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Keyword: Aerodynamics
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Journal Articles
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
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111203.
Paper No: FE-17-1835
Published Online: August 6, 2018
... Engineering Division of ASME for publication in the J OURNAL OF F LUIDS E NGINEERING . Manuscript received December 29, 2017; final manuscript received July 5, 2018; published online August 6, 2018. Assoc. Editor: Moran Wang. 29 12 2017 05 07 2018 Aerodynamics Lift Unsteady flows...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111108.
Paper No: FE-18-1194
Published Online: August 6, 2018
... approaches on the flow field around trains, which affects the surface pressure and consequently the aerodynamic forces of the train, was not properly investigated in terms of their influence flow field. The SST and improved delayed detached eddy simulation (IDDES) turbulence models have been tested in this...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011105.
Paper No: FE-17-1550
Published Online: June 29, 2018
... 2018 Aerodynamics Pumps Stability Turbomachines Transition For rocket engines, reliability is the key design issue, given the very costly payloads and the task of placing astronauts in orbit. The function of the rocket engine turbopump is to pump fuel under pressure ranging from...
Journal Articles
Article Type: Review Articles
J. Fluids Eng. February 2019, 141(2): 020801.
Paper No: FE-17-1623
Published Online: June 29, 2018
...O. H. Ehirim; K. Knowles; A. J. Saddington The ground-effect diffuser has become a major aerodynamic device on open-wheel racing and sports cars. Accordingly, it is widely considered to be indispensable to their aerodynamic performance, largely due to its significant downforce contribution. However...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011103.
Paper No: FE-18-1056
Published Online: June 27, 2018
... F LUIDS E NGINEERING . Manuscript received January 26, 2018; final manuscript received May 10, 2018; published online June 27, 2018. Assoc. Editor: Philipp Epple. 26 01 2018 10 05 2018 Aerodynamics Boundary layers Computational fluid dynamics Drag Fluid transients RANS...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121202.
Paper No: FE-17-1634
Published Online: June 26, 2018
... and variation in aerodynamic forces. The simulations are carried out for various nondimensional rotation rates, axis ratio (AR) of the cylinder, and shear parameter. In shear flow past rotating elliptic cylinder, the negative vortices are sustained for longer distances in the downstream of the...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121101.
Paper No: FE-17-1509
Published Online: June 13, 2018
... aerodynamic performance and to reduce the side recirculation bubbles. The remainder of the paper is organized as follows: Sec. 2 details the numerical setup and formulation. Section 3 is divided into three main parts: first, the results regarding the validation of PANS compared to resolved LES...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121102.
Paper No: FE-17-1695
Published Online: June 13, 2018
...; published online June 13, 2018. Assoc. Editor: Oleg Schilling. 27 10 2017 03 05 2018 Aerodynamics Computational fluid dynamics Experimental techniques Stability Turbulence modeling Transition Low aspect ratios (AR) wing flows are quite important in terms of aerodynamics of...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111105.
Paper No: FE-17-1684
Published Online: June 4, 2018
... 2017 18 04 2018 Aerodynamics Complex flows Computational fluid dynamics Vortices The flow around passenger cars is characterized by various areas where flow separation can be observed. Regions with reversed flow, such as the rear wake or the wheel wake, create high energy losses...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. October 2018, 140(10): 101108.
Paper No: FE-17-1573
Published Online: May 18, 2018
.... This station is called the wing break station. The wing break station was selected since the chord at that location is very close to the mean aerodynamic chord of the wing. The airfoil has a chord length of 173 in. The VCCTEF overall flap chord is 54 in measured from the first hinge line. The flow...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. September 2018, 140(9): 091102.
Paper No: FE-17-1625
Published Online: April 19, 2018
...O. H. Ehirim; K. Knowles; A. J. Saddington; M. V. Finnis A ground-effect diffuser is an upward-sloping section of the underbody of a racing car that enhances aerodynamic performance by increasing the downforce, thus improving tire grip. The downforce generated by a diffuser can be increased by...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. September 2018, 140(9): 091101.
Paper No: FE-17-1317
Published Online: April 19, 2018
... Engineering Division of ASME for publication in the J OURNAL OF F LUIDS E NGINEERING . Manuscript received June 1, 2017; final manuscript received December 25, 2017; published online April 19, 2018. Assoc. Editor: Satoshi Watanabe. 01 06 2017 25 12 2017 Aerodynamics Fluid instability...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. July 2018, 140(7): 071103.
Paper No: FE-17-1465
Published Online: March 16, 2018
.... 29 07 2017 22 11 2017 Aerodynamics Cavity flows Compressible flows Supersonic flows Unsteady flows Studies on cavity flows are reported since past few decades due to its wide range of applications. Specifically cavity flows are involved in the landing gear undercarriage...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. July 2018, 140(7): 071104.
Paper No: FE-17-1576
Published Online: March 16, 2018
...T. Lee; L. S. Ko The ground effect on the aerodynamic loading and leading-edge vortex (LEV) flow generated by a slender delta wing was investigated experimentally. Both the lift and drag forces were found to increase with reducing ground distance (up to 50% of the wing chord). The lift increment...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. July 2018, 140(7): 071202.
Paper No: FE-17-1555
Published Online: March 13, 2018
...T. Lee; V. Tremblay-Dionne The aerodynamic properties and flowfield of a NACA 0015 airfoil over a wavy ground were investigated experimentally via surface pressure and particle image velocimetry (PIV) measurements. Flat-surface results were also obtained to be served as a comparison. For the wavy...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061104.
Paper No: FE-17-1384
Published Online: March 13, 2018
... the symmetric NACA 0012 airfoil and these are used to validate the LESs. Good agreement between computed and experimentally observed coefficients is found confirming the accuracy of the method. The influence of foil asymmetry on the aerodynamic coefficients is analyzed by subjecting a NACA 4412...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. July 2018, 140(7): 071201.
Paper No: FE-17-1526
Published Online: March 13, 2018
... received August 23, 2017; final manuscript received January 5, 2018; published online March 13, 2018. Assoc. Editor: Hui Hu. 23 08 2017 05 01 2018 Aerodynamics LES Stability Transition In a growing number of applications, the flow over airfoils at low Reynolds number is of...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061403.
Paper No: FE-17-1514
Published Online: February 23, 2018
... Aerodynamics Boundary layers Compressible flows Turbulence Turbulence modeling Computational aerodynamics plays a critical role in aircraft and missile aerodynamic design. An accurate prediction of flow-fields even for complex (with respect to geometry) flow simulations with low-computational cost...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061402.
Paper No: FE-17-1314
Published Online: February 6, 2018
... turbine is adopted to validate the developed method. By the method, the process of grid generation becomes very simple and the unsteady data transferring between stator and rotor is realized without the process of being averaged or weighted. Based on the analysis of some important aerodynamic parameters...