Vortex generator hydraulic resistance

Results of an experimental research of a hydraulic resistance of a rotor depending on the angular speed of twirl are presented in Figure 3.6. By drawing full lines, experimental values of a hydraulic resistance of a twirled vortex generator, and dotted, which is computed by formula (3.9)... 

The First kind of losses depending on change of the cross-section area of the chaimel and a direction of a stream in vortex generator, usually consider examine as local resistance, and losses on friction for technically smooth pipes in a wide interval of change of relative length of the case drip pan H < iOO are insignificant (Samsonov, 1974). Generally, hydraulic resistance of the dry device represent in the form of the sum of two composed,... 

Below some methods of calculation of hydraulic resistance of centrifugal devices with blade vortex generator are considered examined. ... 

As hydraulic resistance of such devices is substantially defined determined by design features vortex generator, it is expedient to consider examine questions of hydraulic resistance, having taken for a basis the classification accepted earlier. 

From the numerous dependences offered by various authors (Margolin, 1977 Samsonov, 1974 Kutepov, 1977 Lang, 1964 and Marchall, 1977) for calculation of hydraulic resistance AP, the greatest interest is represented by in what influence of geometrical parameters vortex generator is considered. 

In work (Lang, 1964) hydraulic resistance of the device with screw vortex generator is offered to be coimted on the known eqiration Darsi modified with reference to a screw stream ... 

Data of works (Marchall, 1977 and Bralove, 1981) on hydraulic resistance in pipes with tape vortex generator are generalized by Schukin in work (Kutepov, 1977) in the form of dependence. 

At twist, a stream by means of axial vortex generator with flat or profiles blades hydraulic resistance, depends only on average speed of gas in cracks between blades and their forms. Hydraulic resistance vortex generator with flat blades in 1.5 times above, than with profiles that speaks reduction of losses an input entrance in the device and various conditions of movement of a stream between plates (Kutepov, 1977). 

At a mode of the developed turbulence, Re > 5.510 hydraulic resistance vortex generator is defined determined accordingly under formulas. 

Influence of relative diameters of an input entrance in vortex generator = d/D and a disk d = d/D on hydraulic resistance drip pan is opposite and is defined determined by the equation,... 

The Comer of installation of blades on an input entrance in vortex generator shows on hydraulic resistance drip pan only at values P < 50°, which should be accepted as optimum (Mielazarek, 1978). 

As a result of processing, the experimental data received by authors in bench and industrial conditions, for calculation of hydraulic resistance of a deduster with vortex generator type TB VC, the equation is offered. 

The increase in height vortex generator at constant values does not influence on The factor of hydraulic resistance of devices with conic vortex generator... 

Researches on hydraulic resistance vortex generator type ATVC, it was not spent. 

On the basis of the theory of an ideal centrifugal atomizer and H. O. Nurste s received experimental data suggests to coimt hydraulic resistance vortex generator on the equation. 

For dedusters with two entry axial vortex generator at factors of hydraulic resistance are defined determined by the equations (Mielazarek, 1978) ... 

To lower hydraulic resistance of the device owing to a choice of optimum geometry of blades vortex generator ... 

If necessary blades 2 come back in initial position due to elasticity of a material of blades. After adjustment andachievements of the greatest efficiency of clearing clowns 7 are fixed in this position by means of spring washers and counter nuts. Blades vortex generator bundling on a sine wave curve that promotes decrease reduction in hydraulic resistance of the device. 

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