THE MECHANISM OF VOID FORMATION IN INITIALLY SUBCOOLED SYSTEMS,

Abstract

When an initially subcooled, water filled system undergoes a transient in heat flux or pressure such that bubbles form, the most important variable which determines the volume of the resulting void is the number of bubbles that is formed. In this report the number of bubbles that are formed is shown to be a function of the surface micro-configuration, the contact angle and the history. A method of specifying the history is developed, experiments are run, and the general correctness of the history specification is shown to be correct. Order of magnitude values of the limiting wall superheats as a function of the surface history and configuration are presented, but the reproducibility of the experiments is not found to be high. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1963
Accession Number
AD0424629

Entities

People

  • George Snyder
  • Peter Griffith

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Flux (Rate)
  • Heat Flux
  • Production Control
  • Reproducibility
  • Specifications

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Computational Modeling and Simulation