Separation boundary

Internal Flow. Depending on the atomizer type and operating conditions, the internal fluid flow can involve compHcated phenomena such as flow separation, boundary layer growth, cavitation, turbulence, vortex formation, and two-phase flow. The internal flow regime is often considered one of the most important stages of Hquid a tomiza tion because it determines the initial Hquid disturbances and conditions that affect the subsequent Hquid breakup and droplet dispersion. [Pg.328]

It has proved to be possible to measure liquid-liquid phase-separation boundaries and crystallization phenomena in high viscous molten polymer mixtures. [Pg.579]

In this review, we summarize recent progress in understanding the aggregation states of organic extractant phases in relation to third-phase formation. The organic extractant phase is described from a colloidal standpoint to interpret the phase-separation boundary. The aim is to provide the basis for developing a theoretical approach to predict third-phase formation. Finally, the structure of the third phase is described. [Pg.383]

Figure 14.6 Raman spectrum of acetaminophen powder, used as the reference material in the calibration step. Nine prominent peaks used as separation boundaries are indicated by arrows.

It is to be noted that the values of and obtained by an inviscid analysis are used here to calculate the impressed pressure over the shear layer. If F is considered to be small, then the impressed pressure gradient is going to be negligibly small and not cause flow separation. In the absence of separation, boundary layer assumption holds and the impressed pressure remains the same across the shear layer and is the reason that the analysis results using inviscid pressure distribution provide vital clue to the receptivity route. [Pg.116]

The range of liquid flow rates used to generate the date in Figure 23.10 is similar to the blood flow rates used in clinical practice. Figure 23.10 shows that for Reynolds numbers between 5 and 10, the slope of the friction factor versus Reynolds number curve changes suggesting the onset of boundary layer separation. Boundary layer separation will lead to mixing of the blood and a decrease in the blood side mass-transfer resistance. [Pg.681]

The separated boundary layer and wake displace the outside streamline pattern, which causes the pressure distribution to be significantly altered. Boundary layer separation causes a force on the body called drag force. The drag coefficient is defined as the ratio of total profile drag force divided by the flow pressure and projected area of an object and is expressed as [49]... [Pg.245]

The separated boundary layers extend downstream into the surrounding flow field as free shear layers. With increasing downstream distance, the separated layers reapproach the wake axis or the bounding surface, enclosing a... [Pg.45]

The phase separation boundary depends on the degree of polymerization of NaPA at lowest monomer concentration (see Figure 9) precipitation appears first for the largest chains of polyelectrolyte. At high monomer concentration, the Cf limits become nearly independent of the degree of polymerization. In this monomer concentration domain, a study on NaPA with different divalent counterions (Ba2+, Ca2+, Cd2+, Co2+, Cu2+, Mg2+, Mn2+, Ni2+) shows that their efficiencies to precipitate the sodium polyacrylate are practically the same Cf is a constant [22,30]. [Pg.142]

If an ion is present in the sample with an effective mobility equal to that of the leading ion. the conductivity of the leading electrolyte is not changed. Qualitative information can still be obtained by measuring the retardation of the appearance of the first separation boundary. Of course in this case the conductivity and zone lengths of all other zones are not Influenced by this ionic species. [Pg.204]

In the light of the phase diagram derived earlier for a eonductive polymer blend (Figure 11.124), the energy dissipation meehanism by redispersion ean be understood. It is the energy input driven way baek, of the system from the equilibrium interfacial energy curve at the flocculation point to the fully dispersed, but still phase-separated boundary. [Pg.629]

Two different separation boundaries were tried (pIC5o = 4.4 and pICso = 6), with 95% and 90% accuracy for the classification, respectively. The model also predicted known cardiovascular side effects with an accuracy of 70% when tested using an external set. [Pg.319]

Linear/Non-Linear separation boundaries Here our attention is focused on the mathematical form of the decision boundary. Typical non-linear classification techniques are based on ANN and SVM, specially devoted to apply for classification problems of non-linear nature. It is remarkable that CAIMAN method seems not to suffer of nonlinear class separability problems. [Pg.31]

The second interphase transport model incorporates the dynamic interaction of three phases with two interphase exchange currents at the separated boundaries as indicated in Figure 22 where a solid phase Pa is formed by interactions involving the separated phases P3 and Pi. [Pg.29]

Figure 5.29 Separation boundary for classification of objects into two classes with /c = 1.

Typically, the number of neighboring objects k is chosen to be 1 or 3. With the k-NN method, very flexible separation boundaries are obtained as exemplified in Figure 5.29. [Pg.193]

First of all, the entire gamut of chemical processes in ground water may be subdivided into homogenous and heterogenic ones. The former occur only within the medium of groimd water because of its nonuniformity and lack of equilibrium. Ihe latter run at the separation boundary between water and rock, between water and formation oil or gas and are the result of differences in their nature and composition. [Pg.81]

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