EQUATION OF ENERGY BALANCE FOR TURBULENT FLUCTUATIONS IN THE THEORY OF A FREE TURBULENT BOUNDARY LAYER

Semiempirical formulas are proposed for the coefficient of turbulent viscosity and the scale of turbulence which appear in the system of equations of a free turbulent boundary layer in an incompressible fluid where this system includes equations of continuity, motion, and balance of the average energy of turbulent pulsations. An advantage of this formula over others is that the two empirical constants which are a part of the system of equations have close values for circular and plane turbulent jets, and also for a turbulent boundary layer on the edge of a semi-infinite uniform flow with a stationary fluid. The distributions of average velocity and average energy of turbulent fluctuations calculated in the work agree satisfactorily with experimental data.

• Authors:
  • Akatnov, N I
  • Kuznetsov, A P
• Publication Date: 1970-11

Media Info

• Pagination: p. 75-79
• Serial:
  • Mekhanika Zhidkosti i Gaza

Subject/Index Terms

• TRT Terms: Boundary layer; Energy balance; Turbulence; Turbulent boundary layer
• Old TRIS Terms: Boundary layer stability
• Subject Areas: Design; Energy; Marine Transportation;

Filing Info

• Accession Number: 00019720
• Record Type: Publication
• Source Agency: Joint Publications Research Service
• Files: TRIS
• Created Date: Dec 1 1972 12:00AM