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Lecturer(s)
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Machač Ivan, prof. Ing. CSc.
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Course content
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Fluid flow basic concepts (continuum, fluid, fluid classification), kinematics (velocity field, shear rate and vorticity tensors). Physical quantity balances, continuity equation. Stress in the fluid, stress tensor, constitutive equations. Classification of fluids, non-Newtonian fluids, flow models, momentum equation. Hydrostatics, inviscid fluid, Euler equation, Bernoulli equation, potential flows. Navier-Stokes equation, solution of NS equation, viscometric flows. Energy equation, dissipation of mechanical energy. Turbulent flow, Reynolds stresses, theory of turbulence, universal velocity profile. Theory of hydrodynamic boundary layer, integral momentum balance, flow around a flat plate, boundary layer separation. Drag coefficient, theory of similarity. Heat transfer basic concepts, Fourier equation and its solution, steady heat conduction. Unsteady heat conduction, temperature field in bodies of a simple shape, approximate methods of solution. Convective heat transfer, natural and force convection. Fourier-Kirchhoff equation, methods of its solution. Turbulent heat transfer. Heat transfer coefficient. Thermal boundary layer. Non-dimensional correlations.
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing), Work with text (with textbook, with book)
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Learning outcomes
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The aim of the subject is to explain theoretical fundamentals of the fluid flow and heat transfer. The phenomenological approach is based on solving of differential and integral balances of momentum and energy. The individual topics involve formulation of the basic equations of flow and heat transfer, inviscid fluid flow, laminar and turbulent flows of viscous fluids, description of hydrodynamic and thermal boundary layers, heat conduction, convectional heat transfer, and analogy between momentum and heat transfer.
After passing out the subject, the student is able to solve the basic problems of the fluid flow and heat transfer in the design and check calculations of industrial apparatus. He is able to study the special literature dealing with the fluid flow and transfer phenomena.
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Prerequisites
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Mathematics I and II, Chemical engineering I
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Assessment methods and criteria
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Oral examination, Written examination
In the written part of examination, which serves to the verification of student application abilities, the student solves three characteristic practical problems of the fluid flow and heat transfer. The basic form of the oral examination is a discussion about two given areas. The degree of the acquired knowledge is examined.
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Recommended literature
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BEJAN A. Heat Transfer. John Wiley, New York, 1993.
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KUNDU P.K., COHEN I.M. Fluid Mechanics. Academic Press, London, 2002.
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PANTOFLÍČEK J., MACHAČ I. Úvod do sdílení hybnosti a tepla II. SNTL Praha, 1978.
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PANTOFLÍČEK J., MACHAČ I. Úvod do sdílení hybnosti a tepla I. SNTL Praha, 1971.
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ŠESTÁK J., RIEGER F. Přenos hybnosti, tepla a hmoty. ČVUT Praha, 1993.
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