Vapor condensation on liquid surface due to laminar jetinduced mixing  The effects of system parameters
Abstract
The effects of system parameters on the interface condensation rate in a laminar jet induced mixing tank are numerically studied. The physical system consists of a partially filled cylindrical tank with a slightly subcooled jet discharged from the center of the tank bottom toward the liquidvapor interface which is at a saturation temperature corresponding to the constant tank pressure. Liquid is also withdrawn from the outer part of the tank bottom to maintain the constant liquid level. The jet velocity is selected to be low enough such that the free surface is approximately flat. The effect of vapor superheat is assumed to be negligible. Therefore, the interface condensation rate can be determined from the resulting temperature field in the liquid region alone. The nondimensional form of the steady state conservation equations are solved by a finite difference method for various system parameters including liquid height to tank diameter ratio, tank to jet diameter ratio, liquid inflow to outflow area ratio, and a heat leak parameter which characterizes the uniform wall heat flux. Detailed analyses based on the numerical solutions are performed and simplified equations are suggested for the prediction of condensation rate.
 Publication:

AIAA, Aerospace Sciences Meeting
 Pub Date:
 January 1990
 Bibcode:
 1990aiaa.meetQU...L
 Keywords:

 Condensing;
 Free Jets;
 Jet Mixing Flow;
 Laminar Mixing;
 LiquidVapor Interfaces;
 Vapor Phases;
 Cryogenic Equipment;
 Finite Difference Theory;
 Mathematical Models;
 Parameter Identification;
 Pressure Reduction;
 Steady State;
 System Identification;
 Fluid Mechanics and Heat Transfer