scholarly journals Numerical modeling in a two-dimensional statement of the process of dropship of electrode at welding

2019 ◽  
Vol 21 (4) ◽  
Author(s):  
S Suvorov ◽  
A Vakhrushev
Keyword(s):  
Numerical Modeling ◽  
Two Dimensional ◽  
Dimensional Statement

Numerical modeling of two-dimensional smoldering processes

1993 ◽  
Vol 95 (1-2) ◽  
pp. 170-182 ◽  
Author(s):  
M MOALLEMI ◽  
H ZHANG ◽  
S KUMAR
Keyword(s):  
Numerical Modeling ◽  
Two Dimensional

TRIGGERING OF DETONATION PROCESSES IN PROPULSION CHAMBER

2021 ◽  
Vol 14 (2) ◽  
pp. 40-45
Author(s):  
D. V. VORONIN ◽  
Keyword(s):  
Thermal Conductivity ◽  
Numerical Modeling ◽  
Gas Flow ◽  
Stokes Equations ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Navier Stokes Equations ◽  
Chemically Reacting ◽  
Plane Disk ◽  
And Diffusion

The Navier-Stokes equations have been used for numerical modeling of chemically reacting gas flow in the propulsion chamber. The chamber represents an axially symmetrical plane disk. Fuel and oxidant were fed into the chamber separately at some angle to the inflow surface and not parallel one to another to ensure better mixing of species. The model is based on conservation laws of mass, momentum, and energy for nonsteady two-dimensional compressible gas flow in the case of axial symmetry. The processes of viscosity, thermal conductivity, turbulence, and diffusion of species have been taken into account. The possibility of detonation mode of combustion of the mixture in the chamber was numerically demonstrated. The detonation triggering depends on the values of angles between fuel and oxidizer jets. This type of the propulsion chamber is effective because of the absence of stagnation zones and good mixing of species before burning.

scholarly journals Numerical modeling of microwave heating

2010 ◽  
Vol 42 (1) ◽  
pp. 99-124 ◽  
Author(s):  
A.K. Shukla ◽  
A. Mondal ◽  
A. Upadhyaya
Keyword(s):  
Thermal Conductivity ◽  
Numerical Modeling ◽  
Temperature Distribution ◽  
Microwave Heating ◽  
Two Dimensional ◽  
Conventional Furnace ◽  
Microwave Furnace ◽  
Simulation Results ◽  
Heating Behavior ◽  
Cylindrical Samples

The present study compares the temperature distribution within cylindrical samples heated in microwave furnace with those achieved in radiatively-heated (conventional) furnace. Using a two-dimensional finite difference approach the thermal profiles were simulated for cylinders of varying radii (0.65, 6.5, and 65 cm) and physical properties. The influence of susceptor-assisted microwave heating was also modeled for the same. The simulation results reveal differences in the heating behavior of samples in microwaves. The efficacy of microwave heating depends on the sample size and its thermal conductivity.

Two-dimensional numerical modeling of dual-collector magnetotransistors: Evidence for emitter efficiency modulation

1992 ◽  
Vol 31 (1-3) ◽  
pp. 210-214 ◽  
Author(s):  
C. Riccobene ◽  
G. Wachutka ◽  
J. Bürgler ◽  
H. Baltes
Keyword(s):  
Numerical Modeling ◽  
Two Dimensional
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