Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Publication
- Publication Type
Articles 1 - 4 of 4
Full-Text Articles in Engineering Mechanics
A Direct Numerical Simulation Of Vortex Breakdown Induced Tail Buffet, Steven James Massey
A Direct Numerical Simulation Of Vortex Breakdown Induced Tail Buffet, Steven James Massey
Mechanical & Aerospace Engineering Theses & Dissertations
A simulation of tail buffet is presented for a delta wing-vertical tail configuration. Flow conditions are chosen such that the wing primary-vortex cores experience vortex breakdown and the resulting turbulent wake flow impinges on the vertical tail. The dimensions and material properties of the vertical tail are chosen such that the deflections are large enough to insure interaction with the flow, and the natural frequencies are high enough to facilitate a practical computational solution. This multidisciplinary problem is solved sequentially for the fiuid flow, the elastic deformations and the grid displacements. The fluid flow is simulated by time accurately solving …
Simulation Of Vertical Tail Buffet In Internal Vortex Breakdown Flows, Mark William Flanagan
Simulation Of Vertical Tail Buffet In Internal Vortex Breakdown Flows, Mark William Flanagan
Mechanical & Aerospace Engineering Theses & Dissertations
Computational simulation of vertical tail buffet in an internal vortex breakdown flow is considered. The fiuid-flow problem is formulated using the full, compressible, unsteady Navier-Stokes equations which are solved using an implicit, flux-difference splitting, finite volume scheme. The fluid-flow problem is solved in a configured circular duct using quasi-axisymmetric assumptions to simplify the flow equations. A plate is placed transverse to the incoming flow. Solution of the flow in the duct is performed with and without a rigid plate, and with and without an elastic plate. The elastic response of the plate is calculated assuming that it is a cantilever …
An Electro Hydrodynamic Study Of The Negative Corona Electric Wind, Henry Thadei Kadete
An Electro Hydrodynamic Study Of The Negative Corona Electric Wind, Henry Thadei Kadete
Tanzania Journal of Engineering and Technology (TJET)
The velocity of corona generated electric wind is measured. From the velocity profile mass movement and electrokinetic conversion efficiencies are deduced. High speed schlieren photographs illustrate the form of the velocity distribution function as well as its high degree of turbulence.
Negative Corona Current Characteristics Of An Electric Wind System, Aviti Kadete
Negative Corona Current Characteristics Of An Electric Wind System, Aviti Kadete
Tanzania Journal of Engineering and Technology (TJET)
The corona current characteristics of an electric wind system are investigated. First a brief summary of the negative point to plate corona mechanism and characteristics are presented. Then empirical equations for corona currents of an electric wind system are derived. Current waveform characteristics are also discussed. The effects of placing parallel rods in between a point-plate electrode gap to the corona currents are highlighted.