PPT-Lecture 7: Unsteady Laminar Flow

Impulsive Shearing Motion of a Plane Wall Laminar Boundary Layers Impulsive shearing motion of a plane wall At the wall is impulsively set into motion Nonsteady planeparallel flow. Laminar Turbulent Laminar flow Laminar flow is orderly follows known theory and is therefore predictable Accurate results can be achieved by numerical solution of the differential equations governing the fluid flow and heat transfer Turbulent Esco Airstream Laminar Flow Clean Bench Laminar Flow Clean Benches, Horizontal and Vertical (D-Series) 2 2 2 Airstream Horizontal Laminar Flow Clean Bench, Model AHC-4D_.Shown with optional caster wh CE30460 - Fluid Mechanics. Diogo. Bolster. Laminar or Turbulent Flow. Turbulent Flow http://. www.youtube.com/watch?v. =NplrDarMDF8. Laminar Flow http://. www.youtube.com/watch?v. =KqqtOb30jWs&NR=1. What is . OpenFOAM. ?. OpenFOAM. is a library of C++ codes that solve partial differential equations. Incompressible flow (. Navier. -Stokes). Compressible flow (. Navier. -Stokes). Solid displacement (Elasticity). Fluids can move or flow in many ways. . In . steady flow. the velocity of the fluid particles at any point is constant as time passes. . Unsteady flow. exists whenever the velocity at a point in the fluid changes as time passes. Sterile Products Lab. PHT 434. Definition. Laminar flow cabinets . are a carefully enclosed bench designed to: . Prevent contamination of biological samples, or any particle sensitive device.. Protect the product, operator, and/or environment.. Esco Airstream Laminar Flow Clean Bench Laminar Flow Clean Benches, Horizontal and Vertical (D-Series) 2 2 2 Airstream Horizontal Laminar Flow Clean Bench, Model AHC-4D_.Shown with optional caster wh Laminar Flow Clean Benches, Horizontal and Vertical AS 1386.5, EN12469 (Microbiological Testing Method) Laminar Flow Clean Benches, Horizontal and Vertical 2 2 2 2 2 Microprocessor controller Sterile LAMINAR FLOW . V.S. TURBULENT FLOW. This shows turbulence because it’s all over the place and rough. This part of the picture shows Laminar Flow because it runs very smoothly. Unsteady. Flow. Objectives. Understand unsteady flow.. Examine the unsteady . form of the Navier–Stokes . Equation.. S. tudy . the Courant Number for unsteady . flow.. Learn from an example. : Unsteady flow . : . Fluids: . Fluid motion + Viscosity. Additional skills gained:. Application of knowledge to wider contexts. Objectives:. 51. . . a. . be able to use the equation for viscous drag (. Stokes’s. Law. DESCRIBE . the characteristics and flow velocity profiles of laminar flow and turbulent flow.. DEFINE . the property of viscosity.. DESCRIBE . how the viscosity of a fluid varies with temperature.. DESCRIBE . Diogo. Bolster. Laminar or Turbulent Flow. Turbulent Flow http://. www.youtube.com/watch?v. =NplrDarMDF8. Laminar Flow http://. www.youtube.com/watch?v. =KqqtOb30jWs&NR=1. Re. <2000. Re>4000. Laminar flow cabinets for laboratories. Kewaunee’s Interceptor laminar air flow cabinet workstation are a popular choice in many laboratories.