a reverse flow; the movement (of a liquid) in the opposite direction to its previous, natural or intended direction
backflow in American English
(ˈbækˌflou)
noun
a flow of a liquid opposite to the usual or desired direction
Word origin
[1880–85; back2 + flow]This word is first recorded in the period 1880–85. Other words that entered Englishat around the same time include: Chief of Staff, barnstorm, interface, quotation mark, regionalism
Examples of 'backflow' in a sentence
backflow
Flat axial grooves in front of the impeller break the swirl of the near-casing backflow.
P. Pérez Flores, G. Kosyna, D. Wulff 2008, 'Suppression of Performance Curve Instability of an Axial-Flow Pump by Using a Double-Inlet-Nozzle',International Journal of Rotating Machineryhttp://dx.doi.org/10.1155/2008/536850. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Magnetic resonance images were acquired using sequences to quantify volume delivered, distributed, and backflow.
Martin L. Brady, King Scott Coffield, Thomas J. Kuehl, Raghu Raghavan, V. O. Speights,Belur Patel, Scott Wilson, Mike Wilson, Rick M. Odland 2018, 'A pilot study in intraparenchymal therapy delivery in the prostate: a comparison ofdelivery with a porous needle vs standard needle', BMC Urologyhttp://link.springer.com/article/10.1186/s12894-018-0378-8. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This improves describing the backflow region, which takes place close to the wall region.
Amjad Asad, Christoph Kratzsch, Rüdiger Schwarze 2017, 'Influence of drag closures and inlet conditions on bubble dynamics and flow behaviorinside a bubble column', Engineering Applications of Computational Fluid Mechanicshttp://dx.doi.org/10.1080/19942060.2016.1249410. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Moreover, the complications, which arise due to pyelointerstitial backflow, are prevented.
Gyanendra Sharma, Vinayak Chitale, Rajgopal Karva, Anshu Sharma, Abdul Bari Durug 2008, 'Fluoroscopy guided instillation therapy in chyluria using combination of povidoneiodine with contrast agent: is a single instillation sufficient?', International Brazilian Journal of Urologyhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382008000300003. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Two empirical expressions, relating to backflow region length and energy loss coefficient, respectively, were presented.
Ai Wanzheng 2015, 'Energy dissipation characteristics of sharp-edged orifice plate', Advances in Mechanical Engineeringhttp://ade.sagepub.com/content/7/8/1687814015595571.full.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Compounding factors such as other flood sources and stream backflow could have caused this discrepancy.
C. C. Abon, C. P. C. David, N. E. B. Pellejera 2011, 'Reconstructing the Tropical Storm Ketsana flood event in Marikina River, Philippines',Hydrology and Earth System Scienceshttp://www.hydrol-earth-syst-sci.net/15/1283/2011/hess-15-1283-2011.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We observed dermal backflow around the mass, which indicated lymphatic dysfunction.
Hisako Hara, Makoto Mihara, Kyoko Hasegawa, Kazuko Yamanaka 2016, 'Lymphatic dysfunction after ligation surgery for varicose vein', SAGE Open Medical Case Reportshttps://doi.org/10.1177/2050313X16672154. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Based on the characteristics of backflow, a two-dimensional mathematical model of sediment movement was established.
Yong Fan 2009, 'Application of 2-D sediment model to fluctuating backwater area of Yangtze River',Water Science and Engineeringhttp://www.sciencedirect.com/science/article/pii/S1674237015300739. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Additionally, some outlets were equipped with floating-ball check valves to avoid backflow.
Tadeusz Nawrot, Radosław Matz, Ryszard Błażejewski, Marcin Spychała 2018, 'A Case Study of a Small Diameter Gravity Sewerage System in Zolkiewka Commune, Poland',Waterhttp://www.mdpi.com/2073-4441/10/10/1358. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)