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Experimental And Numerical Investigation Of Impinging Jet Flow In Square Ducts Intersecting At 90 Degrees
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Book Synopsis Experimental and Numerical Investigation of Impinging Jet Flow in Square Ducts Intersecting at 90 Degrees by :
Download or read book Experimental and Numerical Investigation of Impinging Jet Flow in Square Ducts Intersecting at 90 Degrees written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental and numerical investigation has been conducted on flow through two square ducts with a 2:1 hydraulic diameter ratio joined at a right angle. Measurements of the velocity field were acquired using a laser Doppler velocimeter at various planar locations throughout the ducts at a nominal Reynolds number of 68,000. Pressure drop measurements were taken for 3 Reynolds numbers between 46,000 and 93,000. Computational fluid dynamics (CFD) analyses were performed using STAR-CD to determine how well the experimental data could be predicted using the k-[var-epsilon], k-[var-epsilon] RNG, k-[var-epsilon]Chen, k-[var-epsilon] quadratic, k-[omega], and Spalart-Allmaras models. The results show that there are distinct differences in the CDF results. The standard k-[var-epsilon] model overpredicted the loss coefficient by 4% and underpredicted the exit swirl magnitude by 43%. The best predictor of the swirl decay was found to be the k-[omega] model, which adequately followed the data throughout the entire geometry and underpredicted the exit swirl by 16%. The best overall model was found to be Spalart-Allmaras, which overpredicted the loss coefficient by 2% and underpredicted the exit swirl magnitude by 40%.
Book Synopsis Experimental and Numerical Investigation of Impinging Jet Flow in Square Ducts Intersecting at 90 Degrees by : David Corson
Download or read book Experimental and Numerical Investigation of Impinging Jet Flow in Square Ducts Intersecting at 90 Degrees written by David Corson and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental and numerical investigation has been conducted on flow through two square ducts with a 2:1 hydraulic diameter ratio joined at a right angle. Measurements of the velocity field were acquired using a laser Doppler velocimeter at various planar locations throughout the ducts at a nominal Reynolds number of 68,000. Pressure drop measurements were taken for 3 Reynolds numbers between 46,000 and 93,000. Computational fluid dynamics (CFD) analyses were performed using STAR-CD to determine how well the experimental data could be predicted using the k-{var_epsilon}, k-{var_epsilon} RNG, k-{var_epsilon}Chen, k-{var_epsilon} quadratic, k-{omega}, and Spalart-Allmaras models. The results show that there are distinct differences in the CDF results. The standard k-{var_epsilon} model overpredicted the loss coefficient by 4% and underpredicted the exit swirl magnitude by 43%. The best predictor of the swirl decay was found to be the k-{omega} model, which adequately followed the data throughout the entire geometry and underpredicted the exit swirl by 16%. The best overall model was found to be Spalart-Allmaras, which overpredicted the loss coefficient by 2% and underpredicted the exit swirl magnitude by 40%.
Book Synopsis An Experimental and Numerical Investigation of Turbulent Flows in a Square Duct with 90 [degree] Bend by : Faustin Alloise Ondore
Download or read book An Experimental and Numerical Investigation of Turbulent Flows in a Square Duct with 90 [degree] Bend written by Faustin Alloise Ondore and published by . This book was released on 1999 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Numerical Investigation of Flow and Heat Transfer in a Ribbed Square Duct by :
Download or read book Experimental and Numerical Investigation of Flow and Heat Transfer in a Ribbed Square Duct written by and published by . This book was released on 2007 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present contribution describes the methodology and results of an experimental/numerical research program progressing at the von Karman Institute about the investigation of flow and heat transfer in a square section stationary duct equipped with high blockage ribs on one face. This geometry is representative of a high pressure turbine blade cooling channel. The purpose is to highlight the interaction and the synergy between experimental and simulation approaches. The paper shows how the experimental results lead to a conceptual model of the behavior and the topology of this flow. A numerical prediction of the flow over a single rib, obtained from a Large-Eddy Simulation, is able to validate this model, to provide additional information eventually not accessible by the experiments and to put in evidence the underlying structures driving the process. Simulations of a multi-rib domain put in evidence the possible existence of flow structures longer than one rib-pitch length and suggest possible avenues of futures experimental/numerical campaigns to gain a full understanding of this class of flows.
Book Synopsis Experimental and Numerical Investigation of Steady, Supersonic, Turbulent Flow Through a Square Duct by : David O. Davis
Download or read book Experimental and Numerical Investigation of Steady, Supersonic, Turbulent Flow Through a Square Duct written by David O. Davis and published by . This book was released on 1985 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental and Numerical Investigation of Turbulent Flows in a Square Duct with 90deg Bend by : Faustin Alloise Ondore
Download or read book An Experimental and Numerical Investigation of Turbulent Flows in a Square Duct with 90deg Bend written by Faustin Alloise Ondore and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Numerical Investigation of Heat and Fluid Flow in a Square Duct Featuring Criss-cross Rib Patterns by :
Download or read book Experimental and Numerical Investigation of Heat and Fluid Flow in a Square Duct Featuring Criss-cross Rib Patterns written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Convecting Flow in a Square Duct with a 180 Degree Bend; an Experimental and Numerical Study by : Richard W. Johnson
Download or read book Turbulent Convecting Flow in a Square Duct with a 180 Degree Bend; an Experimental and Numerical Study written by Richard W. Johnson and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Convecting Flow in a Square Duct with a 180° Bend ; an Experimental and Numerical Study by : Richard W. Johnson
Download or read book Turbulent Convecting Flow in a Square Duct with a 180° Bend ; an Experimental and Numerical Study written by Richard W. Johnson and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Investigation of the Flow and Heat Transfer Characteristic of Impinging Laminar Confined Square Jets by : Loay B. Younis Aldabbagh
Download or read book Numerical Investigation of the Flow and Heat Transfer Characteristic of Impinging Laminar Confined Square Jets written by Loay B. Younis Aldabbagh and published by . This book was released on 2002 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental and Numerical Investigation of Three-dimensional Jet Flows from Sharp-edged Orifices [microform] by : Rainer Rudolf Schwab
Download or read book An Experimental and Numerical Investigation of Three-dimensional Jet Flows from Sharp-edged Orifices [microform] written by Rainer Rudolf Schwab and published by National Library of Canada. This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Convecting Flow in a Square Duct with a 180deg Bend by : R. W. Johnson
Download or read book Turbulent Convecting Flow in a Square Duct with a 180deg Bend written by R. W. Johnson and published by . This book was released on 1984 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research in this British dissertation was motivated by the desire to provide a comprehensive set of convective heat transfer data against which flow simulation schemes could be tested. Turbulent convecting three-dimensional flow of fluids in curved passages is frequently encountered in thermofluids equipment and systems. Although such flow situations have been too complex to adequately simulate computationally in the past, recent developments have provided physical models coupled with numerical techniques which can be applied to provide such simulations. Nevertheless, it has not been established to what extent such simulations provide accurate predictions and a sufficiently detailed data base does not exist to allow a searching evaluation of computer predictions. It is the conclusion of this collaborative study that significant inadequacies remain in the turbulence and wall models with respect to their ability to predict fully-three dimensional curved turbulent flow. Predictions for the Nusselt number distribution are in rather better agreement with the experimental data than are the hydrodynamic and temperature field predictions.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1997 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1993 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gas Turbine Heat Transfer and Cooling Technology, Second Edition by : Je-Chin Han
Download or read book Gas Turbine Heat Transfer and Cooling Technology, Second Edition written by Je-Chin Han and published by CRC Press. This book was released on 2012-11-27 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference for engineers and researchers, Gas Turbine Heat Transfer and Cooling Technology, Second Edition has been completely revised and updated to reflect advances in the field made during the past ten years. The second edition retains the format that made the first edition so popular and adds new information mainly based on selected published papers in the open literature. See What’s New in the Second Edition: State-of-the-art cooling technologies such as advanced turbine blade film cooling and internal cooling Modern experimental methods for gas turbine heat transfer and cooling research Advanced computational models for gas turbine heat transfer and cooling performance predictions Suggestions for future research in this critical technology The book discusses the need for turbine cooling, gas turbine heat-transfer problems, and cooling methodology and covers turbine rotor and stator heat-transfer issues, including endwall and blade tip regions under engine conditions, as well as under simulated engine conditions. It then examines turbine rotor and stator blade film cooling and discusses the unsteady high free-stream turbulence effect on simulated cascade airfoils. From here, the book explores impingement cooling, rib-turbulent cooling, pin-fin cooling, and compound and new cooling techniques. It also highlights the effect of rotation on rotor coolant passage heat transfer. Coverage of experimental methods includes heat-transfer and mass-transfer techniques, liquid crystal thermography, optical techniques, as well as flow and thermal measurement techniques. The book concludes with discussions of governing equations and turbulence models and their applications for predicting turbine blade heat transfer and film cooling, and turbine blade internal cooling.
Book Synopsis Ground and Flight Evaluation of a Small-Scale Inflatable-Winged Aircraft by :
Download or read book Ground and Flight Evaluation of a Small-Scale Inflatable-Winged Aircraft written by and published by . This book was released on 2002 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A small-scale, instrumented research aircraft was flown to investigate the flight characteristics of inflatable wings. Ground tests measured the static structural characteristics of the wing at different inflation pressures, and these results compared favorably with analytical predictions. A research-quality instrumentation system was assembled, largely from commercial off-the-shelf components, and installed in the aircraft. Initial flight operations were conducted with a conventional rigid wing having the same dimensions as the inflatable wing. Subsequent flights were conducted with the inflatable wing. Research maneuvers were executed to identify the trim, aerodynamic performance, and longitudinal stability and control characteristics of the vehicle in its different wing configurations. For the angle-of-attack range spanned in this flight program.
Book Synopsis Handbook of Hydraulic Resistance by : I. E. Idelchik
Download or read book Handbook of Hydraulic Resistance written by I. E. Idelchik and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook has been composed on the basis of processing, systematization and classification of the results of a great number of investigations published at different time. The essential part of the book is the outcome of investigations carried out by the author. The present edition of this handbook should assist in increasing the quality and efficiency of the design and usage of indutrial power engineering and other constructions and also of the devices and apparatus through which liquids and gases move.
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