Technique for the computational determination of the hydraulic resistance of a gas-dispersed flow
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2017, Vol 4, Issue 4
Abstract
The aim of this work is to determine the hydraulic resistance of a gas-dispersed flow in a horizontal channel with a minimum of empirical data. Assuming the gas-dispersed flow energy balance as a sum of two terms: the carrier gas energy and the particle energy, a relation for hydraulic resistance determination in Gasterstadt’s form is obtained. To find the particle drag and relative velocity appearing in this relation, use is made of the results of a numerical solution of the problem of the motion of particles in a horizontal channel in Lagrangian variables with account for the interaction of the particles with the channel walls and with one another. The effect of the particles on the carrier gas parameters is neglected. A verification of the proposed technique using various empirical rela-tionships reported in the literature has shown that the calculated and the experimental results are in satisfactory agreement. The proposed technique may be used in the development and design of engineering systems with gas-dispersed flows.
Authors and Affiliations
V. Tymoshenko, Ju. Knyshenko
Keywords
Related Articles
- EP ID EP348142
- DOI -
- Views 74
- Downloads 0
Semiempirical technique for determining coefficient of liquid inertia resistance due to inverse flows at inlet of centrifugal inclined Archimedean screw pump
The paper deals with return flows at inlet of centrifugal inclined Archimedean screw pumps of liquid rocket propulsions (LRP) affecting the LRP dynamic characteristics. At present experimental dependencies of fluid oscil...
Selection and validation of rational method of improvement in effectiveness of anti-riot water can-nons
The choice of a rational method for improving the effectiveness and safety of anti-riot water cannons with long-range streams of the dispersed water and water solutions is grounded. The utility of the hydraulic pulse dis...
Chemical and explosion- fire safety of spillage of propellant components at launching rocket com-plees
It is shown that the improvement of chemical and explosion-fire safety of spillage of propellant components due to accidents at the launching complexes during the launch preparation is provided by dispersed flows of th...
Numerical analysis of stresses of bone and implant system of hip joint acetabulum
Hip replacement has need for an analysis of biomechanics of components of a prosthetic implant after a surgical procedure. Studies of the behavior of the bone-implant system with methods of a mathematical analysis are ur...
Sound suppressors for small arms with annular expansion chamber
The paper deals with information about sound suppressors for small arms when an annular expansion chamber and two-point mounting attached to the firearm barrel are used. Those patented designs are examined, as from 1910...