RANS Simulations of Supercavity Flows

RANS Simulations of Neutral ABL and Wind

It is known that wind turbines actually operate in the lower part of the atmospheric 11 boundary layer (ABL), the modelling of this ABL flow is an important precondition for the 12 simulations of wind turbine wakes. So, the capabilities of various inlet boundary conditions with 13 related modelling methodologies in constructing equilibrium ABL are validated firstly through 14 cases of a neutral...

‎Incompressible ‎smoothed particle hydrodynamics simulations on free surface flows

‎The water wave generation by wave paddle and a freely falling rigid body are examined by using an Incompressible Smoothed Particle Hydrodynamics (ISPH)‎. ‎In the current ISPH method‎, ‎the pressure was evaluated by solving pressure Poisson equation using a semi-implicit algorithm based on the projection scheme and the source term of pressure Poisson equation contains both of divergence free ve...

A Robust methodology for RANS Simulations of Highly Underexpanded Jets

This work aims at developing/combining numerical tools adapted to the simulation of the near field of highly underexpanded jets. An overview of the challenging numerical problems related to the complex shock/expansion structure encountered in these flows is given and an efficient and low-cost numerical strategy is proposed to overcome these, even on short computational domains. Based on common ...

Modeling unsteady turbulent flows over ripples: RANS versus LES

Rans Simulations of the Multiphase Flow around the Kcs Hullform

Traditionally the resistance of ships has been determined using towing tank experiments. Over the past two decades increased computational power has allowed numerical approaches to replicate and potentially start to replace towing tank experiments. This work investigates the quality of results that can be achieved using a commercial Reynolds Averaged Navier Stokes (RANS) flow solver, ANSYS CFX ...