Browsing Department of Mechanical Engineering by Title

Now showing items 72-91 of 137

    • The Measurement, interpretation and use of unsteady momentum fluxes in two-phase flow. 

      Yih, Tien Sieh; Griffith, P. (Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1967], 1967)
      The steady and unsteady components of the momentum flux in a two-phase flow have been measured at the exit of a vertical pipe by means of an impulse technique using a turning tee and beam. Different electrical filters have ...

    • Mechanics of nonlinear short-wave generation by a moored near-surface buoy 

      Zhu, Q.; Liu, Y.; Tjavaras, A.A.; Triantafyllou, M.S.; Yue, D.K.P. (Cambridge University Press, 1999)
      We consider the nonlinear interaction problem of surface waves with a tethered near-surface buoy. Our objective is to investigate mechanisms for nonlinear short surface wave generation in this complete coupled wave-buoy-cable ...

    • Mechanism and behavior of nucleate boiling heat transfer to the alkalai liquid metals 

      Deane, Charles William; Rohsenow, Warren M. (Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1969], 1969)
      A model of boiling heat transfer to the alkali liquid metals is postulated from an examination of the events and phases of the nucleate boiling cycle. The model includes the important effect of microlayer evaporation which ...

    • Mechanism of dropwise condensation 

      Umur, Aydin; Griffith, P. (Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1963], 1963)
      From a study of surface phenomena, information is obtained about conditions under which net condensation can occur. An experimental examination of the surface, using an optical method capable of detecting thin films of ...

    • The mechanism of heat transfer in nucleate pool boiling 

      Han, Chi-Yeh; Griffith, P. (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 ...

    • Mechanism of nucleate pool boiling heat transfer to sodium and the criterion for stable boiling 

      Shai, Isaac (Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1967], 1967)
      A comparison between liquid metals and other common fluids, like water, is made as regards to the various stages of nucleate pool boiling. It is suggested that for liquid metals the stage of building the thermal layer plays ...

    • The mechanism of void formation in initially subcooled systems 

      Griffith, P.; Snyder, George A. (Cambridge, Mass., M.I.T. Dept. of Mechanical Engineering, [1963], 1963)
      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 ...

    • The mechanism of void formation in initially subcooled systems 

      Griffith, P.; Snyder, George A. (Cambridge, Mass., M.I.T. Dept. of Mechanical Engineering, [1963], 1963)
      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 ...

    • A Mechanistic Model of the Actin Cycle 

      Bindschadler, M.; Osborn, E. A.; Dewey, C. F. Jr; McGrath, J. L. (Biophysical Society, 2004-05)
      We have derived a broad, deterministic model of the steady-state actin cycle that includes its major regulatory mechanisms. Ours is the first model to solve the complete nucleotide profile within filaments, a feature that ...

    • A method of correlating heat transfer data for surface boiling of liquids 

      Rohsenow, Warren M. (Cambridge, Mass. : M.I.T. Division of Industrial Cooporation, [1951], 1951)
      A method based an a logical uxplanation of the meani of beat transfer associated with the boiling process is presented for correlating heat transfer data for nucleate boiling of liquids for the case of pool boiling. Tbe ...

    • Model of critical heat flux in subcooled flow boiling 

      Fiori, Mario P.; Bergles A. E. (Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1968], 1968)
      The physical phenomenon occurring before and at the critical heat flux (CHF) for subcooled flow boiling has been investigated. The first phase of this study established the basic nature of the flow structure at CHF. A ...

    • A Model-based Dynamic Toll Pricing Strategy for Controlling Highway Traffic 

      Phan, Thao; Annaswamy, Anuradha; Yanakiev, Diana; Tseng, Eric (2015-10-07)
      A model-based approach to dynamic toll pricing has been developed to provide a systematic method for determining optimal freeway pricing schemes. A novel approach is suggested for alleviating congestion, which utilizes ...

    • The Momentum flux in two-phase flow 

      Andeen, Gerry B.; Griffith, P. (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 ...

    • Natural convection flows in parallel connected vertical channels with boiling 

      Eselgroth, Peter Ward; Griffith, P. (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 ...

    • Nucleate boiling bubble growth and departure 

      Staniszewski, Bogumil E. (Cambridge, Mass. : Massachusetts Institute of Technology, Division of Industrial Cooperation, [1959], 1959)
      The vapor bubble formation on the heating surface during pool boiling has been studied experimentally. Experiments were made at the atmospheric pressure 28 psi and 40 psi, using degassed distilled water and ethanol. The ...

    • Oscillating foils of high propulsive efficiency 

      Anderson, J. M.; Streitlien, K.; Barrett, D.S.; Triantafyllou, M.S. (Cambridge University Press, 1998)
      Thrust-producing harmonically oscillating foils are studied through force and power measurements, as well as visualization data, to classify the principal characteristics of the flow around and in the wake of the foil. ...

    • Post critical heat transfer to flowing liquid in a vertical tube 

      Plummer, David N. (Cambridge, Mass. : Heat Transfer Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, 1974, 1974)

    • A Practical Integration of Automatic Generation Control and Demand Response 

      Shiltz, Dylan; Annaswamy, Anuradha (2015-10-16)
      For a power grid to operate properly, electrical frequency must be continuously maintained close to its nominal value. Increasing penetration of distributed generation, such as solar and wind generation, introduces ...

    • The prediction of low quality boiling voids 

      Griffith, P. (Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1963], 1963)
      Slug flow theory is used to predict the density in heated channels of various shapes. In order to make this calculation possible, measurements are made of the bubble rise velocity in annuli, tube bundles, and channels. It ...

    • The Prediction of multiple heated channel flow patterns from single channel pressure drop data 

      Eselgroth, Peter Ward; Griffith, P. (Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering [1968], 1968)
      Pressure drop and burnout data taken on a single tube apparatus using Freon at one atmosphere has been used to predict the flow patterns, burnout and points at which flow reverses in a five tube array. All the behavior ...