REGENT, a North Kingstown, Rhode Island based company, is designing and building ”seagliders”. REGENT’s seaglider is a fully electric vehicle that utilizes a blown wing and hydrofoils for takeoff from the water, instead of gas powered engines and a... Read more
We use numerical solutions to investigate the actuator-disc model in hover. Most solutions come from a conventional Navier-Stokes solver named Flow360, and a few from a Vortex-Ring Method. In Flow360 the source term for vorticity, namely the curl of... Read more
This paper presents the contribution of Flexcompute to the Hover Prediction Workshop, with a focus on hover performance and download predictions. The analysis is focused on HVAB rotor blade simulations at two blade tip Mach numbers of 0.58 and... Read more
This paper presents results of the numerical study of the Bell XV-15 rotor with the flow solver Flow360 using a coupled Navier-Stokes/Blade Element Theory model. Results are presented for both steady-state and transient simulations. The resulting thrust, torque, and... Read more
This paper presents the contribution of Flexcompute to the 4th High Lift Prediction Work- shop based on the Flow360 solver. The analysis of the high-lift prediction results is focused on four key areas: mesh sensitivity, turbulence modelling sensitivity, effect... Read more
Distributed electric propulsion presents new opportunities to design aircraft which take advantage of the deliberate close interaction between propellers, wings, and flaps. Significant forces and moments arise which would not be well-captured by modeling the systems in isolation. The... Read more
We introduce a novel workflow called Rotor5 to simplify and accelerate the traditional high-fidelity rotor simulations by integrating (1) CAD preparation (2) mesh generation and (3) CFD solver into an end-to-end process. We quantify the limitations of a popular... Read more
This paper presents numerical investigation on performance and flow field of the full-scale XV-15 tiltrotor in both helicopter mode (hovering flight and forward flight) and aeroplane propeller mode using Detached Eddy Simulation, in which the movement of the rotor... Read more
We demonstrate an adaptive sampling approach for computing the probability of a rare event for a set of three-dimensional airplane geometries under various flight conditions. We develop a fully automated method to generate parameterized airplanes geometries and create volumetric... Read more