Abstract
Longitudinal and lateral liquid sloshing in a partially filled tanker affect the braking performance of the tankers. The movement during braking of the liquid load is determined by the change in the position of the centre of gravity of the load inside the vehicle. Becoming an undesirable phenomenon when analyzing the performance of the vehicle braking manoeuver. In this paper modelling of the behaviour of the cross-section circular tank with baffles, partially filled with liquid agro-food products, was performed, which performs a braking manoeuver. Two different fluids have been used to simulate the sloshing effect of agro-food liquid cargo and study the behaviour of the tank. In to order generate the geometric model of the tank was done by using SolidWorks, and simulating the behaviour of the tank and cargo with agro-food products during the ANSYS-CFX braking manoeuver. A sequence of numerical experiments has been carried out to estimate the pressure developed over the tanker wall and the free surface displacement of the fluids for different fill levels. Simulations with the two liquids and the results obtained were compared to be able to analyze the behaviour of the tank partially filled into a braking manoeuver.
Highlights
Sloshing has been described by the researchers as different: as a dynamic load acting on the tanker structure due to the movement of a fluid with a limited free surface inside the tank [1], or a strong movement of fluid from a moving tank [9]
In this chapter a sequence of numerical experiments carried out to estimate the pressure developed over the tanker wall and the free surface displacement of the fluids for different fill levels and velocity
Simulations with the two fluids and the results obtained are compared to be able to analyze the behavior of the tank partially filled into a braking maneuver
Summary
Sloshing has been described by the researchers as different: as a dynamic load acting on the tanker structure due to the movement of a fluid with a limited free surface inside the tank [1], or a strong movement of fluid from a moving tank [9]. In modeling the behavior of tankers, account is taken of tank geometry; fill level; lateral and longitudinal force during typical maneuvers and dynamic interactions of the liquid structure [2]. The ADR standard [3] specifies the detailed requirements for different tankers, as the structure shall of the tanks must resist an acceleration of 2g in vertical and longitudinal direction and 1g in lateral direction. The problem of partially filled tanker behavior with liquid products inside of which sloshing occurs has led of researchers to use different study methods and techniques. Salem et al (2000) demonstrated that partially filled tankers undergoing turns or lane change maneuvers have a lower rollover threshold than any other type of vehicle [4]
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