A Study of Liquid Sloshing in an Automotive Fuel Tank under Uniform Acceleration

Abstract

Abstract. This paper presents the free surface behaviour of liquid in a partially filled automotive fuel tank under uniformly accelerated motion. The liquid in the fuel tank is subjected to violent sloshing during sudden acceleration or stopping of the vehicle which will produce structural vibration and noise in the passenger compartment. To reduce this sloshing, baffles are used inside the tank. The objective of this work is to study the influence of vertical baffles and fill levels on free surface elevation of liquid in a partially filled fuel tank. The simulation of liquid free surface behaviour under uniform acceleration is done using ANSYS-FLUENT software. A numerical model is developed based on Volume of Fluid (VOF) technique to track the free surface motion of liquid. The explicit time discretization scheme is employed to solve the volume fraction equation. From the numerical analysis, amplitude of free surface elevation and slope of free surface are predicted. Experiments are carried out with transparent fuel tank, fabricated using glass fibre and epoxy resin. A uniform acceleration is applied to the tank and free surface displacements of liquid are captured using high speed camera. Also, an analytical model is formulated to find position of the free surface of liquid in a rectangular container subjected to uniform acceleration. The free surface profiles obtained from the simulations are compared with the experimental results.

Utilizing Artificial Neural Network for Load Prediction Caused by Fluid Sloshing in Tanks

“…where r denotes the vector position, V denotes the solution space, and h denotes the kernel's effective distance. The particle approximation of the function at amparticle, ðrÞ, can be written as follows by discretizing approximation Equation (1).…”

“…Fluid sloshing has a wide variety of uses in the fields of engineering, for example, the construction of fuel tanks for automobiles, containers to carry liquid on roads, ships, and space vessels. As a result, studying the fluid sloshing activity inside a partly filled container is important [1,2]. Sloshing is the movement of liquid inside a partly filled container as a result of external excitations.…”

Análisis bidimensional de la estabilidad de vehículos pesados tipo carro-tanque

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Optimal Design of Isothermal Sloshing Vessels by Entropy Generation Minimization Method

“…Their method was pure numeric, and the optimization was based on the vibration suppression of the liquid motion. Although the problem is a classic case [12][13][14][15][16][17][18][19][20][21][22][23][24][25], the study of its exergy is discussed comprehensively in rare studies [1,26]. The entropy analysis of the flow systems is performed in many flow motions [27][28][29][30][31][32][33][34], as well and the recent developments in fluid modeling [35][36][37][38][39].…”