recirculating flows
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scholarly journals Shape optimisation for faster washout in recirculating flows

2021 ◽  
Vol 914 ◽  
Author(s):  
J.G. Williams ◽  
F. Wechsung ◽  
B.W. Turney ◽  
S.L. Waters ◽  
D.E. Moulton
Keyword(s):  
Shape Optimisation ◽  
Recirculating Flows

Abstract

scholarly journals Unsteady simulation of tonal noise from isolated centrifugal fan

2020 ◽  
Author(s):  
Martin Ottersten ◽  
Huadong Yao ◽  
Lars Davidson
Keyword(s):  
Experimental Data ◽  
Centrifugal Fan ◽  
Acoustic Analogy ◽  
Tonal Noise ◽  
Aerodynamic Properties ◽  
Trailing Edges ◽  
Recirculating Flows ◽  
Unsteady Simulation ◽  
Inlet Duct

In this study, an isolated centrifugal fan is investigated for the aerodynamic and acoustic performances usingRANS and URANS simulations. The noise is predicted by coupling the URANS and the Ffowcs Williams andHawkings acoustic analogy. The aerodynamic properties obtained from RANS and URANS are consistentwith the experimental data. The magnitudes of the tonal noise at the blade passing frequencies are wellpredicted. Recirculating flows, which are responsible for reducing the fan efficiency and increasing the noisegeneration, are observed between the shroud and the blade trailing edges. It is found that the recirculatingflows are associated with the gap between the shroud and the inlet duct.

Flame characteristics depending on recirculating flows in a non-premixed micro combustor with varying baffles

2019 ◽  
Vol 148 ◽  
pp. 591-608 ◽  
Author(s):  
Won Hyun Kim ◽  
Tae Seon Park
Keyword(s):  
Recirculating Flows ◽  
Micro Combustor

Mildly zigzag heat transfer affected by aspect ratios for recirculating flows in rectangular enclosures

2017 ◽  
Vol 107 ◽  
pp. 372-378 ◽  
Author(s):  
Bin Wang ◽  
Tien-Mo Shih ◽  
Bo Tian ◽  
Chen-Xu Wu ◽  
Richard Ru-Gin Chang
Keyword(s):  
Heat Transfer ◽  
Aspect Ratios ◽  
Recirculating Flows

DSMC Acceleration Techniques Applied to Shock Heated and Recirculating Flows

2017 ◽  
Author(s):  
Narendra Singh ◽  
Savio J. Poovathingal ◽  
Thomas E. Schwartzentruber
Keyword(s):  
Acceleration Techniques ◽  
Recirculating Flows

Study of Scale-Adaptive Simulation Model in Recirculating Flows.

2017 ◽  
Author(s):  
Luiz Otavio de Carvalho Bovolato ◽  
Paulo Greco
Keyword(s):  
Simulation Model ◽  
Adaptive Simulation ◽  
Recirculating Flows

A one-equation turbulence model for recirculating flows

2016 ◽  
Vol 59 (6) ◽  
Author(s):  
Yang Zhang ◽  
JunQiang Bai ◽  
JingLei Xu ◽  
Yi Li
Keyword(s):  
Turbulence Model ◽  
Recirculating Flows

Technique to Locate Key Points in Recirculating Flows, Using Pitot Tubes

2013 ◽  
Vol 39 (3) ◽  
pp. 55-68
Author(s):  
D.C. Vaz
Keyword(s):  
Key Points ◽  
Recirculating Flows

A mixed finite element method with time relaxation for recirculating flows: the slip with friction boundary condition

2011 ◽  
Author(s):  
Monika Neda ◽  
Pengtao Sun ◽  
Ilias Kotsireas ◽  
Roderick Melnik ◽  
Brian West
Keyword(s):  
Finite Element Method ◽  
Boundary Condition ◽  
Finite Element ◽  
Mixed Finite Element ◽  
Mixed Finite Element Method ◽  
Time Relaxation ◽  
Recirculating Flows ◽  
Element Method
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