Preconditioning Harmonic Unsteady Potential Flow Calculations

Potential Harmonic Calculations of theBinding Energies of

Unsteady Flow Calculations with a Parallel Multiblock Moving Mesh Algorithm

A novel parallel dynamic moving mesh algorithm designed for multiblock parallel unsteady  ow calculations using body-Ž ttedgrids is presented.Themoving gridalgorithmwithin each block uses amethod of arc-length-based transŽ nite interpolation, which is performed independently on local processors where the blocks reside. A spring network approach is used to determine the motion of the corner poi...

An Alternating-Direction-Implicit Algorithm for Unsteady Potential Flow

An implicit finite-difference scheme is presented for the efficient computation of unsteady potential flow about airfoils. The formulation uses density and the velocity potential a s dependent variables and is cast in conservation form to a s s u r e the theoretically c o r r ~ c t determination of shockwave location and speed. TO enable houndary conditions to b e imposed directly on the airfoi...

Unsteady Flow Volumes

Flow volumes [1] are extended for use in unsteady (timedependent) flows. The resulting unsteady flow volumes are the 3 dimensional analog of streaklines. There are few examples where methods other than particle tracing have been used to visualize time varying flows. Since particle paths can become convoluted in time there are additional considerations to be made when extending any visualization...

Sediment Transport in Unsteady Flow Conditions

Sediment transport under unsteady flow condition is studied experimentally. In the first step, sediment transport under different steady flow conditions was measured and an empirical equation was derived for its calculation. In the next step, two continuous and three stepwise hydrographs were generated in the flume, and their sediment transport rate was measured. The continuous hydrographs were...