Buoyancy Induced Instability of Laminar Flows in Vertical Annuli—I. Flow Visualization and Heat Transfer Experiments (Record no. 814900)

MARC details
000 -LEADER
fixed length control field 02099aab a2200205 4500
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 240131b19901990|||mr||| |||| 00| 0 eng d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 0017-9310
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Mohamed S. El-Genk
9 (RLIN) 880286
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Dasari V. Rao
9 (RLIN) 880288
245 ## - TITLE STATEMENT
Title Buoyancy Induced Instability of Laminar Flows in Vertical Annuli—I. Flow Visualization and Heat Transfer Experiments
300 ## - PHYSICAL DESCRIPTION
Extent 2145-2159 p.
520 ## - SUMMARY, ETC.
Summary, etc. Experiments encompassing both flow visualization and heat transfer measurements (125 < Rein < 1700 and 2.5 × 105 < Grq < 5 × 107) are performed to investigate buoyancy induced instability of developing laminar upflow and downflow of water in a vertical annulus having a diameter ratio of 2.0. The inner wall of the annulus is uniformly heated and the outer wall is insulated. Incipient flow instability is detected from the video images of the dyed flow field, the simultaneous decrease in the temperature difference between the heated wall and the water bulk from its laminar value and the fluctuations in the coolant temperature. The measured values of xfr, based on the video images of the dyed flow fields, are correlated for both buoyancy assisted and opposed flows as functions of local Grashof number, Grq, and local Reynolds number, Re. The Nusselt numbers for buoyancy induced turbulent flows. occurring downstream of the location of incipient instability, are as much as three times higher than those for stable laminar flows at the same inlet Reynolds number, but at lower Grq. The heat transfer data for buoyancy induced turbulent flows are correlated as: Nu = 0.088Raq0.33Rein−0.12, for upflow Nu = 0.21Raq0.29Rein−0.12, for downflow.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Buoyancy Induced Instability
9 (RLIN) 880587
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Laminar Flows
9 (RLIN) 880588
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Vertical Annuli
9 (RLIN) 865363
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Flow Visualization
9 (RLIN) 116118
773 0# - HOST ITEM ENTRY
Title International Journal of Heat and Mass Transfer
International Standard Serial Number 00179310
Place, publisher, and date of publication New York, U.S.A : Pergamon Subsidiary of Elsevier Science & Technology
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://www.sciencedirect.com/science/article/pii/001793109090116C ">https://www.sciencedirect.com/science/article/pii/001793109090116C </a>
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Dewey Decimal Classification
Suppress in OPAC No
Koha item type Articles
-- 14993
-- Mr. Muhammad Rafique Al Haj Rajab Ali (Late)
Holdings
Not for loan Home library Serial Enumeration / chronology Total Checkouts Date last seen Koha item type
  Periodical Section Vol.33, No.10 (October 1990)   31/01/2024 Articles