Possibility of equation of variable-mass motion to describe the motion of non-Newtonian fluids

Authors

  • Денис Валерійович Колесніков Academy of Fire safety n.a.Chernobyl Heroes Onoprienko str., apt.119, Cherkassy,18034, Ukraine
  • Олег Михайлович Яхно National Technical University of Ukraine "Kyiv Polytechnic Institute" Peremogy Ave, 37, building 1, room 255, Kiev, 03056, Ukraine
  • Наталія Валеріївна Семінська National Technical University of Ukraine "Kyiv Polytechnic Institute" Peremogy Ave, 37, building 1, room 255, Kiev, 03056, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.14820

Keywords:

Pipeline, variable mass, non-Newtonian fluid, destabilization, local resistance, transit expense

Abstract

Introduction. Tasks related to method of calculation of viscid and  anomalously-viscid liquids with mass (or by an expense),  changing on length development are widely used in many areas  of  industry.

The unsteady-state  processes  of the  plumbings  systems, irrigation, systems used  in a fire technique, as a rule determine  their  work  and  reliability  in the exploitation conditions. However such processes  can reason the equipment work destabilization and ground of  calculation parameters  systems  problem that provides reliability of work actual.

Research aim is  unsteady-state motion  of  viscid  liquids  in  pressure  pipelines  and  systems with a variable on length by mass of liquid calculation  methods   generalization .

Outputs.

Based on a reduced equation expressions pressure characterizing change on length for two cases are received:

- absence of the transit expenditure ():

- presence of the transit expenditure

 which   check on the experimental bench, allowed to set that in case of order 100-300 Reynolds numbers essential influence of destabilization of a flow is absent. Thus, application   equation of   variable-mass motion   in this case is lawful. As researched liquids water solution of glycerin (the Newtonian liquid) and solutions by carbon methyl cellulose CMC (2%, 4%) were used

Author Biographies

Денис Валерійович Колесніков, Academy of Fire safety n.a.Chernobyl Heroes Onoprienko str., apt.119, Cherkassy,18034

Ph.D.

automatic systems of safety and electroinstallations chair 

Олег Михайлович Яхно, National Technical University of Ukraine "Kyiv Polytechnic Institute" Peremogy Ave, 37, building 1, room 255, Kiev, 03056

Doctor of Technical Sciences, Professor

Head of the Department

Department of applied fluid mechanics and mechatronics

Наталія Валеріївна Семінська, National Technical University of Ukraine "Kyiv Polytechnic Institute" Peremogy Ave, 37, building 1, room 255, Kiev, 03056

PhD, Associate Professor

Department of applied fluid mechanics and mechatronics

 

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Published

2013-06-20

How to Cite

Колесніков, Д. В., Яхно, О. М., & Семінська, Н. В. (2013). Possibility of equation of variable-mass motion to describe the motion of non-Newtonian fluids. Eastern-European Journal of Enterprise Technologies, 3(7(63), 28–32. https://doi.org/10.15587/1729-4061.2013.14820

Issue

Section

Applied mechanics