Unstable flow theory and modeling
نویسندگان
چکیده
منابع مشابه
Using Steady Flow Force for Unstable Valve Design: Modeling and Experiments
In single stage valves, the main spools are stroked directly by solenoid actuators. They are cheaper and more reliable than multistage valves. Their use, however, is restricted to low bandwidth and low flow rate applications due to the limitation of the solenoid actuators. Our research focuses on alleviating the need for large and expensive solenoids in single stage valves by advantageously usi...
متن کاملModeling and Experimental Study of Flow Forces for Unstable Valve Design
Single stage electrohydraulic flow control valves are currently not suitable in high flow rate and high frequency applications. This is due to the very significant flow induced forces and the power/force limitation of electromagnetic actuators that directly stokes the spool. An unstable valve has been proposed that can utilize the flow forces to achieve fast responses at high flow rate. In this...
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Using the example of a spinless boson field, the structure of the simplest Green’s function is developed to provide a uniform theory of particles, stable and unstable. Some attention is given to the time decay law of unstable particles and it is emphasized that a full account of the relevant physical situation must be contained in its mathematical representation, leading to the conclusion that ...
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Delays associated with elementary interaction processes are investigated. The case of broad resonances is discussed in the context of reaction simulations .
متن کاملLocalization and Periodicity in Unstable Homotopy Theory
In this paper, we develop a hierarchy of natural localizations of spaces, called the vn-periodizations for n 2: 0, which may be used to expose and study periodic phenomena in unstable homotopy theory. These vn-periodizations act less radically than the corresponding homological localizations [2] and respect fibrations to a very considerable extent. A major part of this paper is devoted to devel...
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ژورنال
عنوان ژورنال: Mathematical and Computer Modelling
سال: 2002
ISSN: 0895-7177
DOI: 10.1016/s0895-7177(02)80025-5