Velocity distribution as a result of the interaction between organizational processes in shear flows
Journal Title: INCAS BULLETIN - Year 2014, Vol 6, Issue 4
Abstract
This paper continues the recent research of the authors concerning the interaction between the micro and macro flow structure domains (further on called IPmMD). The authors propose a probabilistic type approach of the IPmMD, in plane boundary layer, channel and pipe flows. This process, purely theoretical expressed by using transformations associated to transversal coordinate, tends to ensure the equipartition of the kinetic energy and to lead to a minimum in information transmission in the space-time ensemble. Taking into account several velocity distributions as not mutually exclusive events, new distributions are obtained by a probabilistic type union of the events. These new distributions present important aspects related to the classical transition from the laminar-to-turbulent regime. In this way, as an example, the parabolic-laminar and the linear distributions lead to a velocity distribution very close to experimental data corresponding to the rough pipe flow.
Authors and Affiliations
SAVULESCU Stefan , BALTARETU Florin
Keywords
Related Articles
- EP ID EP158136
- DOI 10.13111/2066-8201.2014.6.4.8
- Views 61
- Downloads 0
Tribological performance of the blend PBT and short aramid fibers
Polybutylene terephthalate (PBT) and its aramid fiber composite (10 wt.%) were investigated in order to measure their wear and frictional properties under variations of applied load (5 N, 10 N, 15N) and velocity (0.25 m/...
Structural health monitoring with piezoelectric wafer active sensors – predictive modeling and simulation
This paper starts a review of the state of the art in structural health monitoring with piezoelectric wafer active sensors and follows with highlighting the limitations of the current approaches which are predominantly e...
Twisted Contact Structures in Turbulent Flows
The “hairpin” vortical structure initiated from a conceptual model of Theodorsen refers to a Ω-shaped vortex with two streamwise-oriented legs connected via a raised spanwise-oriented arch. Both computational and experim...
Near Optimal Explicit Guidance Law with Impact Angle Constraints for a Hypersonic Re-entry Vehicle
Two guidance laws are discussed in this paper. The first one is the Vector guidance law. This guidance law when equipped with the appropriate gains has the capability to hit a target at the desired impact angle. A parame...
COMPARATIVE ANALYSIS OF TRANSPORT AIRCRAFT, BACKROUND FOR SHORT/ MEDIUM COURIER TRANSPORT AIRCRAFT PROCUREMENT
In accordance with Air Force requirements, the comparative analysis of short/medium transport aircraft comes to sustain procurement decision of short/medium transport aircraft. This paper presents, in short, the principl...