Calculation of dusty-gas flow in an inertial scrubber

1996 ◽  
Vol 31 (6) ◽  
pp. 848-853
Author(s):  
Sh. F. Araslanov ◽  
Sh. Kh. Zaripov
Keyword(s):  
Gas Flow ◽  
Dusty Gas

Focusing of inertial particles after the shock-wave intersection point

2007 ◽  
Vol 5 ◽  
pp. 145-150
Author(s):  
I.V. Golubkina
Keyword(s):  
Shock Wave ◽  
Mass Concentration ◽  
Gas Flow ◽  
Intersection Point ◽  
Plane Shock ◽  
Inertial Particles ◽  
Dusty Gas ◽  
Focusing Effect ◽  
Aerodynamic Focusing ◽  
Particle Mass Concentration

The effect of the aerodynamic focusing of inertial particles is investigated in both symmetric and non-symmetric cases of interaction of two plane shock waves in the stationary dusty-gas flow. The particle mass concentration is assumed to be small. Particle trajectories and concentration are calculated numerically with the full Lagrangian approach. A parametric study of the flow is performed in order to find the values of the governing parameters corresponding to the maximum focusing effect.

Newtonian flow theory for slender bodies in a dusty gas

1981 ◽  
Vol 108 ◽  
pp. 147-157 ◽  
Author(s):  
R. M. Barron ◽  
J. T. Wiley
Keyword(s):  
Shock Wave ◽  
Gas Flow ◽  
The Body ◽  
Dusty Gas ◽  
Newtonian Theory ◽  
Wedge Surface ◽  
Slender Bodies ◽  
Two Phases ◽  
Flow Variables ◽  
Thin Wedge

Hypersonic small-disturbance theory is extended to consider the problem of dusty-gas flow past thin two-dimensional bodies. The mass fraction of suspended particles is assumed to be sufficiently large that the two-way interaction between particle phase and gas phase must be considered. The system of eight governing equations is further reduced by considering the Newtonian approximation γ → 1 andM∞→ ∞. The Newtonian theory up to second order is studied and the equations are solved for the case of a thin wedge at zero angle of attack. Expressions for the streamlines, dust-particle paths, shock-wave location and all flow variables are obtained. It is seen that the presence of the dust increases the pressure along the wedge surface and tends to bend the shock wave towards the body surface. Other effects of the interaction of the two phases are also discussed.

scholarly journals Modeling Dust Fragmentation in Comets

1991 ◽  
Vol 126 ◽  
pp. 221-224
Author(s):  
I. Konno ◽  
W.F. Huebner
Keyword(s):  
Size Distribution ◽  
Hydrodynamic Model ◽  
Gas Flow ◽  
Dusty Gas ◽  
Dust Size Distribution ◽  
Grain Fragmentation ◽  
Comet Halley ◽  
Geometric Effects

AbstractWe developed a 1-D hydrodynamic model of dusty gas flow with dust fragmentation in a cometary atmosphere and performed calculations for a dust-size distribution with radiia =10−4— 10 cm and densities variable with dust size. A comparison was made with Giotto observations of dust jet intensities within 100 km of the nucleus of Comet Halley. We found that dust fragmentation cannot be solely responsible for the flattening of the dust intensity near the nucleus with respect to the 1/R law. We conclude that a combination of geometric effects and grain fragmentation may explain the observed intensity profiles.

Oblique shock waves in a dusty-gas flow over a wedge

1986 ◽  
Vol 408 (1834) ◽  
pp. 61-78 ◽  
Keyword(s):  
Shock Wave ◽  
Gas Flow ◽  
Deflection Angle ◽  
Equations Of Motion ◽  
Gas Analysis ◽  
Oblique Shock ◽  
Oblique Shock Wave ◽  
Dusty Gas ◽  
Wave Angle ◽  
Flow Deflection

Supersonic flows of a dusty gas past a wedge are studied theoretically. An oblique shock wave emanates from the apex of the wedge at the same angle as in the case of a pure gas, but bends back because of the presence of the particles. It is shown from an equilibrium-gas analysis that the extent of decrease in the shock-wave angle is larger for smaller velocity of the uniform stream. When the flow-deflection angle is small enough, the oblique shock wave developing fully at large distances from the apex has a fully dispersed transition structure. On the other hand, it is partly dispersed when the flow-deflection angle is large. Details of the development of the oblique shock wave as the distance from the apex increases are clarified by solving the equations of motion numerically. The particles colliding with the wedge are assumed to stick to or reflect elastically from its surface. It is shown that the reflected particles affect the flow significantly in the neighbourhood of the wedge.

Dusty gas flow mechanism in dust-trap distributors for making building materials

2009 ◽  
Vol 45 (9-10) ◽  
pp. 662-666
Author(s):  
I. A. Chugunova ◽  
Yu. V. Krasovitskii ◽  
E. V. Romanyuk ◽  
R. A. Vazhinskii ◽  
M. N. Fedorova
Keyword(s):  
Gas Flow ◽  
Building Materials ◽  
Dusty Gas ◽  
Flow Mechanism ◽  
Dust Trap
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