Impact of Baffle on Liquid Structure Connection in Fuel Tank Sloshing

Sloshing refers to the highly random motion of any fluid inside an object where the dynamic forces of the liquid can interact with the object to alter the overall system dynamics. This work summarises the process of designing and simulating the 3-D geometry of a fuel tank using CFD and the volume of fluid (VOF) method considering multi-phase fluid flow predicting fuel slosh movement at a specific capacity within a definite fixed volume.[13-16] As the performance of the engine heavily depends on a constant supply of fuel, the splashing of gasoline inside the partially filled fuel tank can severely affect the performance when subjected to sudden left and right turns during a Slalom in FSAE tracks. This scenario can be modelled, analysed and effectively controlled by reducing pressure intensities inside the tank walls using a set of strategically placed Baffles. Therefore, this study attempts to reduce the sloshing behaviour by considering multiple types of geometries and shows the final geometry chosen using computational simulations inside the fuel tank considering 1.5 litres of fuel and remaining with air inside a 7.3 litres fuel tank, thus predicting the effect of sloshing forces and moments inside the tank structure considering lateral and longitudinal acceleration fields. The model is discussed and results are presented. In addition, this paper can be referred to as a detailed tutorial on how to simulate and take in consideration of all the factors which will be useful in deciding vehicle fuel requirements and optimum design.

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Fluid Structure Interaction Simulation of Automotive Fuel Tank Sloshing using Nonlinear Fluid Properties

10.4271/2015-26-0240 ◽

2015 ◽

Cited By ~ 1

Author(s):

Avinash Dhole ◽

Chetan Raval ◽

Rishi Shrivastava

Keyword(s):

Fluid Structure Interaction ◽

Fuel Tank ◽

Fluid Structure ◽

Structure Interaction ◽

Automotive Fuel ◽

Fluid Properties ◽

Interaction Simulation ◽

Tank Sloshing ◽

Nonlinear Fluid

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DOE study of ‘the effect of various parameters on fuel tank sloshing using multiphase CFD’

International Journal of Ambient Energy ◽

10.1080/01430750.2018.1451383 ◽

2018 ◽

Vol 42 (1) ◽

pp. 1-10

Author(s):

Supriya J. Magdum ◽

Alokekumar Das ◽

Vinayak Shetty ◽

R. Sivakumar ◽

G. Sakthivel

Keyword(s):

Fuel Tank ◽

Multiphase Cfd ◽

Tank Sloshing

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Computational Simulation of Fuel Tank Sloshing using CFD Techniques

10.4271/2013-01-2868 ◽

2013 ◽

Cited By ~ 3

Author(s):

Tarun K. Chitkara ◽

Zubairkhan Kittur ◽

Rajiv Soman

Keyword(s):

Computational Simulation ◽

Fuel Tank ◽

Tank Sloshing

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Study of Fuel Tank Sloshing Noise Prediction

10.4271/2005-08-0174 ◽

2005 ◽

Cited By ~ 1

Author(s):

Tohru Wako

Keyword(s):

Fuel Tank ◽

Noise Prediction ◽

Tank Sloshing

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Liquid fuel sloshing control of an automotive fuel tank

Noise & Vibration Worldwide ◽

10.1177/0957456519860849 ◽

2019 ◽

Vol 50 (7) ◽

pp. 227-236

Author(s):

Yirong He ◽

Zhixin Zeng ◽

Yanglei Yu ◽

Dengfang Ruan

Keyword(s):

Liquid Fuel ◽

Evaluation Method ◽

Structural Characteristics ◽

Subjective Evaluation ◽

Fuel Tank ◽

Test Results ◽

Vibration Acceleration ◽

Monitoring Point ◽

Automotive Fuel ◽

Tank Sloshing

In order to reduce the influence of fuel sloshing on the interior noise of a passenger car, the fuel tank sloshing noise was first evaluated with a subjective evaluation method to determine the driving cycle of the car and the fuel filling percentage of the fuel tank in which the fuel tank sloshing noise is serious, and then two anti-wave boards with different structural characteristics were designed to reduce the fuel sloshing. On this basis, fuel sloshing in the fuel tank equipped with the newly designed and original anti-wave boards was simulated numerically; then, the anti-wave board with the best effect of inhibiting fuel from sloshing was selected based on the numerical results; finally, the anti-sloshing effect of the selected board was evaluated through the car road test. The test results show that the vibration acceleration magnitude at each monitoring point of the tank with the selected anti-wave board is significantly reduced compared with the original fuel tank, which indicates that the selected anti-wave board inhibits fuel from sloshing greatly.

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