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 104
- Downloads 0
Model of motion of small radial space tetheredsystem by the action of aerodynamic moment
The possibility of using the electrodynamic space tethered systems (EDSTS) for deorbiting the space debris is currently being studied extensively. However, a preliminary analysis demonstrated the instability of a radial...
Estimation of track conditions on misalignment of rail lines using data of dynamic performance tests of freight cars
А method of а qualitative assessment of the distorted rail lines of the railway track portions is proposed us-ing the results of dynamic running tests of freight cars. In the research methods of mathematical modeling and...
Estimated stability of magnetically levitated motion of transportation superconducting-magnet system vehicle along a plane track structure
A magnetically levitated motion of the vehicle of an electrodynamic system with a plane track structure can be realized in the systems with two or four lines of the track contours as illustrated by studies. Based on the...
Determination of parameters of cavitation self-oscillation in hydraulic system under simultaneous longitudinal oscillation of pipe structure and fluid
The paper deals simultaneous longitudinal oscillation of feed pipes of liquid rocket engines (LRE) and flu-ids. Cavities, normally occurring in operations of LRE pumps, can result in self-excited low-frequency of the flu...
Analytical solution of problem on fall of sphere the radius of which decreases from linear-fractional law
The paper deals with building a mathematical model of motion of the sphere with variable radius and mass. The analytical method for solving the Cauchy problem for a nonlinear equation of motion with variable coeffi-cien...