Experiments on Relatively Thick Turbulent Boundary Layers on Rotating Cylinders in Axial Flow : 2nd Report, The Flows under Pressure Gradients
نویسندگان
چکیده
منابع مشابه
Coherent structures in turbulent boundary layers with adverse pressure gradients
The coherent structures in turbulent boundary layers (TBLs) subjected to adverse pressure gradients (APGs) were investigated by analyzing a database of direct numerical simulations. The equilibrium adverse pressure gradient flows were established by using a power law free-stream distribution. The population trends of the spanwise vortices show that the outer regions of the APG TBLs are densely ...
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A. E. PERRY, IVAN MARUSIC and M. B. JONES Journal of Fluid Mechanics / Volume 461 / June 2002, pp 61 91 DOI: 10.1017/S002211200200825X, Published online: 11 July 2002 Link to this article: http://journals.cambridge.org/abstract_S002211200200825X How to cite this article: A. E. PERRY, IVAN MARUSIC and M. B. JONES (2002). On the streamwise evolution of turbulent boundary layers in arbitrary pre...
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Assuming arbitrary boundary and initial conditions, a transient thermo-elastic analysis of a rotating thick cylindrical pressure vessel made of functionally graded material (FGM) subjected to axisymmetric mechanical and transient thermal loads is presented. Time-dependent thermal and mechanical boundary conditions are assumed to act on the boundaries of the vessel. Material properties of the ve...
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We present measurements of the angular momentum flux (torque) in Taylor-Couette flow of water between independently rotating cylinders for all regions of the (Ω1, Ω2) parameter space at high Reynolds numbers, where Ω1 (Ω2) is the inner (outer) cylinder angular velocity. We find that the Rossby number Ro = (Ω1 - Ω2)/Ω2 fully determines the state and torque G as compared to G(Ro = ∞) ≡ G∞. The ra...
متن کاملSecondary circulations in rotating-flow boundary layers
The rotating-flow boundary layer is a special case of the more general threedimensional boundary layer in which the pressure gradient imposed by the outer flow (above the boundary layer) is not in the same direction as the outer flow. The rotating-flow boundary layer thus has motion that is transverse to the streamlines of the outer flow, that is, there is a secondary circulation to the primary...
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ژورنال
عنوان ژورنال: Transactions of the Japan Society of Mechanical Engineers
سال: 1976
ISSN: 0029-0270,2185-9485
DOI: 10.1299/kikai1938.42.1820