Read e-book online An Introduction to Fluid Mechanics and Transport Phenomena PDF

By G. Hauke

ISBN-10: 904817905X

ISBN-13: 9789048179053

This e-book provides the principles of fluid mechanics and delivery phenomena in a concise manner. it really is appropriate as an advent to the topic because it includes many examples, proposed difficulties and a bankruptcy for self-evaluation.

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G. Hauke's An Introduction to Fluid Mechanics and Transport Phenomena PDF

This e-book offers the principles of fluid mechanics and shipping phenomena in a concise manner. it really is compatible as an advent to the topic because it includes many examples, proposed difficulties and a bankruptcy for self-evaluation.

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Extra info for An Introduction to Fluid Mechanics and Transport Phenomena (Fluid Mechanics and Its Applications)

Example text

11). Now we can proceed to defining the volumetric and mass flux. 7 (Volumetric flow rate). The volumetric flow rate Q is the volume of fluid that crosses the surface per unit time, v · n dS Q= S Its dimensions are [Q] = L3 T−1 and its units in the SI, m3 /s. 5 The Concept of Flux 27 n Fig. 11. Exterior normal to the surface of a volume. 8 (Mass flow rate). 24) S Its dimensions are [m] ˙ = MT−1 and its SI units, kg/s. n θ dA n v v S Fig. 12. Flux across a surface. 23), let us take the differential of area dA over the surface S of Fig.

At the same time as the wind blows the fallen tree leaves, it transports all the fluid properties, such as temperature, chemical concentration of the chemical species, energy, momentum and so on. In short, this transport phenomenon is caused by fluid velocity. The second class of transport phenomena is due to diffusion transport or molecular transport, and it will be explained in more detail in Chapter 7 on Constitutive Equations. Mathematically, for the case of constant coefficients, the net local balance of transport by diffusion around a fluid particle is proportional to the diffusion coefficient α and the Laplacian, α∆c = α ∂2c ∂2c ∂2c + 2+ 2 2 ∂x1 ∂x2 ∂x3 20 2 Elementary Fluid Kinematics and it contains second derivatives.

Find the volumetric flow rate per unit width at any value of x. 9. Film condensation on a vertical plate. 10 Write the expression of the kinetic energy flux across a surface S. 3 Fluid Forces The intensity of transport processes crucially depends on fluid motion. This is one of the salient features of transport phenomena in fluids. And since the fluid motion is impelled by the forces applied to the fluid, these fluid forces are of paramount importance in determination of the mentioned processes. Therefore, this chapter introduces the main forces that for engineering purposes act upon a fluid, namely, body forces, surface forces and surface tension.

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An Introduction to Fluid Mechanics and Transport Phenomena (Fluid Mechanics and Its Applications) by G. Hauke


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