... 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...

... 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...

... 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...

... for Predicting the Stability of Aerodynamically Excited Turbomachinery ,” ASME J. Turbomach. , 129 ( 4 ), pp. 724 – 729 . 10.1115/1.2720870 [6] Pollman , E. , Schwerdtfeger , H. , and Termuehlen , H. , 1978 , “ Flow Exited Vibrations in High-Pressure Turbines (Steam Whirl) ,” ASME J. Eng...

...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...

.... A. , Páscoa , J. C. , and Xisto , C. M. , 2016 , “ Aerodynamic Optimization of Cyclorotors ,” Aircr. Eng. Aerosp. Technol. , 88 ( 2 ), pp. 232 – 245 . 10.1108/AEAT-02-2015-0051 [2] Gagnon , L. , Morandini , M. , Quaranta , G. , Masarati , P. , Xisto , C. M. , and Páscoa...

... 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 cylinder, and due...

... – ω were better than those of the shear stress transport (SST) transition. Aerodynamics Computational fluid dynamics Experimental techniques Stability Turbulence modeling Transition Low aspect ratios (AR) wing flows are quite important in terms of aerodynamics of micro-air vehicles...

... OURNAL OF F LUIDS E NGINEERING . Manuscript received August 18, 2017; final manuscript received May 2, 2018; published online June 13, 2018. Assoc. Editor: Jun Chen. 18 08 2017 02 05 2018 Aerodynamics Computational fluid dynamics Drag Turbulence Turbulence modeling Wakes...

... 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...

... for public release; distribution is unlimited. 09 09 2017 16 04 2018 Aerodynamics Compressible flows Computational fluid dynamics Drag RANS simulations Shocks Transonic flows Unsteady flows The aircraft industry has been responding to the need for energy-efficient...

...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...

.... , 1999 , Intake Aerodynamics (AIAA education series), 2nd ed. , E. L. Goldsmith , ed., American Institute of Aeronautics and Astronautics , Oxford, UK. [2] Guo , R. W. , and Seddon , J. , 1983 , “ The Swirl in an S-Duct of Typical Air Intake Proportions ,” Aeronaut. Q. , 34 ( 2...

.... 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...

...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...

...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...

... ∞ = freestream velocity α i = spatial growth rate γ = resolved-to-total turbulent kinetic energy References [1] Lei , J. , and He , J. , 2015 , “ Adjoint-Based Aerodynamic Shape Optimization for Low Reynolds Number Airfoils ,” ASME J. Fluids Eng. , 138 ( 2 ), p. 021401...

... for 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 airfoil...

... by the Fluids Engineering Division of ASME for publication in the J OURNAL OF F LUIDS E NGINEERING . Manuscript received August 19, 2017; final manuscript received December 13, 2017; published online February 23, 2018. Assoc. Editor: Daniel Livescu. 19 08 2017 13 12 2017 Aerodynamics...

... 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...