scholarly journals Predicting the dry deposition of aerosol-sized particles using layer-resolved canopy and pipe flow analogy models: Role of turbophoresis

2010 ◽  
Vol 115 (D12) ◽  
Author(s):  
G. G. Katul ◽  
T. Grönholm ◽  
S. Launiainen ◽  
T. Vesala
Keyword(s):  
Pipe Flow ◽  
Dry Deposition

The role of streamwise perturbations in pipe flow transition

2006 ◽  
Vol 18 (7) ◽  
pp. 074104 ◽  
Author(s):  
Fernando Mellibovsky ◽  
Alvaro Meseguer
Keyword(s):  
Pipe Flow ◽  
Flow Transition

Sulfur dry deposition over the western North Atlantic: the role of coarse aerosol particles

Tellus B ◽  
1989 ◽  
Vol 41 (3) ◽  
pp. 338-343 ◽  
Author(s):  
H. Sievering ◽  
J. Boatman ◽  
M. Luria ◽  
C. C. Van Valin
Keyword(s):  
North Atlantic ◽  
Dry Deposition ◽  
Aerosol Particles ◽  
Coarse Aerosol

Hydrodynamic Aspects of Drag Reduction with Additives

1973 ◽  
Vol 10 (03) ◽  
pp. 284-292
Author(s):  
Paul S. Granville
Keyword(s):  
Turbulent Flow ◽  
Drag Reduction ◽  
Boundary Layers ◽  
Pipe Flow ◽  
Fundamental Properties ◽  
Flow Through ◽  
Similarity Law ◽  
Similarity Laws

The hydrodynamic aspects of drag reduction with additives are presented. The fundamental properties of this remarkable phenomenon are described. A brief history is outlined from anomalous results in pipe flow, through strange effects in the Texas oilfields and to the current research efforts. Correlation by means of the velocity similarity laws of turbulent flow is explained for drag reduction in pipe flow and for the boundary layers on bodies. The limits of drag reduction are also explained on the basis of the interactive similarity law. The peculiar role of viscoelasticity is examined. Naval architectural applications are reviewed.

Sulfur dry deposition over the western North Atlantic: the role of coarse aerosol particles

Tellus B ◽  
1989 ◽  
Vol 41B (3) ◽  
pp. 338-343 ◽  
Author(s):  
H. SIEVERING ◽  
J. BOATMAN ◽  
M. LURIA ◽  
C. C. VALIN
Keyword(s):  
North Atlantic ◽  
Dry Deposition ◽  
Aerosol Particles ◽  
Coarse Aerosol

scholarly journals The initial stage of transition in pipe flow: role of optimal base-flow distortions

2004 ◽  
Vol 517 ◽  
pp. 131-165 ◽  
Author(s):  
M. I. GAVARINI ◽  
A. BOTTARO ◽  
F. T. M. NIEUWSTADT
Keyword(s):  
Pipe Flow ◽  
Base Flow ◽  
Initial Stage

scholarly journals A pilot study about microplastics and mesoplastics in an Antarctic glacier

2021 ◽  
Vol 15 (6) ◽  
pp. 2531-2539
Author(s):  
Miguel González-Pleiter ◽  
Gissell Lacerot ◽  
Carlos Edo ◽  
Juan Pablo Lozoya ◽  
Francisco Leganés ◽  
...  
Keyword(s):  
Pilot Study ◽  
Dry Deposition ◽  
Expanded Polystyrene ◽  
Ablation Zone ◽  
King George Island ◽  
Plastic Pollution ◽  
Ice Surface ◽  
Local Current ◽  
Daily Changes

Abstract. Plastics have been found in several compartments in Antarctica. However, there is currently no evidence of their presence on Antarctic glaciers. Our pilot study investigated plastic occurrence on two ice surfaces (one area around Uruguay Lake and another one around Ionosferico Lake) that constitute part of the ablation zone of Collins Glacier (King George Island, Antarctica). Our results showed that expanded polystyrene (EPS) was ubiquitous, ranging from 0.17 to 0.33 items m−2, whereas polyester was found only on the ice surface around Uruguay Lake (0.25 items m−2). Furthermore, we evaluated the daily changes in the presence of plastics in these areas in the absence of rainfall to clarify the role of the wind in their transport. We registered an atmospheric dry deposition rate between 0.08 items m−2 d−1 on the ice surface around Uruguay Lake and 0.17 items m−2 d−1 on the ice surface around Ionosferico Lake. Our pilot study is the first report of plastic pollution presence on an Antarctic glacier, possibly originated from local current and past activities and likely deposited by wind transport.

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