Find information on common issues.
Ask questions and find answers from other users.
Suggest a new site feature or improvement.
Check on status of your tickets.
CD Injection Molding I: Navier-Stokes
10 Apr 2019 | | Contributor(s):: Adam Powell
State simplifying assumptions which can be made regarding radial injection molding of liquid polycarbonate polymer into a CD mold, and simplify the cylindrical form of the Navier-Stokes equations accordingly.
CD Injection Molding II: Shear Stress
09 Apr 2019 | | Contributor(s):: Adam Powell
Solve the cylindrical Navier-Stokes equations simplified in Part I to give the velocity profile in radial injection molding of a CD, and calculate the shear stress based on this velocity profile.
Radiative Cooling of an Aluminum Cube
Show that radiative cooling of an aluminum cube is Newtonian (uniform temperature), and calculate time required to cool through a certain temperature range by radiation alone.
Bottom Filled Mold
07 Apr 2019 | | Contributor(s):: Matthew John M. Krane
Calculation of mold filling times, with and without a constant height of metal in a riser. Problem uses modified Bernoulli equation for the mechanical energy balance and the students are asked to determine which resistances are significant.
Cast-a-Box: Casting Conditions and Macroporosity
07 Apr 2019 | | Contributor(s):: Adam Powell
An illustration of three-dimensional finite difference simulation of heat conduction with phase change and complex boundary conditions, this requires students to adjust boundary conditions to make the top surface of a regular hexahedral "casting" to freeze last, eliminating...
Batch and Continuous Flow Reactors
30 Mar 2019 | | Contributor(s):: Adam Powell
Derive expressions for productivity of plug flow and perfectly mixed continuous flow reactors, discuss quality, and describe advantages of batch reactors.
30 Mar 2019 |
Estimate flow rate of blood through two types of porous filter: an array of tubes and a packed bed of solid spheres.
Blood Flow and Vascular Deposits
Analyze the effect of increasing fat deposit thickness on blood flow through human arteries.
Casting of a Cylindrical Part in a Thermally Resistive Mold
30 Mar 2019 | | Contributor(s):: Matthew John M. Krane
Use of integral analysis for development of approximate solution for solidification in cylindrical thermally resistive mold.
Stokes Flow Past a Fluid Sphere
20 Mar 2019 | | Contributor(s):: Adam Powell
The solution to the Stokes flow equations for viscous flow past a viscous sphere, which in the limiting cases of zero and infinite interior viscosity gives the drag force on bubbles and solid spheres respectively.
A Heat Transfer Calculation
Outline the steps required to calculate the temperature at the interface between a stationary solid and a fluid flowing past it.
Argon Quenching of Ni-based Alloy Cylindrical Bars
20 Mar 2019 | | Contributor(s):: Matthew John M. Krane
Calculate radiation viewfactors and power transferred between various parts of an zirconia physical vapor deposition chamber.
Application of Integral Analysis to Semi-infinite Diffusion Couple
Apply integral analysis to semi-infinite diffusion couple.
Dimensional Analysis for Dummies
20 Mar 2019 |
Derivation of the error function solution to the diffusion equation, and description of the point source in 1-, 2- and 3-dimensions..
Ionization Potential of Small Molecules Using DFT
27 Aug 2018 | | Contributor(s):: Alejandro Strachan
Use DFT simulations to explore the ionization potential (energy required to remove an electron) in atoms and small molecules. Disclaimer: While very powerful, DFT makes well known approximations and the results obtained in this module are approximate.
Learning Module: Microcantilevers
09 Feb 2017 | | Contributor(s):: Southwest Center for Microsystems Education (SCME)
This learning module introduces you to the microcantilever, its applications in micro and nanotechnologies, its use in sensor arrays, and how it works in both static and dynamic modes of operation. There is a pre and post-test, four (4) informational units (PKs), and two (2)...
Nanotechnology and the NAE Grand Challenge Make Solar Energy Economical
20 Jun 2016 | | Contributor(s):: Edward Davis, Virginia A. Davis
This group of materials is designed to provide a framework to teach students in an introductory engineering course basic nanotechnology concepts. The materials use the NAE grand challenge “Make Solar Energy Economical” to underpin the need and potential for nanotechnology to address...
Homework assignment: learning about elastic constants via molecular dynamics simulations
11 Mar 2015 | | Contributor(s):: Alejandro Strachan, David Ray Johnson
In this homework assignment students will use molecular dynamics to compute the elastic constants of metals using an embedded atom model to describe atomic interactions. They will deform a single crystal along different directions and obtain c11, c12 and c44 elastic constants from the...
Melting via molecular dynamics simulations
10 Mar 2015 | | Contributor(s):: Alejandro Strachan
In this assignment you will use MD simulations to study melting in metals using the nanoMATERIALS simulation tool in nanoHUB. You will build a supercell and heat it up to study its melting. You can visualize the atomic configuration as the temperature is increased and after melting. From the...
OnlineSimulation tutorial and assignment: bonding curves in H2 and He2 molecules
21 Feb 2015 | | Contributor(s):: Alejandro Strachan
In this tutorial students will use density functional theory (DFT) calculations using the nanoHUB tool SeqQuest to study bonding in two simple molecules: H2 and He2. The tutorial shows how to compute energy as a function of bond distance and extract the equilibrium bond distance and bond...