Advances in Unsteady Boundary Layer Transition Research, Part II: Experimental Verification
نویسندگان
چکیده
منابع مشابه
Drizzle in Stratiform Boundary Layer Clouds. Part II: Microphysical Aspects
This is the second of two observational papers examining drizzle in stratiform boundary layer clouds. Part I details the vertical and horizontal structure of cloud and drizzle parameters, including some bulk microphysical variables. In this paper, the focus is on the in situ size-resolved microphysical measurements, particularly of drizzle drops (r 20 m). Layer-averaged size distributions of dr...
متن کاملDNS of unsteady shock boundary layer interaction
A novel numerical scheme has been developed to simulate high speed viscous flows in complex geometries using unstructured grids. A characteristic–filter based shock capturing scheme is applied as a corrector step to a non–dissipative predictor scheme. This algorithm is being used to study shock turbulent boundary layer interactions and this paper presents the results of a turbulent flow at Mach...
متن کاملControl Parameters for Boundary-Layer Instabilities in Unsteady Shock Interactions
This article presents the computation of a set of control parameters for the deterministic prediction of laminar boundary-layer instabilities induced by an imposed unsteady shock interaction. The objective of the study is exploratory in nature by computing a supersonic flight environment for flow over a blunt body and the deterministic prediction of the spectral entropy rates for the boundary l...
متن کاملAnalysis of unsteady effects in shock/boundary layer interactions
The dynamics of interactions between impinging shock waves and turbulent boundary layers in supersonic flow is analyzed by mining a LES database developed for several strengths of the incoming shock. The primary effect of increasing the strength of the interaction is an increase in the size of the interaction zone and the formation of a sizeable recirculation bubble. A side consequence of the t...
متن کاملHelical modes in boundary layer transition
Observations are presented to show that in an adverse pressure gradient boundary layer, beneath free-stream turbulence, the interaction between Klebanoff streaks and naturally arising instability waves leads to helical disturbances which break down to form turbulent spots. This occurs under low to moderate levels, 1%–2%, of free-stream turbulence. At high levels of free-stream turbulence, conve...
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: International Journal of Rotating Machinery
سال: 2003
ISSN: 1023-621X
DOI: 10.1155/s1023621x03000022