Testing was conducted for channel flow speeds ranging from 1.0 m/s to 1.7 m/s.
Rich methane/air mixtures with an equivalence ratio of 1.5 are injected from the burner into atmosphere at different flow speeds ranging from 0.77 to 1.7 m/s, with Reynolds numbers based on the nozzle flow ranging from 1100 to 2500.
Employing multi-dimensional test cases, it is shown that, the new scheme is very robust and can be utilized for computing flows over a very wide range of flow speeds, ranging from incompressible limit (Mach No. ∼0.1) to very high speed compressible flows (Mach No. ∼10).
However, in regions 2 and 3, the interstellar H drift speed is different from the plasma flow velocity (({sim }20) km/s for H versus ({sim }100 750) km/s for the plasma), and H originating from regions 3 and 2 that splashes back into the LISM has flow speeds ranging from ({sim } 100 400) km/s, which is quite different from the ({sim } 15 26) km/s speed of region 1.
Such an arrangement in which the down stream block is suspended on taut wires has been used to investigate Curle's prediction of the relation between the fluctuating lift force exerted by the block on the stream and the radiated sound power in the frequency domain for flow speeds ranging from 70 m/s to 190 m/s.
However, the μ-synthesized controller shows improved behavior over a wide flow speed range.
This promotes a combined instability, which one may call "unsteady galloping", with peculiar features and possibly large vibration amplitudes in flow speed ranges where no excitation is predicted by classical theories.
This conclusion is also relevant from the engineering point of view, as it means that structures and structural elements with ordinary mass-damping properties can exhibit sustained vibrations in flow speed ranges where no excitation is predicted by classical theories of vortex-induced vibration and galloping.
Square pools with dimensions ranged in 10 25 cm are burnt under cross air flow speed ranged in 0 2.5 m/s, using ethanol and heptane as representative fuel producing flame of definitely different sootiness and luminosity as to compare their response to the cross air flow in radiation feedback.
On the other hand, Doppler optical coherence tomography (DOCT) has high spatial resolution (~10 μm), high temporal resolution (40 Hz) and wide flow speed dynamic range (7 μm/s to 52 cm/s) [ 16], but it requires extensive post processing and an expensive system to obtain the high resolution images.
