Final Product Design Presentation P13465 Water Table May 10 th , - - PowerPoint PPT Presentation

“ H E A R I T A N D F O R G E T I T , S E E I T A N D R E M E M B E R I T , D O I T A N D U N D E R S T A N D I T ”

Final Product Design Presentation

P13465 – Water Table

May 10th, 2013

Water Table MSD Team

Primary Customers: Ed Hanzlik John Wellin Faculty Guide: Gerald Garavuso Team Members: John Harrington, Project Manager Andrew Nauss, Lead Engineer Timothy Jordan, Project Engineer Dan Abdeen, Project Engineer

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Today’s Agenda

Introduction (3 minutes, 2 Slides)

— Brief Project Description — Objectives / Customer Needs

System Architecture (5 minutes, 4 Slides)

— Final System Design — Capabilities

System Demonstration (5 minutes, 1 Slide)

— Demonstration (Video)

Testing (5 minutes, 4 Slides)

— Engineering Specifications / Test Plan — Major Challenges — Flow Separation — Uniform Straight Flow Video

Wrap-Up (10 minutes, 3 Slide)

— Budget — Future Design Recommendations — Questions and Comments 3

Project Description – Water Table

— Force straight flow over an object of some geometry

to study fluid dynamic effects

— Primarily used for displaying concepts of:

¡ Streamlines ¡ Flow Separation ¡ Vortex Shedding

— Top down view — Variable flow speeds — To be used for educational use — Assist in fulfilling the ME department’s mission

statement

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Customer Needs

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Final System Design (Side View)

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Water Reservoir Water Table Pump Switch Gate Valve 3-Way Valve Ball Valve E-Stop

Final System Design (Top View)

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Test Section Baffle/Inlet Flow Straightener Nozzle Panel Drain Magnet

Test Specimens

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PLATE CYLINDER BERNOULLI CONTRACTION AIRFOIL

Main System Capabilities

— Modular — Transportable — Quick setup and teardown — No leaks — Variable test specimen geometry — Adjustable angle-of-attack — Variable flow from 1 to 7.5 in/s — Adjustable flow height from 1 inch to 5 inches — Adjustable nozzle section — Laminar flow regime only — Two main flow visualizers:

Ø Electrolysis Ø Beads Ø Food dye can also be used but limits duration of use w/o changing water

— Ability to measure velocity through high speed camera — Possible future adaptability for fluids other than water and different setups — Shows concepts of flow separation, vortex shedding, and streamlines 9

System Demonstration-Cylinder

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System Demonstration-Airfoil

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System Demonstration-Flat Plate

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System Demonstration-Contraction Section

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Engineering Specification / Test Plans

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Major Challenges

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— Water Leak

¡ Problem: Water was leaking out of bulk head fitting due to

uneven surfaces

¡ Solution: Used a Form-A-Gasket to create gasket for uneven

surfaces

— Electrolysis

¡ Problem: Bubbles were created, but difficult to see ¡ Solution: Used underwater LED lights to emphasize bubbles

by reflection of light

Flow Separation

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Separation angle using food dye was approximately at 80O According to theoretical results separation angle should occur approximately at 80O from trailing end for 0.5 in/s flow velocity Separation angle using electrolysis was approximately at 80O

Uniform Straight Flow Video

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— Uniform flow velocity throughout test section — Distinct straight streamlines

Budget

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— Budget for project was $2000 — Team spent ~$1800 — Extra money was spent on buying additional

replacement supplies such as platinum wire for future use

Future Design Recommendations

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— Modularity Design

¡ Completely redesigned to make setup easier

— Size of Water Table

¡ A longer and wider water table would allow for straighter flow and a

larger test section capability

— Higher Voltage for Electrolysis

¡ More bubble generation ¡ Dangerous, but a cover could be made

— Deeper Water Design

¡ Deeper water design would allow the high mode on the pump to be

used without it surging

Questions/Comments/Concerns

Thank nk ¡ ¡you ¡ ¡for ¡ ¡a,end nding ng ¡ ¡

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¡Fina nal ¡ ¡Present ntation ¡ n ¡ Re Review! ¡ ¡

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Velocity Flow Range Measurements

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— Measurements taken using a ruler and stop watch — Velocity flow range: 0.8 in/s to 7.5 in/s