scholarly journals Unsteady Flowfield Around Tandem Cylinders as Prototype Component Interaction in Airframe Noise

AIAA Journal ◽  
2007 ◽  
Vol 45 (8) ◽  
pp. 1930-1941 ◽  
Author(s):  
Mehdi R. Khorrami ◽  
Meelan M. Choudhari ◽  
David P. Lockard ◽  
Luther N. Jenkins ◽  
Catherine B. McGinley
Keyword(s):  
Airframe Noise ◽  
Component Interaction ◽  
Tandem Cylinders

scholarly journals Airframe Noise Component Interaction Studies

1980 ◽  
Vol 17 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Martin R. Fink ◽  
Robert H. Schlinker
Keyword(s):  
Noise Component ◽  
Airframe Noise ◽  
Component Interaction ◽  
Interaction Studies

Quantitative component interaction

2017 ◽  
Author(s):  
Kie Zuraw
Keyword(s):  
Phase Boundary ◽  
Syntactic Structure ◽  
Component Interaction ◽  
Phonological Rule

This chapter examines the phonological rule of nasal substitution in Tagalog, specifically its rate of application in different constructions. Nasal substitution can occur whenever a prefix that ends in /ŋ/ attaches to a stem beginning with an obstruent, as in /maŋ + bigáj/ → [mamigáj] ‘to distribute’. Different prefixes trigger nasal substitution at different rates. This is similar to cases in which word-internal syntactic structure determines how and whether a phonological rule applies (e.g. Newell and Piggott 2014), but different because none of these words’ syntactic structure absolutely prevents nasal substitution, such as by placing a phase boundary between the prefix and stem. The focus of the chapter is on laying out the data, but it does suggest three possible interpretations: variable syntactic structure, a phonology directly sensitive to prefix identity, or competition between productive syntactic structure and lexicalized pronunciation.

scholarly journals Interactions between Tandem Cylinders in an Open Channel: Impact on Mean and Turbulent Flow Characteristics

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1718
Author(s):  
Hasan Zobeyer ◽  
Abul B. M. Baki ◽  
Saika Nowshin Nowrin
Keyword(s):  
Turbulent Flow ◽  
Open Channel ◽  
Recirculation Zone ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Flow Recirculation ◽  
Tandem Cylinders ◽  
Flow Development ◽  
The Mean ◽  
Recirculation Length

The flow hydrodynamics around a single cylinder differ significantly from the flow fields around two cylinders in a tandem or side-by-side arrangement. In this study, the experimental results on the mean and turbulence characteristics of flow generated by a pair of cylinders placed in tandem in an open-channel flume are presented. An acoustic Doppler velocimeter (ADV) was used to measure the instantaneous three-dimensional velocity components. This study investigated the effect of cylinder spacing at 3D, 6D, and 9D (center to center) distances on the mean and turbulent flow profiles and the distribution of near-bed shear stress behind the tandem cylinders in the plane of symmetry, where D is the cylinder diameter. The results revealed that the downstream cylinder influenced the flow development between cylinders (i.e., midstream) with 3D, 6D, and 9D spacing. However, the downstream cylinder controlled the flow recirculation length midstream for the 3D distance and showed zero interruption in the 6D and 9D distances. The peak of the turbulent metrics generally occurred near the end of the recirculation zone in all scenarios.

scholarly journals Flow states and transitions in flows past arrays of tandem cylinders

2021 ◽  
Vol 910 ◽  
Author(s):  
Negar Hosseini ◽  
Martin D. Griffith ◽  
Justin S. Leontini
Keyword(s):  
Tandem Cylinders ◽  
Flow States

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