Presentation Title

Dye Injection System in a Water Channel: Application for Dispersion Experiments

Faculty Mentor

Dr. Marko Princevac

Start Date

23-11-2019 12:30 PM

End Date

23-11-2019 12:45 PM

Location

Markstein 105

Session

oral 3

Type of Presentation

Oral Talk

Subject Area

engineering_computer_science

Abstract

The Laboratory for Environmental Flow Modeling has a newly manufactured circulating water channel. Since it was recently built, it currently does not have the necessary equipment for enabling experiments to study fluid mechanics. One of the mechanisms needed is a dye injecting system which allows for flow visualization. The dye injector design had certain requirements to ensure the experimental integrity. One of the major requirements for the dye is to not disturb the flow. For that reason, we decided to use an airfoil. We deployed computer-aided drafting to design iterations. The first iteration allowed for the dye to be injected from the top and flow out the back. However, after considering the size and manufacturing, this iteration was abandoned. Eventually the design was a straight tube that runs through the middle of the airfoil. The model created in the drafting software is compatible with the computer numerical control electrical discharge machining which will be used for manufacturing. Initial flow visualization was conducted from the top of a model building. The challenge was enabling the model’s position at the bottom of the channel providing appropriate light conditions. In this presentation we will show the process of the design, manufacturing, and flow visualization. For the experimental setup, a camera to capture low light objects was used on a track along with lasers to enhance optical quality. Finally, the effectiveness of the dye injector was measured both quantitively and qualitatively. The results from the simulation and the experiment were measured and found to be accurate.

Keywords: Flow Modeling, airfoil, computer-aided drafting, visualization, manufacturing

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Nov 23rd, 12:30 PM Nov 23rd, 12:45 PM

Dye Injection System in a Water Channel: Application for Dispersion Experiments

Markstein 105

The Laboratory for Environmental Flow Modeling has a newly manufactured circulating water channel. Since it was recently built, it currently does not have the necessary equipment for enabling experiments to study fluid mechanics. One of the mechanisms needed is a dye injecting system which allows for flow visualization. The dye injector design had certain requirements to ensure the experimental integrity. One of the major requirements for the dye is to not disturb the flow. For that reason, we decided to use an airfoil. We deployed computer-aided drafting to design iterations. The first iteration allowed for the dye to be injected from the top and flow out the back. However, after considering the size and manufacturing, this iteration was abandoned. Eventually the design was a straight tube that runs through the middle of the airfoil. The model created in the drafting software is compatible with the computer numerical control electrical discharge machining which will be used for manufacturing. Initial flow visualization was conducted from the top of a model building. The challenge was enabling the model’s position at the bottom of the channel providing appropriate light conditions. In this presentation we will show the process of the design, manufacturing, and flow visualization. For the experimental setup, a camera to capture low light objects was used on a track along with lasers to enhance optical quality. Finally, the effectiveness of the dye injector was measured both quantitively and qualitatively. The results from the simulation and the experiment were measured and found to be accurate.

Keywords: Flow Modeling, airfoil, computer-aided drafting, visualization, manufacturing