This work couples a computational fluid dynamics (CFD) code and rotorcraft computational structural dynamics (CSD) code to calculate helicopter rotor airloads across a range of flight conditions. An iterative loose (weak) coupling methodology is used to couple the CFD and CSD codes on a per revolution, periodic basis. The CFD uses a high fidelity, Navier-Stokes, overset grid methodology with fi...

In this paper, 2-D simulation of a 61 m long inclined snow chute flow and its interaction with a catch dam type obstacle has been carried out at Dhundhi field research station near Manali, Himachal Pradesh (India) using a commercially available computational fluid dynamics (CFD) code ANSYS Fluent. Eulerian non-granular multiphase model was chosen to model the snow flow in the surrounding atmosp...

Drill-in-fluids create what are known as filter cakes. Filter cakes, in some cases, lead to well abandonment because they prevent hydrocarbons from flowing freely the formation into wellbore. Cake removal is essential avoid damage. A previous study on cake breakers was considered for computational fluid dynamic (CFD) validation. Matlab-CFD and Navier-Stokes equations aimed at predicting validat...

Aortic root and valve clots are rare but well described in patients on maximal left ventricular assist device (LVAD) support. We performed a theoretical analysis using computational fluid dynamic analyses in two dimensions to try and ascertain if inflow cannula design/orientation/placement affect aortic root flow dynamics. Two-dimensional computational fluid dynamics using easy CFD-G was perfor...

As the capabilities of computational fluid dynamics (CFD) to model full aircraft config­ urations improve, and the speeds of massively parallel machines increase, it is expected that CFD simulations will be used more and more to steer or in some cases even replace traditional flight test analyses. The mission of the US Air Force SEEK EAGLE office is to clear any new weapon con­ figurations and ...

Computational Fluid Dynamics (CFD) frameworks of supercritical cryogenic fluids need to employ Real models such as cubic Equations State (EoS) account for thermal and inertial driven mechanisms fluid evolution disintegration. Accurate estimation the non-linear variation in density, thermodynamic transport properties is required computationally replicate relevant thermo dynamics involved. This a...

Solutions that aim to reduce water production in heavy oil wells have led the design of devices known as rate-controlled (RCP) autonomous inflow-control device (AICD) valves, which are placed well completions and autonomously open with inflow close by choking flow. These devices, based on Bernoulli’s principle, use a levitating disk chokes flow phase lowest resistance. This study proposes numer...

The study presents two novel approaches for gust response analysis of elastic free aircraft configuration using computational fluid dynamics (CFD) tools. The direct approach involves full aeroelastic dynamic simulation within a CFD run. The hybrid approach involves computing rigid sharp-edge gust responses in a CFD run, evaluating the gust input forces due to arbitrary gust profiles via convolu...