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 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 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 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.

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