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Directional Effects of Effusion Cooling on the Cooling Film Effectiveness
AIAA Journal, 2021Effusion cooling in gas turbine combustors is complicated by swirling flows for anchoring flame, whereas miniature effusion cooling jets are highly directional.
Leo C. Paitich +5 more
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Effect of Cooling on the Rectal Tone
European Surgical Research, 2007<i>Objectives:</i> It has been claimed that recognizable organized sensory nerve endings could not be detected in the rectal wall. Hence the identification of cold receptors sensitive to cold temperature in the rectal wall has so far not been reported in the literature. We investigated the hypothesis that rectal cooling effected an increase
A, Shafik +3 more
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The effects of cooling human oocytes*
Human Reproduction, 1988Preovulatory human oocytes were cooled to 0 degrees C at 1 degree C/min, with or without the cryoprotectant dimethyl sulphoxide (DMSO), to assess the effects of cooling on the meiotic spindles and on oocyte structure. Batches of oocytes, cultured for 3-9 h, were held at 0 degrees C for 20 or 60 min and then fixed for transmission electron microscopy ...
A H, Sathananthan +3 more
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The effects of cooling mouse oocytes
Journal of Assisted Reproduction and Genetics, 1992The effects of cooling and warming on meiotic spindles of mouse oocytes have been assessed by transmission electron microscopy. Intact cumulus-oocyte complexes were immediately cooled from 37 to 15, 4, 0, and -7 degrees C (seeding temperature) for 15 min in a programmed biological freezer and fixed at these temperatures.
Sathananthan, A. Henry +4 more
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Cooling Effectiveness on Film Cooled Turbine Blades
Heat Transfer: Volume 5 — Computational, Aerospace and Environmental Heat Transfer, 2001Abstract This paper presents experiments on the cooling effectiveness obtained for two different injection locations on the suction side of a turbine blade at transonic flow conditions. Previous results of a computational analysis and flow visualization indicated that a separation bubble is present on the suction side at a location x/L =
M. Derrar, J. Nagler, W. W. Koschel
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Measuring the Physiological Effects of Cooling
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1971Men wear cooling garments to reduce external heat load and to remove metabolic heat. The effects of cooling can be seen in physiological measurements made with and without cooling, and the question is: what are the meaningful measurements to make? The following measurements are described and illustrated with experimental data: tolerance times to a ...
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Numerical Study of the Effect of Blowing Angle on Cooling Effectiveness of an Effusion Cooling
Volume 3: Turbo Expo 2004, 2004The paper numerically investigates the influences of the blowing angle α of coolant flow on the cooling effectiveness of effusion cooling of a plate. Nine cases were studied which cover three blowing angles of α = 30°, 60°, 90° and for each angle three blowing ratios of M = 0.5, 1.0, 2.0 are calculated, respectively.
Yaping Hu, Honghu Ji
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Effects of chemical reaction caused by cooling stream on film cooling effectiveness
Journal of Thermal Science, 2012With the increase of inlet temperature of gas turbines, the benefits by using the conventional methods are likely to approach their limits. Therefore, it is essential to study novel film cooling methods for surpassing these current limits. Based on the theory of heat transfer enhancement, a film cooling method with chemical reaction by cooling stream ...
Keyong Cheng +4 more
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Transactions of the Canadian Society for Mechanical Engineering, 1991
Measurements of the flow field and film cooling effectiveness downstream of a two-dimensional inclined slot were made. A two-dimensional numerical model solving the transport equations in curvilinear orthogonal coordinate system was developed to simulate film cooling process. Comparisons were made between numerical and experimental results.
I. Gartshore, M. Salcudean, P. Matys
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Measurements of the flow field and film cooling effectiveness downstream of a two-dimensional inclined slot were made. A two-dimensional numerical model solving the transport equations in curvilinear orthogonal coordinate system was developed to simulate film cooling process. Comparisons were made between numerical and experimental results.
I. Gartshore, M. Salcudean, P. Matys
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Effects of Curvature on the Film Cooling Effectiveness of Double-Jet Film Cooling
Volume 5B: Heat Transfer, 2014The effect of curvature on the film cooling characteristics of Double-Jet Film Cooling (DJFC) was numerically investigated using three-dimensional Reynolds-Averaged Navier-Stokes (RANS). The low-Reynolds number shear stress transport (SST) model was employed as the turbulence closure model.
Gaoliang Liao +3 more
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