Theoretical analysis of evaporation and vapor flow between two parallel planes
Abstract
Pressure, temperature and velocity distributions were computed for vapor flow originating by the evaporation from one surface of a space bounded by parallel planes. A finite difference method was employed using dimensionless parameters with the inclusion of a generalized expression for the saturation temperature-pressure relation of selected fluids. Results indicate that the ordinarily neglected dissipation and volume work functions should not be omitted from the energy equation and that a simplified method using an adiabatic pressure gradient expression for estimating temperature changes gives erroneous results.
- Publication:
-
Letters Heat Mass Transfer
- Pub Date:
- October 1979
- Bibcode:
- 1979LHMT....6..355H
- Keywords:
-
- Evaporation;
- Gas Flow;
- Heat Pipes;
- Parallel Flow;
- Vapor Phases;
- Differential Equations;
- Finite Difference Theory;
- Flow Velocity;
- Pressure Gradients;
- Temperature Distribution;
- Fluid Mechanics and Heat Transfer