Unsteady aerodynamic characteristics of oscillating cascades with tip clearance. 3rd report. Theoretical analysis for loaded cascade.
نویسندگان
چکیده
منابع مشابه
Unsteady Transonic Aerodynamic Analysis for Oscillatory Airfoils and Oscillating Flaps Using Dynamic Mesh
This paper presents an algorithm for unsteady transonic aerodynamic analysis by solving the two-dimensional unsteady Euler equations using a dynamic mesh algorithm. The driving algorithm is an upwind biased implicit second order accurate cell-centered finite volume scheme. The spatial discretization technique involves a naturally dissipative flux-split approach that accounts for the local wave ...
متن کاملAcquiring and Modeling Unsteady Aerodynamic Characteristics
In order to develop and demonstrate a systematic approach to assessing and modeling dynamic characteristics for advanced configurations, a comprehensive dynamic wind tunnel test program was conducted for the F-16 and the F-22 at the 12-ft Vertical Wind Tunnel at WPAFB. Using the recently-developed Multi-Axis Test rig, body-axis forced oscillation, velocityvector steady rotation, and the new com...
متن کاملUnsteady turbulence cascades.
We have run a total of 311 direct numerical simulations (DNSs) of decaying three-dimensional Navier-Stokes turbulence in a periodic box with values of the Taylor length-based Reynolds number up to about 300 and an energy spectrum with a wide wave-number range of close to -5/3 power-law dependence at the higher Reynolds numbers. On the basis of these runs, we have found a critical time when (i) ...
متن کاملUnsteady Aerodynamic Analysis of a Bird-Damaged Turbofan
The unsteady aerodynamic behavior of a bird-damaged fan stage at the inlet of a highbypass turbofan engine is examined with a computational fluid dynamics (CFD) aerodynamic model suitable for use in an aeroelastic response calculation. ANSYS CFX, a commercially available CFD solver, is utilized to perform the steady-state and unsteady CFD calculations for the undamaged and damaged fan. The dama...
متن کاملUnsteady aerodynamic forces of a flapping wing.
The unsteady aerodynamic forces of a model fruit fly wing in flapping motion were investigated by numerically solving the Navier-Stokes equations. The flapping motion consisted of translation and rotation [the translation velocity (u(t)) varied according to the simple harmonic function (SHF), and the rotation was confined to a short period around stroke reversal]. First, it was shown that for a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
سال: 1990
ISSN: 0387-5016,1884-8346
DOI: 10.1299/kikaib.56.2957