Abstract
KEYWORDS:
centrifugal reactive filter, rotor, reaction pipe, non-inertial reference system, flowing equation Bernoulli
ABSTRACT:
This paper presents the theoretical part and the numerical results at the centrifugal reactive filter.
In this first section of the paper is described the running mode and the elements of the centrifugal reactive filter used at the cars engines.
Next, are obtained, concerning a non-inertial reference system, the flowing equation Bernoulli, the forces expressions and the moment coefficients that operate and, in the end, two non-linear equations expressions.
In this non-linear equations composition, during the unknown angular speed and tangential flow rate enters a series constructional data.
The solve of equation system is made through the iterative method Newton-Raphson using a calculus program in Turbo Pascal language.
Using this calculus program is presented the obtained values as graphics varying diverse constructions measures.
The conclusions:
The calculus model used in the paper is a model which watches the friction from the plain bearings on which is turning round the rotor 3.
From the analysis of the charts from pictures 3 and 4 we may conclusionate: the grow of clearance determinates the grow of speed; the angular speed is strong influenced by the clearance, his growing determining a strong grow of angular speed; the linear speed grows once with the grow of clearance, his variation being a lot slower than in case of the angular speed.
Watching the model presented and the numerical results obtained it may pass at designing the centrifugal reactive filter starting from any angular speed (angular speed which influences the well function of the filter) and determination with accuracy clearance.