scholarly journals SELECTION OF FILTER MATERIAL AND ANALYSIS OF CALCULATION EQUATIONS OF MASS EXCHANGE PROCESS IN ROTARY FILTER APPARATUS

2021 ◽  
Vol 86 (5-6) ◽  
Author(s):  
Rasuljon Tojiev ◽  
Akmaljon Akhrorov ◽  
Ilkhomjon Mamarizayev
Keyword(s):  
Mass Exchange ◽  
Exchange Process ◽  
Filter Material ◽  
Mass Exchange Process ◽  
Selection Of

scholarly journals MATHEMATICAL MODELING OF THERMOGRAVITATIONAL AND THERMOCA-PILLARY CONVECTION IN GAS-LIQUID PROCESSES

2021 ◽  
Vol 2021 (1) ◽  
pp. 58-66
Author(s):  
Evgeniy Podoplelov ◽  
Aleksey Bal'chugov ◽  
Anatoliy Dement'ev ◽  
Anatoliy Glotov
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Phase Boundary ◽  
Mass Exchange ◽  
Exchange Process ◽  
Transfer Coefficients ◽  
Mass Exchange Process ◽  
Convective Flows ◽  
Liquid Phases ◽  
Turbulent Pulsations

. The interaction of gas and liquid phases in some cases is accompanied by the spontaneous occur-rence of convective flows and turbulent pulsations at the phase boundary and in adjacent areas. Hy-drodynamic instability allows to accelerate the interfacial transfer of matter and leads to an increase in mass transfer coefficients. Research in this field is not only theoretical, but also practical, since sur-face convection can be artificially created in apparatus for intensifying the mass exchange process.

scholarly journals PARAMETRIZATION OF THE HEAT AND MASS EXCHANGE PROCESS IN THE SURFACE ATMOSPHERIC LAYER

2021 ◽  
Vol 3 (72) ◽  
pp. 21-26
Author(s):  
B. Kantsyrev
Keyword(s):  
Mass Exchange ◽  
Numerical Models ◽  
Exchange Process ◽  
Computational Grid ◽  
Modeling Processes ◽  
Atmospheric Layer ◽  
Surface Atmospheric Layer ◽  
Mass Exchange Process ◽  
Heat And Mass Exchange

When constructing numerical models of the atmosphere and the surface atmospheric layer (PAS) interacting with it, the “parametrization” approach is used, that is, the representation of processes with scales smaller than the scale of the cells of the computational grid intended for modeling processes of larger scales.

scholarly journals Carbon Abundance in Mass-Exchanging Binaries

1988 ◽  
Vol 108 ◽  
pp. 221-222
Author(s):  
H. Cugier ◽  
J.P. De Greve
Keyword(s):  
Mass Transfer ◽  
Mass Exchange ◽  
Exchange Process ◽  
Type Systems ◽  
Mass Exchange Process ◽  
Carbon Abundance

The evolution of the carbon abundance at the surface of both components of a mass-exchanging (Algol-type) binary is examined (fig. 1). Distinction is made between case B and case AB (fig. 2) of mass transfer, in view of the different timescales involved. In the mass accreting component thermohaline mixing is adopted when matter with decreasing hydrogen abundance is deposited on the surface.It is shown that at the surface of the loser a very low C-abundance is present, while at the surface of the gainer different regimes occur. On the average the expected C-abundance on the gainer is clearly lower than the observed solar value, but far above the value at the surface of the loser. The variation in time during the mass-exchange process is compared to the values, derived from observation of several Algol-type systems.

scholarly journals MATHEMATICAL MODELS OF THE HEAT AND MASS EXCHANGE PROCESS DURING PNEUMO-TRANSPORTATION OF COTTON-RAW.

2020 ◽  
Vol 91 (11) ◽  
pp. 508-514
Author(s):  
Alisher Mamatov ◽  
◽  
Azimjan Parpiev ◽  
Abdul-malik Kayumov ◽  
◽  
...  
Keyword(s):  
Mathematical Models ◽  
Mass Exchange ◽  
Exchange Process ◽  
Mass Exchange Process ◽  
Heat And Mass Exchange

scholarly journals The Role of Discrete Capillary Rings in Mass Transfer From the Surface of a Drying Capillary Porous Medium

2021 ◽  
Author(s):  
Hafiz Tariq Mahmood ◽  
Evangelos Tsotsas ◽  
Abdolreza Kharaghani
Keyword(s):  
Porous Medium ◽  
Mass Exchange ◽  
Exchange Process ◽  
Three Dimensional ◽  
Network Models ◽  
Pore Network ◽  
Liquid Films ◽  
Pore Network Model ◽  
Mass Exchange Process ◽  
Limiting Condition

AbstractThe mass exchange between the surface of a model capillary porous medium and the adjacent gas-side boundary layer is studied in the limiting condition of isothermal, slow drying. In order to quantify the role and significance of liquid films in the mass exchange process, three-dimensional pore network Monte Carlo simulations are carried out systematically in the presence and absence of discrete capillary rings. The pore network simulations performed with capillary rings show a noticeable delay in transition from the capillary-supported regime to the diffusion-controlled regime. These simulation results differ significantly from the predictions of classical pore network models without liquid films, and they appear to be more consistent with the experiments conducted with real porous systems. As compared to classical pore network models, the pore network model with rings seems to predict favorably the spatiotemporal evolution of wet and dry patches at the medium surface as well as of their relative contributions to the net mass exchange rate. This is apparent when the analytical solution of the commonly used Schlünder’s model is examined against the numerical simulations conducted using classical and ring pore network models.

Sign in / Sign up

Export Citation Format

Share Document