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536.27 --- 532.5 --- Heat exchangers --- -Two-phase flow --- -Flow, Two-phase --- Fluid dynamics --- Multiphase flow --- Chemical engineering --- Heat --- Refrigeration and refrigerating machinery --- Direct flow and counter-flow in heat exchangers --- Liquid motion. Hydrodynamics --- Congresses --- Equipment and supplies --- Transmission --- Two-phase flow --- Congresses. --- -Direct flow and counter-flow in heat exchangers --- 532.5 Liquid motion. Hydrodynamics --- 536.27 Direct flow and counter-flow in heat exchangers --- -532.5 Liquid motion. Hydrodynamics --- Flow, Two-phase

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Two-phase flow --- Heat --- Transmission --- Fluid mechanics --- -Two-phase flow --- #KVIV --- Flow, Two-phase --- Fluid dynamics --- Multiphase flow --- Electromagnetic waves --- Physics --- Cold --- Combustion --- Fire --- Temperature --- Thermochemistry --- Thermodynamics --- Hydromechanics --- Continuum mechanics --- Fluid mechanics. --- Two-phase flow. --- Transmission. --- Heat transfer --- Thermal transfer --- Transmission of heat --- Energy transfer --- Hydrodynamics. --- TWO PHASE FLOWS --- Monograph --- Heat - Transmission

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536.24 <063> --- Heat --- -Two-phase flow --- -Flow, Two-phase --- Fluid dynamics --- Multiphase flow --- Electromagnetic waves --- Physics --- Cold --- Combustion --- Fire --- Temperature --- Thermochemistry --- Thermodynamics --- Heat transfer. Heat exchange. Heat transmission--Congressen --- Transmission --- -Congresses --- Congresses --- Two-phase flow --- Congresses. --- -Heat transfer. Heat exchange. Heat transmission--Congressen --- 536.24 <063> Heat transfer. Heat exchange. Heat transmission--Congressen --- Transmission&delete&

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This thesis represents the first systematic description of the two-phase flow problem. Two-phase flows of volatile fluids in confined geometries driven by an applied temperature gradient play an important role in a range of applications, including thermal management, such as heat pipes, thermosyphons, capillary pumped loops and other evaporative cooling devices. Previously, this problem has been addressed using a piecemeal approach that relied heavily on correlations and unproven assumptions, and the science and technology behind heat pipes have barely evolved in recent decades. The model introduced in this thesis, however, presents a comprehensive physically based description of both the liquid and the gas phase. The model has been implemented numerically and successfully validated against the available experimental data, and the numerical results are used to determine the key physical processes that control the heat and mass flow and describe the flow stability. One of the key contributions of this thesis work is the description of the role of noncondensables, such as air, on transport. In particular, it is shown that many of the assumptions used by current engineering models of evaporative cooling devices are based on experiments conducted at atmospheric pressures, and these assumptions break down partially or completely when most of the noncondensables are removed, requiring a new modeling approach presented in the thesis. Moreover, Numerical solutions are used to motivate and justify a simplified analytical description of transport in both the liquid and the gas layer, which can be used to describe flow stability and determine the critical Marangoni number and wavelength describing the onset of the convective pattern. As a result, the results presented in the thesis should be of interest both to engineers working in heat transfer and researchers interested in fluid dynamics and pattern formation.

Physics. --- Energy systems. --- Fluids. --- Thermodynamics. --- Fluid mechanics. --- Engineering Fluid Dynamics. --- Energy Systems. --- Fluid- and Aerodynamics. --- Two-phase flow. --- Flow, Two-phase --- Fluid dynamics --- Multiphase flow --- Hydraulic engineering. --- Engineering, Hydraulic --- Engineering --- Fluid mechanics --- Hydraulics --- Shore protection --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat --- Heat-engines --- Quantum theory --- Hydrostatics --- Permeability --- Hydromechanics --- Continuum mechanics

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Multiphase thermal systems (involving more than one phase or one component) have numerous applications in aerospace, heat-exchanger, transport of contaminants in environmental systems, and energy transport and energy conversion systems. Advances in understanding the behaviour of multiphase thermal systems could lead to higher efficiency energy production systems, improved heat-exchanger design, and safer and enhanced treatment of hazardous waste. But such advances have been greatly hindered by the strong effect of gravitational acceleration on the flow. Depending on the flow orientation and the phase velocities, gravitational forces could significantly alter the flow regime, and hence the pressure-drop and heat-transfer coefficients associated with the flow. A reduced gravity environment (or "microgravity"), provides an excellent tool to study the flow without the masking effects of gravity. This book presents for the first time a comprehensive coverage of all aspects of two-phase flow behaviour in the virtual absence of gravity.

Reduced gravity environments. --- Two-phase flow. --- Heat --- Transmission. --- Flow, Two-phase --- Fluid dynamics --- Multiphase flow --- Environments, Reduced gravity --- Low gravity environments --- Microgravity --- Subgravity environments --- Extreme environments --- Gravitation --- Heat transfer --- Thermal transfer --- Transmission of heat --- Energy transfer --- Engineering. --- Automotive Engineering. --- Classical and Continuum Physics. --- Measurement Science and Instrumentation. --- Construction --- Industrial arts --- Technology --- Automotive engineering. --- Continuum physics. --- Physical measurements. --- Measurement   . --- Measuring --- Mensuration --- Mathematics --- Metrology --- Physical measurements --- Measurements, Physical --- Mathematical physics --- Measurement --- Classical field theory --- Continuum physics --- Physics --- Continuum mechanics