An experimental study was performed at the University of Illinois at Urbana-Champaign Low-Speed Wind Tunnel to quantify the performance and flowfleld effects of two-element open-wheel-race-car front wing configurations. Four distinct configurations were tested inand out-of-ground effect and at various speeds (Reynolds numbers), angles of attack, and flap positions. A splitter plate was installe...

In order to obtain the telemetry data of wind field 80 m ahead turbine, an all-fiber continuous wave coherent Doppler lidar (CW-CDL) system is demonstrated in this paper. The CW-CDL structure has advantages compact structure, good stability and low cost. However, there inherent crosstalk optical circulator fiber module, light reference enter photon detector together produce phase induced intens...

Various phase shifters and absorbers can be put into the arms of a double loop neutron interferometer. The mean intensity levels of the forward and diffracted beams behind an empty four plate interferometer of this type have been calculated. It is shown that the intensities in the forward and diffracted direction can be made equal using certain absorbers. In this case the interferometer can be ...

We prove a splitter theorem for tight multimatroids, generalizing the corresponding result for matroids, obtained independently by Brylawski and Seymour. Further corollaries give splitter theorems for delta-matroids and ribbon graphs. © 2017 Elsevier Ltd. All rights reserved.

We present a new optical system that significantly reduces helicity-dependent instrumental intensity asymmetries. It is an extension of a previous scheme [Appl. Opt.47, 2465 (2008)], where one laser beam is split using a polarizing beam splitter into two with orthogonal linear polarizations. The beams are sent through a chopper, allowing only one to pass at a time. The two temporally separated ...

This paper investigates the origin of flow-induced instabilities and their sensitivities in a flow over rotationally flexible circular cylinder with rigid splitter plate. A linear stability sensitivity problem is formulated Eulerian frame by considering geometric nonlinearity arising from rotational motion which not present stationary or purely translating methodology. needs careful consistent ...

Background: As a significant terahertz functional device, terahertz beam splitters with high performance are highly required to meet the need for terahertz communication, terahertz image, and terahertz sensor systems. Results: The proposed 1×6 power splitter becomes 1×4 power splitter with the aid of the localized temperature change at the frequency of 1.0THz. The total output power is equivale...