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Viscosity

Viscosity. for students of Physics. Tom Ramsey Mentor High School Mentor OH 44060 tramsey@ncweb.com. Isaac Newton studied viscosity. Viscosity: Connecting with Chemistry and Biology. Does air resistance increase as v or v2???. Air resistance produced by collisions of gas molecules.

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Viscosity

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  1. Viscosity for students of Physics Tom Ramsey Mentor High School Mentor OH 44060 tramsey@ncweb.com Isaac Newton studied viscosity

  2. Viscosity: Connecting with Chemistry and Biology Does air resistance increase as v or v2???

  3. Air resistance produced by collisions of gas molecules Air Resistance Increases with Temp Proportional to v for slow speeds Proportional to v2 for higher speeds Because of turbulence Reynolds number provides dividing line Visc.smd

  4. Viscosity/friction in a fluid Decreases with increasing Temp Produced by decreasing intermolecular forces Non-Newtonian Fluids Viscosity_liquid.smd 3 oils/5 temp

  5. Applications Bernoulli’s equation Non-newtonian fluids Pouiselle’s Equation: Q ~ r4 Alt. Models:fractals, percolation Dr. Jean Leonard Marie Poiseuille Checks his heart

  6. Introduction Provides a connection between math,chemistry Biology and Physics Provides students a chance to look at alternate scientific models. Provides a molecular explanation as an alternate To the usual continous model

  7. Intended Audience AP,Honors, Regular Physics Builds on what students have learned In other classes

  8. Adjustments/Adaptations None required-all levels of Physics can handle

  9. Placement in Curriculum After kinematics and dynamics Some concepts such as Pressure were learned in Chem

  10. Goals and Objectives Determine the relationship between temp and viscosity for both gases and liquids Compare different models for viscosity understand the usefulness of Reynold’s number As a criterion for distinguishing turbulent and nonturbulent flow. Give reports on the application of viscosity to other fields such As Biology, Chemistry and Engineering

  11. Time Line

  12. Resources 1 computer per 2/3 students Smd program with viscosity files for liquid and gases. Standard lab equipment(hot plates, graduates, coffee filters,metersticks for wet labs)

  13. Bibliography Websites: Transtronics:Viscosity Basics Fluid Dyanmics Online Textbook Vicosity of Lava Flows Wolfram Research(Mathematica) Navier Stokes Equation Mathematica model of Galileo's Experiment BU software/curricular material References: Physics by Douglas Giancoli 3rd Schaum’s Outline Series: Fluid Dynamics Solving Problems in Fluid Mechanics Vol2 by JF Douglas 1967 Life’s Devices by Steven Vogel Princeton University Press ISBN0691024189

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