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Interfacial Area And Interfacial Transfer In Two Phase Flow Systems Annual Technical Progress Report 1991 1992
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Book Synopsis Interfacial Area and Interfacial Transfer in Two-phase Flow Systems. Annual Technical Progress Report, 1991--1992 by :
Download or read book Interfacial Area and Interfacial Transfer in Two-phase Flow Systems. Annual Technical Progress Report, 1991--1992 written by and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed on horizontal air-water bubbly two-phase flow, axial flow, stratified wavy flow, and annular flow. Theoretical studies were also undertaken on interfacial parameters for a horizontal two-phase flow. (DLC).
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume I. Chapters 1-5). by :
Download or read book Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume I. Chapters 1-5). written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed on horizontal air-water bubbly two-phase flow, axial flow, stratified wavy flow, and annular flow. Theoretical studies were also undertaken on interfacial parameters for a horizontal two-phase flow.
Book Synopsis Interfacial Area and Interfacial Transfer in Two-phase Flow Systems by :
Download or read book Interfacial Area and Interfacial Transfer in Two-phase Flow Systems written by and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed on horizontal air-water bubbly two-phase flow, axial flow, stratified wavy flow, and annular flow. Theoretical studies were also undertaken on interfacial parameters for a horizontal two-phase flow. (DLC).
Book Synopsis Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume IV. Chapters 15-19). by :
Download or read book Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume IV. Chapters 15-19). written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed on horizontal air-water bubbly two-phase flow, axial flow, stratified wavy flow, and annular flow. Theoretical studies were also undertaken on interfacial parameters for a horizontal two-phase flow.
Book Synopsis Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume III. Chapters 11-14). by :
Download or read book Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume III. Chapters 11-14). written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed on horizontal air-water bubbly two-phase flow, axial flow, stratified wavy flow, and annular flow. Theoretical studies were also undertaken on interfacial parameters for a horizontal two-phase flow.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume II. Chapters 6-10). by :
Download or read book Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume II. Chapters 6-10). written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed on horizontal air-water bubbly two-phase flow, axial flow, stratified wavy flow, and annular flow. Theoretical studies were also undertaken on interfacial parameters for a horizontal two-phase flow.
Book Synopsis Interfacial Area and Interfacial Transfer in Two-phase Systems. DOE Final Report by :
Download or read book Interfacial Area and Interfacial Transfer in Two-phase Systems. DOE Final Report written by and published by . This book was released on 2002 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the two-fluid model, the field equations are expressed by the six conservation equations consisting of mass, momentum and energy equations for each phase. The existence of the interfacial transfer terms is one of the most important characteristics of the two-fluid model formulation. The interfacial transfer terms are strongly related to the interfacial area concentration and to the local transfer mechanisms such as the degree of turbulence near interfaces. This study focuses on the development of a closure relation for the interfacial area concentration. A brief summary of several problems of the current closure relation for the interfacial area concentration and a new concept to overcome the problem are given.
Book Synopsis Internal Structure and Interfacial Area in Two-phase Flow Systems by :
Download or read book Internal Structure and Interfacial Area in Two-phase Flow Systems written by and published by . This book was released on 1991 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interfacial transfer terms and the importance of the interfacial area concentration are reviewed first with respect to the two-fluid model formulation of two-phase flow systems. Then the available measurement techniques for interfacial area are reviewed. At present, it appears that various methods such as the chemical, light attenuation, photographic, ultrasound attenuation and probe techniques have a number of limitations. Among these measurement techniques, however, the local probe method using one or more double sensors seems to have the greatest potential in terns of accuracy and wider applicability in various two-phase flow patterns. From the brief review of existing interfacial area modeling methods, it is concluded that the conventional approaches might not be sufficient, and new directions are indicated. Recent experimental results on local interfacial structural characteristics of horizontal bubbly two-phase flow and internal flow structure development are presented. More specifically, experimental results on local void fraction, interfacial area concentration, bubble size, bubble interface velocity and bubble frequency are documented in detail. Finally, a theoretical model predicting the mean bubble size and interfacial area concentration is proposed. The theoretically predicted bubble size and interfacial area concentration are found to agree reasonably well with those measured by using a double-sensor resistivity technique.
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995-10 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interfacial Area and Interfacial Transfer in Two-phase Flow by :
Download or read book Interfacial Area and Interfacial Transfer in Two-phase Flow written by and published by . This book was released on 1993 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A joint research program funded by the DOE/BES at Purdue University and the University of Wisconsin-Milwaukee has been underway. The main efforts of the Purdue program were concentrated on the following tasks. Development of Four Sensor Measurement Method; Experimental Study of Axial Changes of Transverse Void and Interfacial Area Profiles in Bubbly Flow; Modeling of the Probe-Particle Interaction Using Monte Carlo Numerical Simulation; and Experimental Study of the Stability of Interface of Very Large Bubbles. Highlights of these research results are reported.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1993 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Implementation of the Interfacial Area Transport Equation in TRACE for Boiling Two-Phase Flows by : Matthew Bernard
Download or read book Implementation of the Interfacial Area Transport Equation in TRACE for Boiling Two-Phase Flows written by Matthew Bernard and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Correctly predicting the interfacial area concentration is vital to the overall accuracy of the two-fluid model because the interfacial area concentration describes the amount of surface area that exists between the two-phases, and is therefore directly related to interfacial mass, momentum and energy transfer. The conventional method for specifying the interfacial area concentration in the two-fluid model is through flow regime-based empirical correlations coupled with regime transition criteria. However, a more physically consistent approach to predicting the interfaciala area concentration is through the interfacial area transport equation (IATE), which can address the deficiencies of the flow regime-based approach. Some previous studies have been performed to demonstrate the feasibility of IATE in developmental versions of the nuclear reactor systems analysis code, TRACE. However, a full TRACE version capable of predicting boiling two-phase flows with the IATE has not been established.Therefore, the current work develops a version of TRACE that is capable of predicting boiling two-phase flows using the IATE. The development is carried out in stages. First, a version of TRACE which employs the two-group IATE for adiabatic, vertical upward, air-water conditions is developed. An in-depth assessment on the existing experimental database is performed to select reliable experimental data for code assessment. Then, the implementation is assessed against the qualified air-water two-phase flow experimental data. Good agreement is observed between the experimental data for and the TRACE code with an average error of 9% for all conditions. Following the initial development, one-group IATE models for vertical downward and horizontal two-phase flows are implemented and assessed against qualified data. Finally, IATE models capable of predicting subcooled boiling two-phase flows are implemented. An assessment of the models shows that TRACE is capable of generating interfacial area concentration in subcooled boiling two-phase flows with the IATE and that heat transfer effects dominate the evolution of in these flows.In parallel to developing a TRACE version with the IATE capability, an extensive study is performed to improve the capabilities of the four-sensor conductivity probe. These include improvements in both the signal processing software and processing schemes. Furthermore, experiments are performed in 14 additional test conditions. These test conditions are strategically chosen to establish database in flow conditions where specific bubble interaction mechanisms in the IATE are highlighted. The data established in the experiments are used to further assess and validate the IATE models available in TRACE.
Book Synopsis Continual Improvement: A Bibliography with Indexes, 1992-1993 by :
Download or read book Continual Improvement: A Bibliography with Indexes, 1992-1993 written by and published by . This book was released on 1994 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
