Titlebook: Engineering Flow and Heat Exchange; Octave Levenspiel Book 1984 Springer Science+Business Media New York 1984 material.multiphase flow.wat

小故事

本土

Gesture

Migratory

IRATE

Flow in Fluidized Beds of fluid is increased beyond this point a liquid fluidized bed keeps expanding, while a gas bed expands only slightly. This progression is shown in Fig. 7.1. The fluidized state has many desirable liquidlike properties. For example, we can easily move solids about just by pumping or by gravity flow.

cauda-equina

Book 1984each of the phases must be treated separately. The approach here differs from most introductory books on fluids which focus on the Newtonian fluid and treat it thoroughly, to the exclusion of all else. I feel that the student engineer or technologist preparing for the real world should be introduced

Flu表流动

GUILT

Flow of Incompressible Newtonian Fluids in Pipesl gases, liquid water, and liquids of simple molecules (ammonia, alcohol, benzene, oil, chloroform, butane, etc.) are Newtonians. Pastes, emulsions, biological fluids, polymers, suspensions of solids, and other mixtures are likely to be non-Newtonian.* This chapter deals with Newtonians.

NATTY

Molecular Flowbegin to bounce from wall to wall of the flow channel rather than collide with each other. When this happens the character of the flow changes. Thus, different flow regimes are encountered depending on the value of the ratio . where Kn is called the Knudsen number.

记忆

Non-Newtonian Fluidsoint is proportional to the shear stress at that point, thus . All other fluids are called non-Newtonians. Air, water, steam, all gases, and most fluids consisting of simple molecules are Newtonians. Dense suspensions, slurries, emulsions, solutions of long-chain polymers, biological fluids,.liquid