Flow, nonlaminar

Nonlaminar flow Ideally, it is a melt flow in a steady, streamlined pattern in and/or out of a tool (die, mold, etc.). Actually, the melt is... 

For pigments, a modified procedure is used in which mainly nonlaminar flow takes place [1.11]. 

Carman s Gas Permeability Method. A gas or a wetting liquid is made to flow through the porous material in a tube by applying vacuum or pressure. The pressure drop or flow rate is measured. For pigments, a modified procedure is used in which mainly nonlaminar flow takes place [1.16]. For standards, see Table 1.1 ( Specific surface Permeability techniques ). 

As was mentioned in Section I, heat transport phenomena of longitudinal flow through rod bundles (i.e., transport from the rods to the fluid v.v.) have been studied quite extensively in the past and are still receiving constant attention, due to the importance of compact heat exchangers and nuclear reactors. This has led to many theoretical and empirical relations to predict Nusselt numbers as a function of the relative pitch and (for nonlaminar flow) the Reynolds number a relatively recent review of those relations that pertain to smooth rod bundles is by Rehme [6]. 

Turbulent flow chromatography is a direct-inject sample-preparation technique that is accomplished on a special chromatography column. The technique has some applicability toward plasma and serum. The special column combines large particle (50 lm) and frit size (20 lm) with high flow rate (5 to 10 mL/ min) to achieve eddies and nonlaminar flow. Under this arrangement, improved... 

Nonlaminar Flow. Ideally, a melt flows in a steady, streamlined pattern in and out of a die. Actually, the extrudate is distorted, causing defects called melt fracture or elastic turbulence. To reduce or eliminate this problem, the entry to the die is tapered or streamlined. 

If the fluid is too viscous, the elution takes too long. If it is too fluid, the flow will be too fast, causing a nonlaminar flow. A given viscometer can be used for a finite range of viscosity. To allow for the viscosity measurement of fluids in a wide range of viscosity, Ubbelohde viscometers are available in different radii of the capillary. 

Equations 2.2 Include also quantities idiich account for nonlaminar flow in the film, for the present 2uicLly8is, the results from [12] and [13] were used, l.e. 

An air supply filtered through High-Efficiency Particulate Air (HEPA) filters under positive pressure regardless of whether flow is laminar or nonlaminar. 

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