Stone Stability under Stationary Nonuniform Flows
نویسندگان
چکیده
منابع مشابه
Digital Repetitive Control under Nonuniform Sampling: An LMI Stability Analysis
Digital repetitive control is a technique which allows tracking periodic references and/or rejecting periodic disturbances. Repetitive controllers are usually designed assuming a fixed fundamental frequency for the signals to be tracked/rejected and its main drawback being a dramatic performance decay when this frequency varies. A usual approach to overcome the problem consists of an adaptive c...
متن کاملOn L 1 - Stability of Stationary Navier - Stokes Flows in
Stability of stationary Navier-Stokes flows in , n ≥ 3, is discussed in the function space L or H (Hardy space). It is shown that a stationary flow w is stable in H (resp. L) if sup |x| · |w(x)| + sup |x|2|∇w(x)| (resp. ‖w‖(n,1) + ‖∇w‖(n/2,1)) is small. Explicit decay rates of the form O(t−β/2), 0 < β ≤ 1, are deduced for perturbations under additional assumptions on w and on initial data. The ...
متن کاملInternal wave transmission in nonuniform flows
We compute transmission coefficients for internal waves propagating in a fluid with continuously varying stratification and background shear. In stationary fluid the transmission is characterized by the ratio of transmitted to incident energy. More generally, transmission across the shear is appropriately characterized by the ratio of transmitted to incident pseudoenergy flux. First, we examine...
متن کاملOn a generalized approach to the linear stability of spatially nonuniform thin film flows
The presence of a deformable free surface in thin films driven to spread by body or shear forces gives rise to base states that are spatially nonuniform. This nonuniformity produces linearized disturbance operators that are non-normal and an eigenvalue spectrum that does not necessarily predict stability behavior. The falling film provides a simple example for demonstrating a more generalized, ...
متن کاملStability of One Bay Symmetrical Frames with Nonuniform Members
This paper deals with simple portal or gable steel frames with varying moment of inertia. Critical load for such frames is calculated by means of a very simple and approximate method through which the variation of moment of inertia for the members is considered by a quadratic function and then the equilibrium and continuity conditions have been used. The degree of precision of this method has b...
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: Journal of Hydraulic Engineering
سال: 2016
ISSN: 0733-9429,1943-7900
DOI: 10.1061/(asce)hy.1943-7900.0001202