Extended Reynolds Analogy Coefficients of a Heated Flat Plate in Instationary Flow

• Autorzy: Wierciński, Z. , Kaiser, M.
• Języki publikacji: EN

Abstrakty

EN

The investigation of the extended Reynolds analogy of the transitional boundary layer on the heated flat plate with different onflow condition was carried out. The coefficients of intermittency were determined on the basis of the tree-parametric cumulative distribution function of Weibull using the local shear stress Cf and Stanton number St distributions along the plate. For the unsteady flow with wakes the extended Reynolds number coefficient s is equal to 1.10 while for the flow without unsteadiness it is equal to 1.0. Finally, the formula was proposed for the Prandtl number distribution in the region of laminar-turbulent transition.

Słowa kluczowe

PL

turbina gazowa; łopatki turbinowe; chłodzenie

EN

gas turbine; turbine blades; cooling

• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2005
• Tom: nr 128, vol. 2
• Strony: 581-588
• Opis fizyczny: Bibliogr. 5 poz.

Twórcy

autor

Wierciński, Z.

• Polish Academy of Sciences Institute of Fluid-Flow Machinery,

autor

Kaiser, M.

• Polish Academy of Sciences Institute of Fluid-Flow Machinery

Bibliografia

• [1] McEligot, J., McEligot, D.M., Perspective: Some Research Needs in Convective Heat Transfer for Industry, Trans. ASME, J. Fluids Engng, Vol. 116, pp.398-404
• [2] Dunn, M.G., 2001, Convective heat transfer and aerodynamics in axial flow turbines, J. Turbomachinery, Vol. 123, pp. 637-686
• [3] Wierciński, Z., 1999, Turbulence inception in the induced by wakes boundary layer of a flat plate, Łódź, Turbomachinery, No. 119, pp. 421-430
• [4] Wierciński, Z., 1991, Investigation of the characteristics of flow in the subsonic wind tunnel, IFFM, Report, No 228/1991, Gdansk (in Polish)
• [5] Dyban, E.P., Epik, E.Ya., 1985, Heat transfer and hydrodynamics of the turbulent flow, Naukova Dumka, Kiev