrow Spacer-Filled Channels. Ind Eng Chem Res 2003. [DOI: 10.1021/ie030211n] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. Schwinge
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - D. E. Wiley
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - D. F. Fletcher
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Chemical Engineering, The University of Sydney, Sydney, NSW 2006, Australia
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Experimental Studies of Collapsible Tubes. FLOW PAST HIGHLY COMPLIANT BOUNDARIES AND IN COLLAPSIBLE TUBES 2003. [DOI: 10.1007/978-94-017-0415-1_3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Laitinen N, Michaud D, Piquet C, Teilleria N, Luonsi A, Levänen E, Nyström M. Effect of filtration conditions and backflushing on ceramic membrane ultrafiltration of board industry wastewaters. Sep Purif Technol 2001. [DOI: 10.1016/s1383-5866(01)00134-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Flux enhancement in turbulent crossflow microfiltration of yeast using a collapsible-tube pulsation generator. J Memb Sci 1999. [DOI: 10.1016/s0376-7388(99)00161-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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