Pump Jet Ejector

Cheryl ClarkMath and Engineering Teacher

Victoria East High SchoolDr. Cable Kurwitz, Nuclear

Engineering

Research Project

Gather Experimental data for two-phase flow of a jet ejector pump

Two phase flow is difficult to characterize

Use experimental data

Jet Ejector Pump

Day 1: Lesson Plan

August, 2011 Pretest Also ask Students to bring 100 pictures

October, 2011 Present my E3 research using Poster and

Powerpoint Discuss two-phase flow Demonstrate two phase flow: Use a coke

Day 2: Pixel Face

Take a picture of their own face

UploadMagnifyCount how many pixels wide and long in their face

Before and After Magnification

Two Phase Flow

Give students pictures of two phase flow; each group gets a different picture

Use Transparency overlay of graph paper to represent pixels

Mark gas as white and liquid as black Students count and calculate

fractions of liquid and gas and do a mass balance for the jet

Two Phase Flow

Day 3: Labview Front PanelHistogram, Threshold, Invert

Labview Back Panel

Day 3: Picture Mosaic

Download free Andrea Mosaic software

Create a mosaic from their own pictures

First choose a picture for the base

Set Mosaic Parameters

Mosaic size and resolution Tile size and duplication Pattern Color change Tile variants Etc.

Create Mosaic

Ooops! Pixels are too big.Change parameters and try again!

Smaller Pixels are a Tradeoff

Class Project

Choose a type of Engineering,

Bring 100 pictures

Take a class picture

Create a mosaic for marketing

Pre/Post Test

When sampling an image spatially, the sampling rate might have units of ____________. pixels/cm Answer pixels/sec cm/pixel pixels

Spatial quantization refers to the process by which we assign the number of pixels in an image.

Answer the frame rate of a movie. the shape of the pixels in an image. the numbers assigned to each pixel.

A picture that has many small details would need to be sampled with a large pixel size. a high spatial sampling rate. Answer a high bit quantization level. a low bit quantization level.

 

TEKS

Exit Taks Objectives Objective 9

Algebra II 111.33 a.1

Engineering Design and Problem Solving 130.373 c.2.B

Infinity Engineering Curriculum

Chapter 4: Math You Can See

Pgs 205-209 Covers Threshold and Negative of digital images

Acknowledgements

TAMU E3 Program National Science Foundation Texas Workforce Commission Nuclear Power Institute Dr. Cable Kurwitz Cheyn Worn