Air flow around the rotating pirn and power loss

Large eddy simulation of flow around a reverse rotating propeller

This paper studies the flow around a propeller rotating in the reverse direction in a uniform free stream. Large eddy simulation is used to study this massively separated flow at a Reynolds number of 480 000 and advance ratios J = −0.5, −0.7 and −1.0. Simulations are performed on two grids; statistics of the loads and velocity field around the propeller show encouraging agreement between the tw...

Laminar and Turbulent Aeroheating Predictions around Multi -Cone Configurations in Hypersonic Equilibrium - Air Flow

Kinetic Simulation of Air Flow Around Hollow Cylinder Flare Configuration

Kinetic approach was used to study the shock wave/boundary layer interaction in diatomic gases and gas mixtures. The effect of non-equilibrium processes on the steady state solution was studied.

Linear /Quadratic Programming Based Optimal Power Flow using Linear Power Flow and Absolute Loss Approximations

This paper presents a novel method to approximate the nonlinear AC optimal power flow (OPF) into tractable linear/ quadratic programming (LP/QP) based OPF problems that can be used for power system planning and operation. We derive a linear power flow approximation and include a convex reformulation of the power losses in the form of absolute value functions. We show three ways how we can incor...

Discrete vortex simulation of the separated flow around a rotating circular cylinder at high Reynolds number

The separated flow around a rotating circular cylinder is investigated by the discrete vortex method combined with the boundary layer theory. The Keller Box method is used to solve the laminar boundary layer in order to determine the separation points on the upper and the lower sides of the rotating circular cylinder. The nascent vortices are then introduced near the separation points. A discre...