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VedantJoshi_MS-Thesis_FINAL.pdf (6.47 MB)

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Experimental Analysis, Data Acquisition, & Image Processing of Fluid Sloshing for Automotive Applications

Joshi, Vedant
http://orcid.org/0009-0003-1908-0442
http://rave.ohiolink.edu/etdc/view?acc_num=osu168199263005838

Abstract Details

2023, Master of Science, Ohio State University, Mechanical Engineering.
In this research study, fuel sloshing for automotive applications isexperimentally observed inside a rectangular acrylic tank. A customized experimental setup includes a fuel tank that is designed (using CAD software) and manufactured using various machining techniques for each of the individual components. The experiment uses a high speed hydraulic actuator (2200 lbf capacity) to slosh a tank of volume 17.5 gallons up to a maximum speed of 2 mph. A triangular mechanical linkage is used to connect the actuator to the fuel tank and provide displacement and velocity amplification factor of 3:1. Experimental components and fixtures are designed such that various test conditions can be observed. This includes the tank inclination angle, and number and positions of baffles within the tank. In addition the percentage fill of the tank, and tank velocity are several parameters that are varied to investigate the change in fuel slosh. The pressure exerted by the fluid on the walls of the tank is measured by with the help of pressure transducers (0-5psig) at 10 distinct locations on the tank. The variation of pressure with time is observed by connecting pressure transducers to a National Instruments PXI Express data acquisition device and visualized using LabVIEW. Furthermore, the free surface of the fluid (water) is recorded using the Photron SA1 high-speed camera. The fluid (dyed dark blue to increase contrast) is tracked from raw high speed camera images using a customized image processing algorithm in MATLAB that captures fluid regions based on gray scale values and tolerances. The maximum pressure at specific time instants is noted and correlated with fluid slosh images amongst different cases in the test matrix. It is observed that wall pressure increases with an increase in % fill level and velocity. Furthermore, the number and position of baffles has no effect on impact pressure for some specific cases i.e., 90% fill and a velocity of 2 mph. As the fill level increases, the inertia of the fluid also increases resulting in higher impact pressure. Finally, numerical simulations portraying the slosh behavior are carried out and compared with experimental results.
Jeremy Seidt (Advisor)
106 p.
Design; Fluid Dynamics; Mechanical Engineering; Mechanics
Fluid Sloshing Fluid Structure Interaction Fuel Tank Image Processing Data Acquisition Pressure Measurement High-speed photography Fluid Dynamics

Recommended Citations

Citations

  • Joshi, V. (2023). Experimental Analysis, Data Acquisition, & Image Processing of Fluid Sloshing for Automotive Applications [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu168199263005838

    APA Style (7th edition)

  • Joshi, Vedant. Experimental Analysis, Data Acquisition, & Image Processing of Fluid Sloshing for Automotive Applications. 2023. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu168199263005838.

    MLA Style (8th edition)

  • Joshi, Vedant. "Experimental Analysis, Data Acquisition, & Image Processing of Fluid Sloshing for Automotive Applications." Master's thesis, Ohio State University, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=osu168199263005838

    Chicago Manual of Style (17th edition)

osu168199263005838
143
© 2023, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.
Release 3.2.12