... cooling-lubrication circuit was derived. The head-capacity curves were determined for different types of pumps at different revolution speeds and compared with the injector flow requirements in order to evaluate the pressure-control strategy efficiency. An insight into the ageing effects on the pump...

...Avijit Bhunia; C. L. Chen Liquid microjet arrays have received a lot of research attention in recent years due to its high heat flux cooling capability. The microjets are generated from a jet head cavity with a liquid inlet port on one wall and an array of micro-orifices on another wall...

...Stephen A. Solovitz; Jeffrey Mainka High-power electronic systems often require temperature uniformity for optimal performance. While many advanced cooling systems, such as micro-channels, result in significant heat removal, they are also susceptible to flow mal-distribution that can impact...

...R. Farhadi-Azar; M. Ramezanizadeh; M. Taeibi-Rahni; M. Salimi The flow hydrodynamic effects and film cooling effectiveness placing two small coolant ports just upstream the main jet (combined triple jets) were numerically investigated. Cross sections of all jets are rectangular...

...Jonathan M. Hilton; Phillip M. Ligrani The development and performance of a unique viscous disk air flow displacement device (or VDAFDD) for inducing airflow in confined spaces is described. The development is motivated by electronic cooling, where limitations on space are especially severe...

... | ) should be always (−1). 24 10 2008 16 04 2009 20 07 2009 accidents coolants cooling fission reactor coolants fission reactor safety fluid dynamics fusion reactor safety fractional scaling fractional rate of change fractional change metric hierarchy of complex...

...D. Sui; S. S. Wang; J. R. Mao; T. Kim; T. J. Lu The exit flow patterns of an axial flow fan widely used in electronics cooling are experimentally characterized both in free exit and in the presence of a flat impingement plate. The axial fan is rotated with 12.0 V input from a dc power supply...

...Jongwook Joo; Paul Durbin The cause of overprediction of cooling efficiency by unsteady Reynolds averaged simulations of turbine blade trailing edge cooling flow is investigated. This is due to the deficiency in the level of unsteady coherent energy very near to the wall. Farther from the wall...

... extends into the laminar flow regime in order to determine the minimum conditions for cooling. Experiments are conducted for a fixed geometry and control valve setting. At low Reynolds numbers based on the inlet tube hydraulic diameter and average velocity, the results exhibit an increase in dimensionless...

...David Quin; Ronan Grimes Microscale axial flow fans were investigated in response to the growing cooling requirements of the electronics industry. The two main challenges of this investigation were manufacture of a fully functional fan at the microscale, and performance reduction due to Reynolds...

...Jie Liu; Walfre Franco; Guillermo Aguilar Cryogen spray cooling is an auxiliary procedure to dermatologic laser surgery, which consists of precooling the superficial skin layer (epidermis) during laser irradiation of subsurface targets to avoid nonspecific epidermal thermal damage. While previous...

...Jesús Manuel Fernández Oro; Carlos Santolaria Morros; Katia María Argüelles Díaz; Pedro Luis García Ybarra This work deals with a numerical simulation developed to predict the characteristic cooling times of a low-thermal diffusivity fuel oil confined in the tanks of a wrecked ship. A typical...

...Gianluca Iaccarino; Stéphane Moreau The Cartesian incompressible RANS solver with immersed boundaries, IBRANS , recently developed at Stanford, has been extended to include conjugate heat transfer modeling and used for the simulation of the electrical motor of an automotive engine cooling fan...

... 27 04 2005 cryogenics mass transfer cooling refrigerators The pulse tube is among the simplest of all cryocoolers and has the advantage over the Stirling cryocooler of having no moving parts in the cold region, resulting in high reliability, long life, and low vibration...

...M. Coussirat; J. van Beeck; M. Mestres; E. Egusquiza; J.-M. Buchlin; C. Valero A numerical analysis of the flow behavior in industrial cooling systems based on arrays of impinging jets has been performed, using several eddy viscosity models to determine their modeling capabilities. For the cooling...

... by the upper jet velocity. 14 05 2004 07 04 2005 cooling jets anemometry stratified flow shear flow fluctuations convection plastics industry extrusion aerodynamics The blown film manufacturing process shown in Fig. 1 is used to produce thin plastic films in the polymer...

... , R. J. , 1998 , “ Surface Flow Visualization Using the Thermal Wakes of Small Heated Spots ,” Exp. Fluids , 25 , pp. 104 – 107 . Byerley , A. R. , Stormer , O. , Baughn , J. W. , Simon , T. W. , and Van Treuren , K. W. , 2001 , “ A Cool Thermal Tuft for Detecting...

... particular value of Reynolds number and suction rate is axially stress-free. The heat transfer coefficient increases with the increasing suction rate, Reynolds number, Prandtl number, oscillation frequency and amplitude. Interesting means of cooling and heating processes of cylinder surface are obtained...

... does not include a thermal part, one of the main interests of this kind of study relates to the heat and mass transfer. Thus, the main application of jets impinging a concave surface remains the cooling of the inner part leading edge of the turbine blade. Because of this application, the major part...

.... The solidification curves obtained by the proposed method at different cooling rates are in good agreement with predictions made by the Scheil model. In the methods mentioned above, precipitated impurities will affect the measured values of friction solid. In the method based on the electrical resistance...