By Ron Darby, Raj P. Chhabra
This ebook presents readers with the most up-tp-date, exact, and functional fluid mechanics comparable purposes that the practising BS point engineer wishes this present day within the chemical and comparable industries, as well as a basic figuring out of those purposes established upon sound basic easy clinical ideas. The emphasis is still on challenge fixing, and the hot version contains many extra examples.
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Additional resources for Chemical Engineering Fluid Mechanics, Third Edition
These can be referred to as scientific and engineering systems. These systems differ basically in the manner in which the dimension of force is defined. In both systems, mass, length, and time are fundamental dimensions. 1) or [F ] = [ma] = ML/t 2 In scientific systems, this is accepted as the definition of force; that is, force is a derived dimension, being identical to ML/t2. In engineering systems, however, force is considered in a more practical or “pragmatic” context. 3) The quantity g is called the acceleration due to gravity and is equal to Gm2/r2 where G is a constant.
The equation may also be empirical if measured values of z versus x can be fit by an equation of this form, with no reference to the laws of physics. For any equation to be valid, every term in the equation must have the same physical character, that is, the same net dimensions, and consequently the same units in any consistent system of units. This is known as the law of conservation of dimensions (otherwise known as the “fruit salad law”—“you can’t add apples and oranges, unless you are making fruit salad”).
Non-Newtonian” fluids are typically complex materials with significant “substructure,” such as melts or solutions of high-molecularweight polymers, suspensions of solids in liquids, emulsions of liquids in liquids, foam suspensions of gas bubbles in liquids, surfactant solutions, etc. Typical examples are paint, ink, pastes, liquid soaps, blood, mud, ketchup, mayonnaise, mustard, milk shakes, creams, lotions, etc. The characteristics of linear, nonlinear viscous, and viscoelastic fluids are discussed in Chapter 3, and an analysis of the flow characteristics of a variety of “purely viscous” non-Newtonian fluids is included in later chapters.
Chemical Engineering Fluid Mechanics, Third Edition by Ron Darby, Raj P. Chhabra