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Momentum change

Figure Al.6.1. Gaussian wavepacket in a hannonic oscillator. Note tliat the average position and momentum change according to the classical equations of motion (adapted from [6]). Figure Al.6.1. Gaussian wavepacket in a hannonic oscillator. Note tliat the average position and momentum change according to the classical equations of motion (adapted from [6]).
The momentum change resulting from the collision is O = tjAi where k = k -k. The Bom amplitude also... [Pg.2045]

Water is flowing at 5 m/s in a 50 mm diameter pipe which incorporates a 90° bend, as shown in Figure 2.8. What is the additional force to which a retaining bracket will be subjected, as a result of the momentum changes in the liquid, if it is arranged symmetrically in the pipe bend ... [Pg.43]

Notice the similarity of criteria (7.3) and (1.58) the latter gives the non-adiabaticity of angular momentum changes due to collisions, the... [Pg.226]

We have calculated the momentum of one molecule and the number of collisions during the interval At. Now we bring the parts of the calculation together. The total momentum change in that interval is the change 2mvx that an individual molecule undergoes multiplied by the total number of collisions ... [Pg.284]

At this point, we calculate the rate of change of momentum by dividing this total momentum change by the time interval during which it occurs (At) and use Newton s second law that the force is equal to the rate of change of momentum ... [Pg.284]

From Rate of change of momentum = (total momentum change)/At,... [Pg.284]

The pressure drop of a two-phase flow generally consists of three components frictional loss, momentum change, and elevation pressure drop arising from the effect of the gravitational force field. The local Ap therefore is normally written as... [Pg.217]

Using a homogeneous model proposed by Owens (1961) for low void fractions (a < 0.30) and high mass flux, as is usually encountered in a water-cooled reactor, the momentum change (or acceleration) pressure gradient term is obtained from... [Pg.217]

For two-phase flow, additional assumptions are made that thermodynamic phase equilibrium exists before and after the restriction (or expansion), and that no phase change occurs over the restriction. Romie (Lottes, 1961) wrote the equation for the momentum change across an abrupt expansion as... [Pg.241]

Force = (no. of exchanges/per sec) (momentum change per exchange) we have... [Pg.656]

Thus, for Knudsen cosine scattering, / = 1, and for specular reflection, / = 0. Equation (59) may be solved for the drift velocity of the scattered molecule to give Uf = (1 - f)ut. The viscous force transmitted to the wall during gas collisions is the product of the number of collisions per second and the momentum change per collision,... [Pg.660]

The momentum equation written for a differential length of pipe containing the two-phase mixture is similar to Eq. (15-29), except that the rate of momentum changes along the tube due to the change in... [Pg.459]

A general yet approximate ansatz has been suggested by Kapral and Cicotti [34], who considered the hmit of small momentum changes ... [Pg.290]

See other pages where Momentum change is mentioned: [Pg.227]    [Pg.667]    [Pg.903]    [Pg.2020]    [Pg.2021]    [Pg.2022]    [Pg.2313]    [Pg.17]    [Pg.658]    [Pg.41]    [Pg.18]    [Pg.284]    [Pg.115]    [Pg.336]    [Pg.137]    [Pg.314]    [Pg.211]    [Pg.159]    [Pg.34]    [Pg.635]    [Pg.664]    [Pg.6]    [Pg.27]    [Pg.48]    [Pg.506]    [Pg.19]    [Pg.19]    [Pg.63]    [Pg.288]    [Pg.290]    [Pg.291]    [Pg.301]    [Pg.14]    [Pg.14]    [Pg.427]   
See also in sourсe #XX -- [ Pg.12 , Pg.427 , Pg.441 ]

See also in sourсe #XX -- [ Pg.12 , Pg.427 , Pg.441 ]



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