Numerical studies of the effects of jetinduced mixing on liquidvapor interface condensation
Abstract
Numerical solutions of jetinduced mixing in a partially full cryogenic tank are presented. An axisymmetric laminar jet is discharged from the central part of the tank bottom toward the liquidvapor interface. Liquid is withdrawn at the same volume flow rate from the outer part of the tank. The jet is at a temperature lower than the interface, which is maintained at a certain saturation temperature. The interface is assumed to be flat and shearfree and the condensationinduced velocity is assumed to be negligibly small compared with radial interface velocity. Finitedifference method is used to solve the nondimensional form of steady state continuity, momentum, and energy equations. Calculations are conducted for jet Reynolds numbers ranging from 150 to 600 and Prandtl numbers ranging from 0.85 to 2.65. The effects of above stated parameters on the condensation Nusselt and Stanton numbers which characterize the steadystate interface condensation process are investigated. Detailed analysis to gain a better understanding of the fundamentals of fluid mixing and interface condensation is performed.
 Publication:

AIAA, 24th Thermophysics Conference
 Pub Date:
 April 1989
 Bibcode:
 1989thph.conf...12L
 Keywords:

 Axisymmetric Flow;
 Condensing;
 Jet Mixing Flow;
 LiquidVapor Interfaces;
 Mathematical Models;
 Continuity Equation;
 Cryogenic Equipment;
 Equilibrium Flow;
 Finite Difference Theory;
 Momentum Theory;
 Prandtl Number;
 Reynolds Number;
 Stanton Number;
 Fluid Mechanics and Heat Transfer