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Now showing items 11-20 of 27
The Momentum flux in two-phase flow
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1965], 1965)
The average momentum flux at a section of a pipe with twophase upflow has been measured by the impulse technique. Steamwater and air-water mixtures were tested in one-inch and onehalf inch nominal pipes. Homogeneous ...
The transition from the annular to the slug flow regime in two-phase flow
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1964], 1964)
Experiments were conducted to determine the transition from annular to semiannular flow regimes for two-phase, gas-liquid upflow in vertical tubes. The influencesof liquid flow rate, tube diameter, liquid viscosity, surface ...
The deterioration in heat transfer to fluids at supercritical pressure and high heat fluxes
(Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1968], 1968)
At slightly supercritical pressure and in the neighborhood of the pseudo-critical temperature (defined as the temperature corresponding to the peak in specific heat at the operating pressure), the heat transfer coefficient ...
The mechanism of heat transfer in nucleate pool boiling
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1962], 1962)
A criterion is developed for bubble initiation from a gas filled cavity on a surface in contact with a superheated layer of liquid. It is found that the temperature of bubble initiation on a given surface is a function of ...
Natural convection flows in parallel connected vertical channels with boiling
(Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1967], 1967)
The steady-state flow configuration in an array of parallel heated channels is examined with the objective of predicting the behavior of a reactor during a loss of flow accident. A method of combining the results of single ...
A study of system-induced instabilities in forced-convection flows with subcooled boiling
(Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1965], 1965)
A combined analytical and experimental program was carried out to investigate the problem of hydrodynamic stability of forcedconvection flows with boiling. The study was restricted to the flow of water in small channels ...
Some hydrodynamic characteristics of bubbly mixtures flowing vertically upward in tubes
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1964], 1964)
An investigation of bubbly flow has been conducted in vertical plexiglass tubes using air and water at atmospheric pressure. The bubbly flow pattern is an entrance condition or a non-fully developed flow. A spontaneous ...
The bubbly-slug transition in a high velocity two phase flow
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1964], 1964)
A possible mechanism for the transition between bubbly and slug flow is proposed and tested in a simulated slug flow system. No sudden collapse of slug flow with increasing velocity is found and it is concluded that: a. ...
Bubble growth rates in boiling
(Cambridge, Mass. : Massachusetts Institute of Technology, Division of Industrial Cooperation, [1956], 1956)
The conditions determining the growth rate of a bubble on a surface in boiling are considered and a mathematical model framed in the light of these conditions. The growth rate is then calculated for bubbles growing under ...
The role of surface conditions in nucleate boiling
(Cambridge, Mass. : Massachusetts Institute of Technology, Division of Industrial Cooperation, [1958], 1958)
Nucleation from a single cavity has been stuied indicating that cavity gemtry is aportant in two ways. The mouth diameter determines the superheat nmeded to initiate boiling and its shape determines its stability one boiling ...