Introduction of background knowledge regarding flow physics and CFD as well as detailed information about the use of AcuSolve and what specific options do.
Collection of AcuSolve simulation cases for which results are compared against analytical or experimental results to demonstrate the accuracy
of AcuSolve results.
This section includes validation cases that consider unbounded simulation domains where external flow is present over
solid bodies, leading to free boundary layer development.
This section includes validation cases containing conditions producing laminar to turbulent flow that are simulated
with a turbulence transition model.
In this application, AcuSolve is used to simulate two dimensional, laminar flow over a cylinder to predict separation of flow from the cylinder
surface and the flow in the wake area. AcuSolve results are compared with experimental results as described in Tritton (1959). The close agreement of
AcuSolve results with experimental results validates the ability of AcuSolve to model cases with unsteady oscillating vortex streets.
In this application, AcuSolve is used to simulate pressure and temperature inside an actuating piston using the ideal gas relationship and
fully defined mesh motion. AcuSolve results are compared with analytical results as described in Moran and Shapiro (2000). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with material properties defined by the ideal gas law subjected to significant mesh distortion.
In this application, AcuSolve is used to solve for the flow field within a rotating cavity with the top of the cavity free to move as if it was
exposed to air. The height of the free surface is determined and compared against the analytical solution for the
same rotational velocity under the standard gravitational force.
In this application, AcuSolve is used to simulate the fluid-structure interaction of a fluid moving over a cylinder/plate assembly. AcuSolve results are compared with experimental results as described in Gomes and Lienhart (2009). The close agreement of
AcuSolve results with the experimental results validates the ability of AcuSolve to model cases in which the fluid forces lead to structural motions.
In this application, AcuSolve is used to simulate the flow of air between concentric cylinders that is initiated by the rotation of the solid
inner cylinder. The outer cylinder is held stationary while the inner cylinder rotates with a constant speed. AcuSolve results are compared with analytical results as described in White (1991). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to maintain a continuous velocity across a non-conformal guide surface interface.
In this application, AcuSolve is used to simulate water and the time-dependent interface of air-water within a tank subject to a prescribed sloshing
motion. AcuSolve results are compared with experimental pressure measurements as reported by Tankaka, et al. (2000) and Rhee (2005).
The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model multiphase flow problems with user-defined motion.
In this application, AcuSolve is used to simulate the changes in wall temperature due to two-phase nucleate boiling at the heated walls of a pipe
with water flowing through it. AcuSolve results are compared with experimental results adapted from Koncar and others (2015). The close agreement of
AcuSolve results with experimental results validates the ability of AcuSolve to model two-phase nucleate boiling problems.
In this application, AcuSolve is used to simulate the high-speed turbulent flow in a converging and then diverging nozzle. The flow within the
nozzle enters as subsonic, reaches sonic at the throat and shortly after develops a normal shock. AcuSolve results are compared with experimental results adapted from Bogar and Sajben (1983). The close agreement of AcuSolve results to experimental measurements validates the ability of AcuSolve to simulate internal supersonic flows where normal shocks are present.
This section includes validation cases that consider time dependent motion within the domain, requiring that the mesh
movement be modeled with a differential equation, a fully defined mesh motion or by interpolated mesh motion.
Collection of AcuSolve simulation cases for which results are compared against analytical or experimental results to demonstrate the accuracy
of AcuSolve results.
This section includes validation cases that consider time dependent flow
simulations.
Oscillating Laminar Flow Around a Circular Cylinder
In this application, AcuSolve is used to simulate two dimensional, laminar flow over a cylinder to predict separation of flow from the cylinder surface and the flow in the wake area. AcuSolve results are compared with experimental results as described in Tritton (1959). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model cases with unsteady oscillating vortex streets.
Ideal Gas Compression in an Actuating Piston
In this application, AcuSolve is used to simulate pressure and temperature inside an actuating piston using the ideal gas relationship and fully defined mesh motion. AcuSolve results are compared with analytical results as described in Moran and Shapiro (2000). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with material properties defined by the ideal gas law subjected to significant mesh distortion.
Laminar Free Surface Flow Inside a Rotating Cavity
In this application, AcuSolve is used to solve for the flow field within a rotating cavity with the top of the cavity free to move as if it was exposed to air. The height of the free surface is determined and compared against the analytical solution for the same rotational velocity under the standard gravitational force.
Turbulent Flow Over an Oscillating Rigid Body Assembly
In this application, AcuSolve is used to simulate the fluid-structure interaction of a fluid moving over a cylinder/plate assembly. AcuSolve results are compared with experimental results as described in Gomes and Lienhart (2009). The close agreement of AcuSolve results with the experimental results validates the ability of AcuSolve to model cases in which the fluid forces lead to structural motions.
Circumferential Flow in a Cylinder Induced by a Rotating Solid
In this application, AcuSolve is used to simulate the flow of air between concentric cylinders that is initiated by the rotation of the solid inner cylinder. The outer cylinder is held stationary while the inner cylinder rotates with a constant speed. AcuSolve results are compared with analytical results as described in White (1991). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to maintain a continuous velocity across a non-conformal guide surface interface.
Multiphase Flow Within a Sloshing Tank
In this application, AcuSolve is used to simulate water and the time-dependent interface of air-water within a tank subject to a prescribed sloshing motion. AcuSolve results are compared with experimental pressure measurements as reported by Tankaka, et al. (2000) and Rhee (2005). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model multiphase flow problems with user-defined motion.
Two-Phase Nucleate Boiling in a Cylindrical Pipe
In this application, AcuSolve is used to simulate the changes in wall temperature due to two-phase nucleate boiling at the heated walls of a pipe with water flowing through it. AcuSolve results are compared with experimental results adapted from Koncar and others (2015). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model two-phase nucleate boiling problems.
Supersonic Flow Through a Converging-Diverging Nozzle
In this application, AcuSolve is used to simulate the high-speed turbulent flow in a converging and then diverging nozzle. The flow within the nozzle enters as subsonic, reaches sonic at the throat and shortly after develops a normal shock. AcuSolve results are compared with experimental results adapted from Bogar and Sajben (1983). The close agreement of AcuSolve results to experimental measurements validates the ability of AcuSolve to simulate internal supersonic flows where normal shocks are present.