The application of integral constraints to a numerically integrated system of dynamical equations is a method by which one can insure that a chaotic flow maintains its integrity. Such constraints have been a mainstay of climate models, largely out of necessity to eliminate unrealistic long term trends in such quantities as enstrophy, entropy, mass, momentum, energy, moisture and so on. It is in...

Modeling of wave propagation in a heterogeneous medium requires input data that varies on many different spatial and temporal scales. Operator-based upscaling allows us to capture the effect of the fine scales on a coarser domain without solving the full fine-scale problem. The method applied to the constant density, variable sound velocity acoustic wave equation consists of two stages. First, ...

The effects of passive scalar anisotropy on subgrid-scale (SGS) physics and modeling for Large-Eddy Simulations are studied experimentally. Measurements are performed across a moderate Reynolds number wake flow generated by a heated cylinder, using an array of four X-wire and four cold-wire probes. By varying the separation distance among probes in the array, we obtain filtered and subgrid quan...

Large-eddy simulations of awing-body junction flow experimentally studied are presented.Wall junction flows are common in engineering applications, but the flow physics at the corners of the junction is not well understood. Moreover, in these types of flows, the performance of the subgrid-scale models frequently used for large-eddy simulations is not well characterized. To address these issues,...