Author: Gregory John QuinnPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Heat Transfer in a Liquid Film Flowing Over a Rotating Disk and a Diverging Open Channel with and Without Boiling and Surfactant Addition
Author: Gregory John QuinnTransport Phenomena in Thin Rotating Liquid Films Including
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721030507
Category :
Languages : en
Pages : 42
Book Description
In this grant, experimental, numerical and analytical studies of heat transfer in a thin liquid film flowing over a rotating disk have been conducted. Heat transfer coefficients were measured experimentally in a rotating disk heat transfer apparatus where the disk was heated from below with electrical resistance heaters. The heat transfer measurements were supplemented by experimental characterization of the liquid film thickness using a novel laser based technique. The heat transfer measurements show that the disk rotation plays an important role on enhancement of heat transfer primarily through the thinning of the liquid film. Experiments covered both momentum and rotation dominated regimes of the flow and heat transfer in this apparatus. Heat transfer measurements have been extended to include evaporation and nucleate boiling and these experiments are continuing in our laboratory. Empirical correlations have also been developed to provide useful information for design of compact high efficiency heat transfer devices. The experimental work has been supplemented by numerical and analytical analyses of the same problem. Both numerical and analytical results have been found to agree reasonably well with the experimental results on liquid film thickness and heat transfer Coefficients/Nusselt numbers. The numerical simulations include the free surface liquid film flow and heat transfer under disk rotation including the conjugate effects. The analytical analysis utilizes an integral boundary layer approach from whichFaghri, AmirGlenn Research CenterEXPERIMENTATION; NUMERICAL ANALYSIS; HEAT TRANSFER; THIN FILMS; ROTATING DISKS; HEAT TRANSFER COEFFICIENTS; TRANSPORT PROPERTIES; TEMPERATURE EFFECTS; NUCLEATE BOILING
Effect of Subcooling and Radiation on Film-boiling Heat Transfer from a Flat Plate
Author: Thomas D. HamillPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 52
Book Description
Heat Transfer Correlation for a Rotating Disk with a Fluid Film
Author: Russ DeForestPublisher:
ISBN:
Category : Disks, Rotating
Languages : en
Pages : 138
Book Description
Heat and Mass Transfer from a Rotating Disk with Phase Change
Author: Jisheng WangPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 244
Book Description
Experiments on Hydrodynamic and Thermal Behavior of Thin Liquid Films Flowing Over a Rotating Disk
Author: Basar OzarHeat Transfer
Author: Viktor Pavlovich IsachenkoPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 502
Book Description
Convective Heat Transfer From Rotating Disks Subjected To Streams Of Air
Author: Stefan aus der WieschePublisher: Springer
ISBN: 9783319201665
Category : Science
Languages : en
Pages : 107
Book Description
This Brief describes systematically results of research studies on a series of convective heat transfer phenomena from rotating disks in air crossflow. Phenomena described in this volume were investigated experimentally using an electrically heated disk placed in the test section of a wind tunnel. The authors describe findings in which transitions between different heat transfer regimes can occur in dependency on the involved Reynolds numbers and the angle of incidence, and that these transitions could be related to phenomenological Landau and Landau-de Gennes models. The concise volume closes a substantial gap in the scientific literature with respect to flow and heat transfer in rotating disk systems and provides a comprehensive presentation of new and recent results not previously published in book form.
Author: C. Bell
Author: Colin Bell