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Publikācija: Analysis of Non-Stationary Flow Interaction with Simple Form Objects

Publication Type Scientific article indexed in SCOPUS or WOS database
Funding for basic activity State funding for education
Defending: ,
Publication language English (en)
Title in original language Analysis of Non-Stationary Flow Interaction with Simple Form Objects
Field of research 2. Engineering and technology
Sub-field of research 2.3 Mechanical engineering
Research platform Energy and Environment
Authors Shravan Koundinya Vutukuru
Jānis Vība
Mārtiņš Irbe
Igors Tipāns
Keywords degree of freedom, energy, fluid interaction, mathematical modelling, flow parameters, rigid body
Abstract The paper is devoted to the analysis of a non-stationary rigid body interaction in a fluid flow. Initially, an approximate method for determining the forces due to fluid interaction with the rigid body is offered. For this purpose, the plane movement of a mechanical system with an infinite DOF (degrees of freedom) is reduced to 5 DOF motion: 3 DOF for the body and 2 DOF for the areas of compression and vacuum in fluid flow. Differential equations of non-stationary motion are formed by the laws of classical mechanics. The use of an approximate method has been quantified by computer modelling. The average difference in results was found to be small (< 5%). The analysis of the fluid (air) interaction is carried out for a rigid body of two simple geometries -flat plate and diamond. The results obtained are used to refine the parameters of the proposed approximate method that is addressed in the present study for fluid interaction with the non-stationary rigid body. Theoretical results obtained in the final section are used in the analysis of the movement of prismatic bodies in order to obtain energy from the fluid flow.
DOI: 10.15159/AR.19.083
Hyperlink: https://dspace.emu.ee/xmlui/handle/10492/4796 
Reference Vutukuru, S., Vība, J., Irbe, M., Tipāns, I. Analysis of Non-Stationary Flow Interaction with Simple Form Objects. Agronomy Research, 2019, Vol.17, Special Iss.1, pp.1227-1234. ISSN 1406-894X. Available from: doi:10.15159/AR.19.083
Additional information Citation count:
ID 29227