Document Details


Title:
DEVELOPMENT OF DESIGN CRITERIA FOR ROOF WASHDOWN SYSTEMS: A STUDY OF THE RELATIONSHIP OF SLOPE TO PARTICLE TRANSPORT BY WATER FILMS
Author(s):
HEISKELL, [NAVAL RESEARCH LABORATORY, U.S.]; CREW, R J [NAVAL RESEARCH LABORATORY, U.S.]; VELLA, N J [NAVAL RESEARCH LABORATORY, U.S.]
Subject Terms:
PARTICLES; GRAPHS; CALCULATION METHODS; PHOTOGRAPHS
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1964 Jun 04
Declassification Status:
Unknown
Document Pages:
0049
Accession Number:
NV0060059
Document Number(s):
USNRDLTR834
Originating Research Org.:
UNITED STATES NAVAL RADIOLOGICAL DEFENSE LABORATOR
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
THIS IS THE SIXTH REPORT ON A SERIES OF TESTS DESIGNED TO STUDY THE BA SIC PRINCIPLES INVOLVED IN TRANSPORT OF PARTICULATE MATTER BY WATER FI LMS. THE PREVIOUS REPORTS COVERED THE TRANSPORT OF PARTICULATE MATTER BY VARIOUS WATER FLOW RATES ON AN IDEAL SURFACE AT ONE OF FIVE SLOPES FROM 0 TO 0.165. THIS REPORT COVERS THE RELATIONSHIP OF SLOPE TO TRA NSPORT ON AN IDEAL SURFACE. ON A NEAR-HORIZONTAL SURFACE, NO TRANSPOR T OCCURS WHEN THE WATER FLOW RATE IS INSUFFICIENT TO PRODUCE TURBULENT FLOW. THE SLIGHTEST SLOPE CAUSES PARTICLES TO BE TRANSPORTED AT LOW WATER FLOW RATES IN LAMINAR FLOW. SURFACE WAVES, WHICH ARE PRESENT AT ALL SLOPES UNDER MOST FLOW CONDITIONS, INCREASE TRANSPORT RATE. AN E MPIRICAL EQUATION IS PRESENTED FOR THE COMPUTATION OF THE TRANSPORT VE LOCITIES OF BOTH SPHERICAL AND IRREGULAR SHAPED PARTICLES. THE MAXIMU M AMOUNT OF PARTICULATE MATTER THAT CAN BE TRANSPORTED IS PRESENTED.


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