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Keywords: drag
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2022, 144(10): 101207.
Paper No: FE-22-1102
Published Online: May 19, 2022
...Puxuan Li; Matthew Campbell; Ning Zhang; Steve J. Eckels This study proposes a numerical model to collect and analyze relationships between flow structures and drag forces on a microfin enhanced surface. We utilized a large eddy simulation (LES) with a localized, dynamic kinetic energy, subgrid...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2022, 144(6): 061113.
Paper No: FE-21-1455
Published Online: April 5, 2022
... and drag are compared with the results on the flat substrate. Enhanced drag and significantly enhanced lift are observed as the test particle is situated near the summit of the hill. 1 Corresponding author. e-mail:  LLT0@cdc.gov This work is in part a work of the U.S. Government. ASME disclaims...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021105.
Paper No: FE-18-1156
Published Online: August 16, 2018
... Aerodynamics Compressible flows Drag Free shear layers Gas dynamics Supersonic flows Transonic flows Unsteady flows Wakes Base and afterbody flow constitute an important class of separated flows that govern the performance and stability of an aerospace vehicle. Investigations into the base...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021102.
Paper No: FE-17-1726
Published Online: June 29, 2018
... lock-in error as the difference between Triantafyllou's fish Strouhal number and the tangent of the vortex-shedding angle, an experiment is discussed for measuring the minimum drag of live fish. References [1] Bandyopadhyay , P. R. , 2009 , “ Review: Swimming and Flying in Nature—The Route...
Journal Articles
Publisher: ASME
Article Type: Review Articles
J. Fluids Eng. February 2019, 141(2): 020801.
Paper No: FE-17-1623
Published Online: June 29, 2018
... control devices have been used over the years to control flow separation on airfoils and, in modern times, pneumatic blowing and synthetic jet actuators have been employed to prevent flow separation and increase base pressure at the rear of road vehicles [ 57 , 58 ]. This, in turn, leads to drag reduction...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011103.
Paper No: FE-18-1056
Published Online: June 27, 2018
... analysis are also carried out for the pitching blade. The performance of the investigated turbulence models is evaluated at various critical points on the hysterias loop of lift and drag coefficients. The predictions of the investigated turbulence models are in good agreement at lower angle of attack, i.e...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121202.
Paper No: FE-17-1634
Published Online: June 26, 2018
... OF F LUIDS E NGINEERING . Manuscript received October 3, 2017; final manuscript received May 18, 2018; published online June 26, 2018. Assoc. Editor: Samuel Paolucci. 03 10 2017 18 05 2018 Aerodynamics Computational fluid dynamics Drag Lift Unsteady flows Wakes Flow...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121101.
Paper No: FE-17-1509
Published Online: June 13, 2018
... configuration is actuated by means of a synthetic jet boundary condition. Overall, the effect of the actuation is beneficial. The actuation of the AFC decreases drag, stabilizes the flow, and reduces the size of the side recirculation bubble. 1 Corresponding author. Contributed by the Fluids...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2018, 140(10): 101108.
Paper No: FE-17-1573
Published Online: May 18, 2018
...Upender K. Kaul; Nhan T. Nguyen A Reynolds-averaged Navier–Stokes (RANS) computational study was conducted to investigate the effect of various variable camber continuous trailing edge flap (VCCTEF) configurations on the lift and drag of a NASA generic transport model (GTM) wing section. Out...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061205.
Paper No: FE-17-1104
Published Online: March 27, 2018
... width, ( 19.28 mm ≤ W ≤ 25.75 mm ), and angle of attack, ( 0 deg ≤ ψ ≤ 12.6 deg ). A total of six wheels and five tires were tested. Coefficient of drag area ( C d A ) and coefficient of side force area ( C s A ) versus angle of attack (ψ) were measured using a multi-axis force transducer. Wind tunnel...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051204.
Paper No: FE-17-1437
Published Online: January 24, 2018
...Xin Zhang; Xili Duan; Yuri Muzychka Flow drag reduction induced by chemical additives, more commonly called drag-reducing agents (DRAs), has been studied for many years, but few studies can manifest the mechanism of this phenomenon. In this paper, a new mathematical model is proposed to predict...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051202.
Paper No: FE-17-1103
Published Online: January 9, 2018
... 11 2017 Bubbly flows Drag Fluid transients Gas-liquid Hydrodynamics Unsteady flows Slug flow that contains Taylor bubbles is considered as one of the two-phase flow regimes occurring inside pipes over a wide range of gas and liquid flow rates. Slug flow may cause water hammer...
Topics: Bubbles, Pipes
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051101.
Paper No: FE-17-1300
Published Online: December 26, 2017
...Michell Luiz Costalonga; Bruno Venturini Loureiro; Edson J. Soares We analyze the use of water solutions of Xanthan Gum (XG) for drag reduction (DR) in annular spaces. We provide a direct quantitative comparison between the DR in an annulus and that in straight tubes. We can fairly compare the data...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. April 2018, 140(4): 041202.
Paper No: FE-17-1283
Published Online: November 17, 2017
... Drag Flows in biological systems Fluid-structure interaction Naval hydrodynamics Turbulence Unsteady flows The world is becoming acoustically noisier. For example, due to the rapid rise in shipping, the low-frequency ambient acoustic noise in the ocean is increasing at an average rate...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. March 2018, 140(3): 031204.
Paper No: FE-17-1224
Published Online: October 19, 2017
... be expressed as (19) μ = μ 1 + μ 2 where λ is the frictional drag coefficient; L is the total length of pipeline; D is the pipe diameter; K 1 is the pipe wall roughness; R e is the Reynolds number, R e = V D / γ...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2017, 139(12): 121204.
Paper No: FE-16-1495
Published Online: September 20, 2017
... in the J OURNAL OF F LUIDS E NGINEERING . Manuscript received August 4, 2016; final manuscript received July 26, 2017; published online September 20, 2017. Assoc. Editor: Samuel Paolucci. 04 08 2016 26 07 2017 Boundary layers Drag Turbulence Engineering practitioners need...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2018, 140(1): 011104.
Paper No: FE-17-1171
Published Online: September 20, 2017
..., 2017; published online September 20, 2017. Assoc. Editor: Hui Hu. 20 03 2017 06 08 2017 Aerodynamics Boundary layers Drag Experimental techniques Lift Measurement techniques PIV Turbulence Vortices Fluid mechanics As the unmanned aerial vehicles avoid risks...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2017, 139(10): 101102.
Paper No: FE-16-1437
Published Online: July 19, 2017
... 11, 2016; final manuscript received May 2, 2017; published online July 19, 2017. Assoc. Editor: Feng Liu. 11 07 2016 02 05 2017 Aerodynamics Drag Lift Low Reynolds number flows are associated with a range of unique fluidic phenomena [ 1 ]. Notable are the presence...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2017, 139(10): 101204.
Paper No: FE-17-1081
Published Online: July 18, 2017
... received February 6, 2017; final manuscript received April 27, 2017; published online July 18, 2017. Assoc. Editor: John Abraham. 06 02 2017 27 04 2017 Boundary layers Drag Gas dynamics Measurement techniques PIV Fluid mechanics Wall shear stress τ w is an important...