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On the entrainment in nonprecipitating cumuli — Entrained air provenance
Studia Geophysica et Geodaetica, 1985The paper deals with the testing of the cloud top entrainment hypothesis. The method is based on the works by Warner[1–3], Paluch[4] and Telford[5]. The levels at which the entrained air might originate were determined. Several types of successions of entrainment levels were found; in the upper parts of cumuli, entrainment from above the level of ...
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Journal of Hydraulic Research, 1996
This paper describes the results of a laboratory study of air entrainment below drops for a range of Drop numbers from 0.0007 to 0.0046. Characteristics of the plunging flow that occurs when the tailwaler depth yt is in the range of yt* . to h were studied where yt* . is the value of yt when a hydraulic jump is formed at the section where Ihe deflected
N. Rajaratnam, A.Y.P. Kwan
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This paper describes the results of a laboratory study of air entrainment below drops for a range of Drop numbers from 0.0007 to 0.0046. Characteristics of the plunging flow that occurs when the tailwaler depth yt is in the range of yt* . to h were studied where yt* . is the value of yt when a hydraulic jump is formed at the section where Ihe deflected
N. Rajaratnam, A.Y.P. Kwan
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Entrainment of fibers from air filters
Environmental Research, 1980Abstract This paper reports the results of a study in which the entrainment of man-made mineral fibers from commercially used modular filters was measured. The tests were performed on 42 modular filters representative of the most frequently used medium-efficiency air cleaning units which service health care facilities, banks, and general office ...
N A, Esmen +5 more
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Air entrainment on a moving continuous web
Chemical Engineering Science, 2004Abstract The air boundary layer on a moving continuous web was experimentally investigated in a laboratory coating equipment. The boundary layer thickness was obtained by smoke visualization and measured by image analysis in the range 2.4×10 4 Re 5 . According to the web speed, three laminar flow mechanisms were observed, for which the air boundary
A. Arzate, P.A. Tanguy
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1990
While the early history of the use of air entraining admixtures is ambiguous, the author has heard, but not read, that the early Romans and Greeks added them to their pozzolanic mixes to increase their workability. Probably blood or animal fat was used for this purpose. Before proceeding further with the evolution of this class of admixtures, it should
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While the early history of the use of air entraining admixtures is ambiguous, the author has heard, but not read, that the early Romans and Greeks added them to their pozzolanic mixes to increase their workability. Probably blood or animal fat was used for this purpose. Before proceeding further with the evolution of this class of admixtures, it should
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Air Entrainment in Chute and Tunnel Spillways [PDF]
, 1992 In supercritical open channel flows air is entrained at the free surface. This process is called self-aeration. A method to estimate the flow properties is presented. New results on drag reduction in self-aerated flows are developed. It is shown that the mechanisms of drag reduction are associated with the presence of an air concentration boundary ...
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