A remote access laboratory for fluids education in mechanical engineering

Gwen Elizabeth Ellis

This paper reports on a teaching model developed to strengthen student understanding of flow through a venturi. The focus is on Bernoulli's Equation, but sub modules of gauge and absolute pressure, the energy and continuity equations and the comparison of experimental to theoretical results are also emphasized. The model was implemented into Mechanical Engineering courses throughout the WSU curriculum. The intent was to provide students with a strong foundation in venturi and Bernoulli related principles. The focal point of this model is a theory verification experiment with a venturi that underwent modifications to enable remote operation. It required the implementation of new hardware and software as well as lab instructions and supporting materials. Intended users are instructors and students. Instructors can use iv the experiment to perform demonstrations and active learning assignments in their classroom. Distance learners can operate the lab remotely as part of their coursework. The remote lab and associated materials were integrated across the curriculum. The model was used to achieve consistency between modelled and experimental results in an ME 216 SolidWorks demonstration and assignment. It was also used to develop and assess an active learning module for Fundamentals of Fluid Mechanics students in ME 303. A pre and post assessment quiz given during the ME 303 demonstration resulted in an average 22.3 % increase in student understanding. The viability of remote operation of the lab by students in the ME 305 thermal fluids laboratory course was also assessed. A small group of students performed the lab remotely. Based on their feedback the feasibility of using the lab for distance education was determined. An assessment on the contribution to student understanding of the concepts enveloped in the model was performed using the techniques of concept questions and Bloom's Taxonomy. Based on the concept questions identified and Bloom's Taxonomy, weak areas of the associated material were strengthened. Online resources in the form of video tutorials and PowerPoints were created to directly address common misconceptions on material taught. These supplemental materials also offer support/reference for upper division classes involving experimental design (ME 406) and thermal fluids design (ME 402).

A remote access laboratory for fluids education in mechanical engineering

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