Showing papers by "Walter F. O'Brien published in 2017"
TL;DR: In this paper, the flow details from a vane-based distortion generator were analized for non-uniform flow ingestion by turbofan engines, and the results showed that the resulting flow details can account for nonuniform flows ingested by engines.
Abstract: Engine/airframe integration in advanced aircraft concepts must account for nonuniform flows ingested by turbofan engines. In this work, flow details from a vane-based distortion generator were anal...
13 citations
09 Jan 2017
13 citations
09 Jan 2017
12 citations
11 citations
8 citations
09 Jan 2017
7 citations
Patent•
05 May 2017TL;DR: In this paper, a method for determining a downstream flow profile including a pressure profile and a velocity profile is presented, which is then used to generate the downstream flow profiles in the flow field of interest.
Abstract: Various examples are provided related to improvements in generalized flow profile production. In one example, a method includes determining a downstream flow profile including a pressure profile and a velocity profile; fabricating a pressure profile generator including distortion screen(s) disposed on a backing structure; fabricating a velocity profile generator including turning vanes in a flow path through the velocity profile generator that are configured to generate the velocity profile; attaching the pressure profile generator to an input side of the velocity profile generator; and installing the flow conditioning device in the flow field of interest. Flow through the flow conditioning device produces the downstream flow profile in the flow field of interest. In another example, a flow conditioning device includes a pressure profile generator with distortion screen(s) disposed on a backing structure; and a velocity profile generator with turning vanes attached to an input side of the velocity profile generator.
5 citations
10 Jul 2017
1 citations