Posted inFeatured
Posted inadvanced_concepts
Dependence of K__ on bed structure
Tortuosity. Although it was implied in the derivation of equation 4.9 that a single value…
Posted inadvanced_concepts
Streamline and turbulent flow
Equation 4.9 applies to streamline flow conditions, though CARMAN(7) and others have extended the analogy with…
Posted inadvanced_concepts
MOTION OF PARTICLES IN A CENTRIFUGAL FIELD
In most practical cases where a particle is moving in a fluid under the action…
Posted inadvanced_concepts
Vertical motion (general case)
For the Stokes’ law regime equations 3.88, 3.89 and 3.90 are applicable. For the Newton’s law regime, R_/ρu2 is…
Posted inadvanced_concepts
Motion of a sphere in the stokes’ law region
Under these conditions, from equation 3.5: if allowance is made for the added mass. In this…
Posted inadvanced_concepts
General equations of motion
The motion of a particle through a fluid may be traced because the value of…
Posted inadvanced_concepts
Power-law fluids
Because most shear-thinning fluids, particularly polymer solutions and flocculated suspensions, have high apparent viscosities, even…
Posted inadvanced_concepts
MOTION OF BUBBLES AND DROPS
The drag force acting on a gas bubble or a liquid droplet will not, in…
Posted inadvanced_concepts
GAS–SOLIDS SYSTEMSGAS–SOLIDS SYSTEMS
General behaviour In general, the behaviour of gas-fluidised systems is considerably more complex than that…