국내 최대 기계 및 로봇 연구정보

공학설계D/B

공학설계D/B 게시판 내용
Volume Title	Transonic Aerodynamics
Volume No	VGK aerofoil method.
DATA Title	VGK method for two-dimensional aerofoil sections. Part 2: user manual for operation with MS-DOS and UNIX systems.
DATA Item	96029
KEYWORD	aerofoil, distribution, drag, flow, lift, pressure, program, transonic, vgk, airfoil
ISBN	0 85679 993 9
ABSTRACT	VGK is introduced in ESDU 96028 and is a computational fluid dynamics method coded in Fortran for predicting the aerodynamic characteristics of a single-element aerofoil in a subsonic freestream, including the effects of viscosity (boundary layers and wake) and shock waves. ESDU 96029 describes the use of the VGK program suite as supplied on disc running under either MS-DOS or UNIX; the source code supplied must be compiled under Fortran 77. Sufficient information is given to enable results to be obtained, but ESDU 96028 should be referred to for the principles and performance of the method, so that the results obtained may be properly assessed. Typical computing time for a single run of VGK using a 80486 DX processor is 90 seconds and using a Pentium processor is 30 seconds. The disc containing the files relating to VGK also contains a liibrarychr(39) of files of aerofoil coordinates. Because of its good performance, VGK can be utilised effectively to investigate a number of factors, such as: the influence of aerofoil geometry (profile and camber) changes on aerofoil characteristics at and around cruise conditions; the influence of changes in Mach number, Reynolds number and transition locations on aerofoil characteristics; the influence of deflection through small angles of leading- and/or trailing-edge flaps; the influence of over-fixing transition in wind-tunnel tests on aerofoils.