We are thankful to be welcome on these lands in friendship. The lands we are situated on are covered by the Williams Treaties and are the traditional territory of the Mississaugas, a branch of the greater Anishinaabeg Nation, including Algonquin, Ojibway, Odawa and Pottawatomi. These lands remain home to many Indigenous nations and peoples.

We acknowledge this land out of respect for the Indigenous nations who have cared for Turtle Island, also called North America, from before the arrival of settler peoples until this day. Most importantly, we acknowledge that the history of these lands has been tainted by poor treatment and a lack of friendship with the First Nations who call them home.

This history is something we are all affected by because we are all treaty people in Canada. We all have a shared history to reflect on, and each of us is affected by this history in different ways. Our past defines our present, but if we move forward as friends and allies, then it does not have to define our future.

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January 21, 2011

Speaker: Tian Chen, MSc student, Faculty of Science, Ontario Tech University

Title: Mathematical Modelling of Plunger Pump Operation with High Resolution Simulation for the Valve Regions

Abstract: Pumps are widely used throughout society, e.g. irrigation, gasoline supply etc. In particular, we will be investigating the plunger pumps for industrial wastewater treatment facilities. This modelling problem was first brought by America's leading pump manufacturer Wastecorp to MITACS in late 2009. Wastecorp's plunger pump was found to introduce periodic clicking noise at high resistance. A mathematical model is needed for investigating the operation of plunger pump in detail and seeking the possible causes of undesirable noise. We will go through the modelling process from 1-dim flow model design to high resolution numerical approaches for critical regions such as the valves. Some simulation results and possible methods for model refinement will also be discussed.