...Masafumi Kizawa; Noriyuki Watanabe; Ai Ueno; Xinyu Chang; Hosei Nagano In this paper, the operating characteristics of the heat load sharing mode of multiple-evaporator loop heat pipe (MLHP) were elucidated based on a visual observation test. The heat load sharing mode is a function of MLHPs...

...%. Visualization of quench front exhibits the physical phenomenon of the quench front. In the propagation of the quench front, the heater experiences dry region, transition region, nucleate region, and forced convection region at different sections. In the present investigation, an effort has been made to explain...

...Yan Yan; Dong Jixian; Tang Wei; Feng Shiyu The phenomenon of steam condensation occurring on one surface in a rectangular horizontal channel was experimentally studied. The experiment was conducted using a visualization method with a steam quality of 0.1–0.9 and mass flux of 20–50 kg/m 2 s. Four...

...A. Sathyabhama; T. P. Ashok Babu Visualization of bubble nucleation during nucleate pool boiling outside a vertical cylindrical heated surface was done for ammonia-water binary mixture in order to obtain a descriptive behavior of the boiling, which was directly compared with the measured heat...

... in cases (b) and (d). Finally, the third header with 4% area PDEs at the entrance to each flow channel was used in case (e). For cases (c), (d), and (e), the manufactured artificial nucleation sites were incorporated. The results show the visual observations of these two headers in combination...

... considered. As a paramagnetic fluid an aqueous solution of glycerol with the gadolinium nitrate hexahydrate is used. The isotherms in the middle-height cross section are visualized by thermochromic liquid crystal slurry. For the unstable configuration the magnetic buoyancy force acts to assist...

... with simplified axisymmetric models and with high speed video taken during flow visualization experiments. The results show that simplified axisymmetric models do not satisfactorily represent the evolution of the droplets under horizontal tubes, and that the 3D numerical model appears to accurately match...

... Instrumentation Measurement Techniques Temperature Visualization Early uses of Thermochromic Liquid Crystals (TLCs) to measure temperature used a single color (usually yellow) to produce a single isotherm. 1 and 2 provide an overview of early liquid crystal characteristics and of their use in heat...

... interferometry contact angle organic compounds evaporation wetting Evaporation Heat Transfer Instability Surface Tension Visualization Contact line Intermolecular interactions in the three phase contact line region, where a liquid-vapor interface intersects a solid substrate, have been...

... surfactants drag reduction turbulence channel flow non-Newtonian flow non-Newtonian fluids cryogenics transmission electron microscopy Heat Transfer Microstructures Non-Newtonian Polymers Rheological Thermal Turbulence Visualization Vortex Reduction of friction losses in turbulent...

..., and a natural convection region in the radial direction. The local heat flux corresponding to these three regions was visualized using a thermosensitive liquid crystal. Moreover, with the increase in Reynolds number, Re, and dimensionless space, H , the recirculation flow on the impingement surface moves...

... interferometry. Of particular relevance to our experimental technique is the pioneering work by Sharp 55 , who used the interference of monochromatic light reflected at the liquid-vapor and liquid-solid interfaces in a thin liquid film to visualize an evaporation liquid film at the base of bubbles on glass...

... 2 . , all of which have Lewis numbers close to unity. The contrasting characteristics of the two cases illustrate the importance of differential diffusion in this visualization technique. As already mentioned, the laminar nonpremixed flames under normal gravity conditions are found...

..., 2001. Associate Editor: G. P. Peterson. 07 11 2001 09 07 2001 10 05 2002 heat transfer film condensation drops jets boiling evaporation film flow Enhancement Film Finned Surfaces Heat Transfer Visualization The Jakob 1 tube row...

... vector around the ice sphere are obtained for different upstream velocities and temperatures. General flow characteristics around the melting ice sphere and effects of velocity and temperature are analyzed. The visualization of melting of a dyed ice sphere is also conducted to investigate the motion...

... Techniques Radiation Visualization Various research has been performed on radiation heat transfer between fluidizing particles and a heat transfer surface in a gas-solid fluidized bed because it is expected that the radiation heat transfer augments at a high temperature. As a result, a model...

...P. M. Lutjen; D. Mishra; V. Prasad, Fellow ASME A Liquid Crystal Scanning Thermography (LCST) technique is developed and implemented to visualize and measure three-dimensional temperature fields. Results are reported for natural convection in a differentially heated vertical cavity. Experiments...

.... Associate Technical Editor: A. Majumdar. 16 Aug 1999 19 Apr 2000 laser beam effects drops surface topography melting heat transfer surface tension photography thin films Heat Transfer Instability Laser Surface Tension Visualization Droplet formation is a common...

... of a solder droplet impact on the substrate varies between 150 μs and 350 μs. The dynamic interaction between the oscillation in the liquid region and the rapid advance of the solidification front was visualized, quantified, and presented in this paper. In a second series of experiments, the evolution...

...O. Manca; B. Morrone; S. Nardini An experimental investigation of natural convection between horizontal, heated, parallel plates in air was carried out by visualizing the flow and measuring the air temperature. Grashof numbers, based on the plate spacing, varied in the 1.22 × 10 5 - 1.06 × 10 6...