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Filtering by: Subject Gas dynamics -- Mathematical models

Numerical modeling of the hydrodynamics of gas fluidized beds

Creator:

Wang, Yusan

Abstract:

This research involves a numerical study of the hydrodynamics of gas fluidized beds. We use the continuum model, treating both gas and particles as interpenetrating continua. The motion of gas and particles is strongly coupled by the interactions between them. For simplicity, we only consider drag forces. We use MacCormack's...

Resource Type:

Dissertation
Modeling a heat regenerator-reactor with temperature dependent gas properties

Creator:

Kulkarni, Milind S.

Abstract:

This thesis examines the transient response of a packed bed heat regenerator when heated from an initial uniform bed temperature. Very large (1700 K) temperature differences were studied as well as the effect of simultaneous chemical reaction in the gas phase. First the effects of temperature on physical and transport...

Resource Type:

Masters Thesis
A kinetic model for dissolved gas transport in the presence of trapped gas

Creator:

Donaldson, Jeremy H.

Abstract:

Understanding the processes involved in the transport of dissolved gas plumes in groundwater aquifers is essential for comprehending the effect that these transport processes can have on site characterization and remedial design applications. Previous laboratory and field studies have indicated that dissolved gas transport in groundwater can be greatly affected...

Resource Type:

Masters Thesis
A free boundary value problem for the gas dynamic equations

Creator:

Gerlach, Jurgen

Abstract:

We discuss a mathematical model arising from the following physical situation. We consider a gas-filled cylinder with a piston at one end whose motion is determined by the pressure of the gas within the cylinder and by external forces. Zero mass flux is assumed at the piston while the mass...

Resource Type:

Dissertation