This paper focuses on the design of a cascade within a cold stream thrust reverser during the early, conceptual stage of the product development process. A reliable procedure is developed for the exchange of geometric and load data between a two dimensional aerodynamic model and a three dimensional structural model. Aerodynamic and structural simulations are carried out using realistic operatin...

The flow control in twin air-intakes is necessary to improve the performance characteristics, since the flow traveling through curved and diffused paths becomes complex, especially after merging. The paper presents a comparison between two well-known techniques of flow control: active and passive. It presents an effective design of a vortex generator jet (VGJ) and a vane-type passive vortex gen...

The ability to accurately predict fan noise is important in designing and optimizing aircraft engine turbofans for low noise emissions. In this paper, a prediction methodology for exhaust fan tone noise analysis is described and validated against various canonical test cases and NASA Source Diagnostic Test (SDT) data. The prediction process consists of solving Reynolds-Averaged Navier-Stokes (R...

Appendix 1. Content knowledge and skills assessment questions forPOB (BIOL 1108K, Principles of Biology II). Content knowledge and skills were assessed with pre-exposure (beginning of semester) and post-exposure (end of semester) tests.* indicates correct answer. Content area Question Taxonomy Which definition best describes a species? a. A group of similar looking organisms that live in the sa...

The optimization of radial guide vane structure is the key measure to reduce hydraulic loss component. research model for this paper a multistage centrifugal pump with vane. Based on SST k–ω turbulence and using CFD numerical simulation technology imitate forecast performance. influences blade numbers return circumferential distribution position transportability are studied. internal fluidity c...