American Journal of Aerospace Engineering
Volume 3, Issue 1, February 2016, Pages: 1-5
Received: Feb. 17, 2016;
Accepted: Mar. 19, 2016;
Published: Apr. 6, 2016
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N. I. Klyuev, Department of Mathematical Modeling in Mechanics, Samara State Aerospace University, Samara, Russia
In this paper we consider the problem of mathematical modeling of fluid flow in the vertical channel of fuel management system. The system has a vertical measuring channel with sensors inside the channel for fixing the free surface level of fluid in the channel. By lowering the level of fuel in the tank fuel level decreases in the channel. When the level of fuel in the channel reaches the sensor, the sensor activation occurs. Thus, the level of fuel in the channel determining fuel level in the tank. Fluid flow in the vertical measuring channel describes by non-stationary equation of motion of parabolic type. For dynamic modeling used a viscous incompressible fluid. The fluid flow is called non-stationary parabolic equation of motion for the cylindrical channel. We got an approximate solution of the problem by averaging the terms of the equation of motion for the channel radius. The solution of the differential equation is satisfied in the package Mathcad applications. Graphs of displacement and velocity of the free surface of fuel in the measuring channel are represented over time. Measurement error of liquid level in the fuel tank has been determined. It is proposed engineering solution to eliminate error of the fuel level measurement.
N. I. Klyuev,
Measurement of the Liquid Level in the Fuel Tank of Rocket, American Journal of Aerospace Engineering.
Vol. 3, No. 1,
2016, pp. 1-5.
Copyright © 2016 Authors retain the copyright of this article.
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