Inscrição na biblioteca: Guest
Início - ICHMT DL Ano atual Arquivos Comitê executivo Centro Internacional para Transferência de Calor e Massa

2.14 Drop Collisions with Liquid Flowing Films on Simulated LWR Control Rod Guide Tubes

DOI: 10.1615/ICHMT.1982.AdvCourHeatTransfNucReactSaf.260
483 pages

D. R. Alexander
Mechanical Engineering Department, University of Nebraska, Lincoln, Nebraska 68588, USA

Frederick A. Rockenbach
Los Alamos Technical Associates, Inc. Los Alamos, New Mexico 87544, USA


This paper presents the results of an experimental investigation of free-falling water drops 4 mm in diameter at terminal velocity in air interacting with a very thin liquid water film flowing over a four-inch (0.1 m) in diameter stainless steel cylinder (simulates a "wetted" control rod guide tube in the upper plenum of a LWR). In this experiment, the gravity field was aligned with the impact angle. The splash events were recorded by using high speed color cinematography. The drop Weber number, drop Reynolds number, and film Froude number for this experiment are approximately 5.2 × 103, 4.3 × 104, and 50 respectively. Some of the more important results reported in this work are (1) unsymmetric splash phenomena, (2) observation of a very fine and high velocity mist (∼3 times original drop velocity) produced in an unsymmetric skewed direction at the initial stages of drop impact, (3) smooth transition of splash phenomena with increasing angle of impact around cylinder, and (4) absence of Rayleigh jets. Implication and significance of results to some practical problems are presented.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH