AP23486543 " Modeling of turbulent flow and heat transfer of a high-viscosity fluid with anti-turbulence additives "
Relevance
The development of mathematical and numerical models for the turbulent motion and heat exchange of highly viscous oil with anti-turbulent additives will reduce energy costs when transporting oil over long distances.
Purpose
Modeling and creation of a methodology for calculating the turbulent motion and heat exchange of high-viscosity oil with an anti-turbulent additive
Expected and achieved results
1. A detailed analysis of five turbulence models used to describe turbulent motion with a polymer additive has been carried out, including the algebraic Reynolds stress model (ARSM), the complete Reynolds stress model (RSM), the large vortex model (LES), and the model for calculating unsteady Navier-Stokes equations (DNS). 2. The rheological model of a viscoelastic Peterlin liquid (FENE-P) describing the elastic stretching of polymer molecules and their interaction with a highly viscous liquid flow is analyzed. 3. The problem of turbulent motion and heat exchange of a highly viscous liquid with an anti-turbulent additive in a pipe is formulated using the improved turbulence model for FENE-P liquids, proven for various resistance reduction modes. 4. Boundary conditions for the wall are established, assuming no sliding, and initial values for all key parameters, including velocity, turbulent kinetic energy, and conformation tensor. 5. The solution of the system of equations of turbulent motion and heat exchange of a highly viscous liquid with a polymer additive is performed using the SIMPLE algorithm and the control volume method on a structured grid with specified parameters.
Research team members with their identifiers (Scopus Author ID, Researcher ID, ORCID, if available) and links to relevant profiles
Scientific supervisor - Uzak Kairbekovich Zhapbasbayev
List of publications with links to them
Pakhomov M. A., Zhapbasbayev U. K. RANS predictions of turbulent non-isothermal viscoplastic fluid in pipe with sudden expansion //Journal of Non-Newtonian Fluid Mechanics. – 2024. – Т. 334. – С. 105329.