An Experimental Study of Sloshing Noise in a Partially Filled Rectangular Tank

Agawane, G.; Jadon, Varun; Venkatesham, B; Banerjee, Raja

doi:10.4271/2017-01-9678

Cited by 8 publications

(8 citation statements)

References 23 publications

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“…In addition, noise may be generated when the liquid sloshes. To understand the dynamics of liquid sloshing and the noise generation mechanism, Agawane et al [7] performed an experimental study in a partially filled rectangular tank. The sloshing phenomenon inside the tank was classified as non-linear and linear flow regimes.…”

Section: Introductionmentioning

confidence: 99%

“…Dynamic activities in the non-linear regime were the source of sloshing noise generation. Different from the work of Agawane et al [7], in order to reduce the noise impact caused by liquid fuel sloshing inside the tank, He et al [8] carried out related numerical simulation work. They chose to install anti-wave boards in the fuel tank and monitor the vibration acceleration in the fuel tank.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Study of the Filling Process of a Liquid Hydrogen Storage Tank under Different Sloshing Conditions

Wei

Zhang

2020

Processes

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Cryogenic vessels are widely used in many areas, such as liquefied natural gas (LNG), aerospace, and medical fields. A suitable filling method is one of the prerequisites for the effective use of cryogenic containers. In this study, the filling process for the sloshing condition of a liquid hydrogen storage tank is numerically simulated and analyzed by coupling the sloshing model and the phase-change model. The effects of different sloshing conditions during the filling process are investigated by changing the amplitude and frequency of the sloshing. Within the scope of this study, there is a critical value for the effect of sloshing conditions on the pressure curve during the filling process. The critical value corresponds to a frequency f equal to 3 Hz and an amplitude A equal to 0.03 m. According to the simulation results, when the sloshing exceeds the critical value, the internal pressure curve of the storage tank increases significantly. Under microgravity conditions, within the scope of this study, the pressure curve changes less than the normal gravity, even if the amplitude and frequency increase. The sloshing makes it easier for the liquid to spread along the wall during the filling process. This also further weakens the temperature stratification in the storage tank.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Study of the Filling Process of a Liquid Hydrogen Storage Tank under Different Sloshing Conditions

Wei

Zhang

2020

Processes

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“…As there is increasingly improved attention to the automobile ride comfort and the application of low-noise engine and transmission system, the reduction of the fuel sloshing noise becomes one of the crucial noise, vibration, and harshness (NVH) issues. 1,2 Liquid fuel in a partially filled automotive tank oscillates when subjected to sudden acceleration or deceleration. This is called liquid sloshing, which is a source of noise generation in an automobile.…”

Section: Introductionmentioning

confidence: 99%

Liquid fuel sloshing control of an automotive fuel tank

Zeng

et al. 2019

Noise & Vibration Worldwide

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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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“…A systematic investigation on the effect of dynamic properties of fuel tank on sloshing noise and on transfer paths of structure-borne and air-borne sounds into passenger compartment was performed previously. Agawane et al 11,13 studied liquid sloshing in a rectangular tank, its effect on the tank wall vibrations and thereby the noise radiated, using an impulse-based dynamic loading test setup. Since, in this test setup, the fluid in the tank undergoes through all sloshing regimes very rapidly, the noise generation mechanism of each type of slosh noise cannot be clearly studied.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, periodic excitations at different frequencies are considered as part of this study. Agawane et al 11 discussed the sloshing noise phenomena under impact loading conditions. However, as it is difficult to distinguish various excitation frequencies during impact loading, effect of excitation frequency on different sloshing regimes could not be established.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of sloshing noise in a partially filled rectangular tank under periodic excitation

Golla

Mayur

Venkatesham

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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Liquid sloshing is becoming a major source of noise in hybrid and high-end luxury cars, especially during acceleration/deceleration driving conditions. This is due to the reduction in noise from other sources, namely, engine, transmission system, road–tyre interaction and so on. Sloshing noise is highly dependent on fluid motion in the containers. Based on the fluid motion in the containers, sloshing is classified into different regimes. The present experimental study discusses the noise generation mechanisms for various sloshing regimes. It is done by emulating different sloshing regimes in a partially filled rectangular tank by imposing longitudinal periodic excitation. The effect of fill level on noise generation phenomenon in each regime is analysed, individually, using dynamic response parameters and high-speed camera images. In this study, the measured dynamic response parameters are pressure, force, acceleration and sound pressure levels as a function of time. The fundamental reasons for the cause of sloshing noise in partially filled rectangular tanks are identified in terms of fluid motion and its interaction with the surrounding objects. The excitations upto the sloshing resonance condition cause hydraulic jumps along the tank walls leading to hit noise. Excitations beyond the sloshing natural frequency cause the predominant interaction of surface waves with surrounding fluid leading to splash noise.

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An Experimental Study of Sloshing Noise in a Partially Filled Rectangular Tank

Cited by 8 publications

References 23 publications

Numerical Study of the Filling Process of a Liquid Hydrogen Storage Tank under Different Sloshing Conditions

Numerical Study of the Filling Process of a Liquid Hydrogen Storage Tank under Different Sloshing Conditions

Liquid fuel sloshing control of an automotive fuel tank

Experimental study of sloshing noise in a partially filled rectangular tank under periodic excitation

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