2020.1
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 steady state flow simulations.
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Introduction of background knowledge regarding flow physics and CFD as well as detailed information about the use of AcuSolve and what specific options do.
This section includes validation cases containing flow conditions that will cause turbulence to form, requiring that a turbulence model is used.
In this application, AcuSolve is used to simulate the flow of water between concentric cylinders. 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 model cases containing thin annular gaps with flow induced by rotating walls.
In this application, AcuSolve is used to simulate the flow of mercury through a heated pipe. The AcuSolve results are compared with analytical results for pressure drop as described in White (1991), and with temperature changes as described in Incropera and DeWitt (1981). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with flow and imposed heat flux.
In this application, turbulent flow of air through a pipe is simulated. AcuSolve results are compared with experimental results as described in White (1991) and extracted from the Moody chart. The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model turbulent flow within pipes.
In this application, AcuSolve is used to simulate the viscous flow of water between a moving and a stationary plate with an imposed pressure gradient. AcuSolve results are compared with analytical results described in White (1991). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with imposed pressure gradients.
In this application, AcuSolve is used to simulate the flow of a highly viscous fluid between a moving and a stationary plate with an imposed pressure gradient and fixed temperature on the walls. AcuSolve results are compared with analytical results described in White (1991). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with imposed pressure gradients and viscous heating.
In this application, AcuSolve is used to simulate the flow of carbon dioxide (CO2) entering a pipe with a fixed velocity. AcuSolve results are compared with analytical results using the Hagen-Poiseuille approach as described in White (1991). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with constant flow velocity.
In this application, AcuSolve is used to simulate the transport of a passive scalar species in a fully developed laminar flow. AcuSolve results are compared with analytical results as described in Kays and Crawford (1993). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with species transport.
In this application, AcuSolve is used to simulate the flow of air in an enclosed cylindrical cavity with a rotating top and a fixed bottom. AcuSolve results are compared with experimental data adapted from Michelsen (1986). The close agreement of AcuSolve results with experimental data validates the ability of AcuSolve to model cases containing enclosed cavities with flow induced by rotating walls.
In this application, AcuSolve is used to simulate natural convection in the annular space between a heated inner pipe and an outer concentric pipe. AcuSolve results are compared with experimental results adapted from Kuehn and Goldstein (1978). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model cases with flow induced by natural convection.
In this application, AcuSolve is used to simulate laminar flow through a channel with two outlets forming a T-junction. AcuSolve results are compared with experimental results adapted from Hayes and others (1989). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model cases with multiple outlet paths.
In this application, AcuSolve is used to simulate turbulent flow through a channel with a lower wall shaped as a sinusoidal wave. AcuSolve results are compared with experimental results adapted from Kuzan (1986). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model cases with internal flow through a channel with wavy walls.
In this application, AcuSolve is used to simulate high Peclet number laminar flow through a channel with heated walls. AcuSolve results are compared with analytical results adapted from Hua and Pillai (2010). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases involving heat transfer to a moving fluid with a high Peclet number.
In this application, AcuSolve is used to simulate turbulent flow of air through and behind a two dimensional open-slit V. AcuSolve results are compared with experimental results adapted from Yang and Tsai (1993). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model the Coandă effect.
In this application, AcuSolve is used to simulate turbulent flow of a fluid over a NACA 0012 airfoil at 3 angles of attack, 0 degrees, 10 degrees, and 15 degrees. AcuSolve results are compared with experimental results for coefficients of pressure, lift, and drag reported by NASA. The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model external aerodynamics.
In this application, AcuSolve is used to simulate the natural convection of a turbulent flow field within a tall rectangular cavity. AcuSolve results are compared with experimental results as described in Betts and Bokhari (2000). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model cases with natural convection of turbulent flow within a tall cavity.
In this application, AcuSolve is used to simulate fluid flow and viscous heating in an annulus formed by concentric cylinders. AcuSolve results are compared with analytical results adapted from Bird and others (1960). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with viscous heating.
In this application, AcuSolve is used to simulate the separation of laminar flow over a blunt plate. AcuSolve results are compared with experimental results as described in J.C. Lane and R.I. Loehrke (1980). The close agreement of AcuSolve results with the experimental results validates the ability of AcuSolve to model cases with external laminar flow including separation.
In this application, AcuSolve is used to simulate the flow of mercury through a heated pipe. The AcuSolve results are compared with analytical results for pressure drop as described in White (1991), and with temperature changes as described in Incropera and DeWitt (1981). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with flow and imposed temperature constraints.
In this application, AcuSolve is used to simulate fully developed turbulent flow through an asymmetric diffuser with a divergent lower wall and a straight upper wall. AcuSolve results are compared with experimental results as described in Buice and Eaton (1996). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model cases with internal turbulent flow with flow separation and reattachment in an asymmetric diffuser.
In this application, AcuSolve is used to simulate fully developed turbulent flow through an axisymmetric diffuser with a divergent upper wall and a straight lower wall. AcuSolve results are compared with experimental results as described in Driver (1991) and on the NASA Langley Research Center Turbulence Modeling Resource webpage. The close agreement of AcuSolve results with experimental data and reference turbulence model performance validates the ability of AcuSolve to model cases with turbulent flow with separation due to an adverse pressure gradient within an axisymmetric geometry.
In this application, AcuSolve is used to simulate fully developed turbulent flow over a backward-facing step. AcuSolve results are compared with experimental results as described in Driver (1985) and on the NASA Langley Research Center Turbulence Modeling Resource web page. The close agreement of AcuSolve results with experimental data and reference turbulence model performance validates the ability of AcuSolve to model cases with turbulent flow that forms a shear layer, recirculates and then reattaches downstream of the divergent step.
In this application, AcuSolve is used to simulate fully developed turbulent flow through a channel containing a convex curve in the lower wall. AcuSolve results are compared with experimental results as described in Smits (1979) and on the NASA Langley Research Center Turbulence Modeling Resource webpage. The close agreement of AcuSolve results with experimental data and reference turbulence model performance validates the ability of AcuSolve to model cases with turbulent flow moving past a convex curved wall.
In this application, AcuSolve is used to simulate fully developed turbulent flow past a smooth hump on the lower wall of a flow domain. AcuSolve results are compared with experimental results as described in Seifert and Pack (2002) and on the NASA Langley Research Center Turbulence Modeling Resource web page. The close agreement of AcuSolve results with experimental data and reference turbulence model performance validates the ability of AcuSolve to model cases with turbulent flow moving past a wall protrusion resulting in flow separation and recovery.
In this application, AcuSolve is used to simulate the heat transfer due to radiation between concentric cylinders. The inner and outer cylinders are held at constant temperature and are defined to be radiation surfaces. AcuSolve results are compared with analytical results for temperature as described in Incropera (2006). The close agreement of AcuSolve results with analytical results validates the ability of AcuSolve to model cases with radiation heat transfer requiring view factor computation.
In this application, AcuSolve is used to simulate the mixing of two streams of fluid with different velocities moving past a splitter plate. AcuSolve results are compared with experimental results as described in J. Delville, et al. (1989). The close agreement of AcuSolve results with the experimental results validates the ability of AcuSolve to model mixing layers in the turbulent flow regime.
In this application, AcuSolve is used to solve for the flow field around a high lift airfoil with inflow conditions that lead to transitional flow on the pressure and suction side of the airfoil's surface. The moderate level of turbulence intensity at the inlet, low angle of attack and shape of the airfoil induce a transition to turbulent flow after a separation bubble develops on the surface. The coefficient of pressure is compared against experimental data from laboratory experiments.
In this application, AcuSolve is used to simulate turbulent flow through a strongly curved two dimensional 180 degree U-duct channel. AcuSolve results are compared with experimental results adapted from Rumsey et al. (2000). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model turbulent cases with strong curvature effects.
In this application, AcuSolve is used to solve for the flow and temperature field within a channel containing a heated wall. The wall is maintained at a constant temperature, inducing heat flux into the fluid, to predict the thermal law of the wall. The non dimensional temperature versus the non dimensional height above the wall is compared to the analytical correlation provided by Kader.
In this application, AcuSolve is used to simulate the heat transfer due to conduction and radiation between concentric spheres. The inside surface of the inner and the outside surface of the outer sphere are both held at constant temperature, while the gap between them radiates the heat from one sphere to the other.
In this application, AcuSolve is used to simulate the heat transfer due to radiation through a specular interface within an absorbing, emitting, but not scattering solid cube. One of the cube’s walls is modeled with an isotropic external radiation source while the remainder of the cube is held at fixed temperature conditions and modeled with pure radiation, neglecting the effects of conduction.
In this application, AcuSolve is used to simulate the wall heat flux due to nucleate boiling at a heated wall inside a rectangular channel with water flow. Results are compared with experimental heat flux measurements as reported by Steiner, et al. (2005). The close agreement of AcuSolve results with experimental results validates the ability of AcuSolve to model single phase nucleate boiling problems.
This section includes validation cases that do not require a turbulence model to be used.
This section includes validation cases that consider wall bounded simulation domains with internally constrained fluid medium.
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.
This section includes validation cases that consider time dependent flow simulations.
This section includes validation cases that consider the temperature of the flow by simulating one or modes of heat transfer.
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.
This section includes validation cases that consider multiple reference frame simulations to model the effects of simplified rotational motion.
This section includes validation cases that consider the mixing of multiple species by modeling the species advection/diffusion equation.
This section includes validation cases that consider the immiscible multiphase interaction of two fluids.
AcuSolve command descriptions and corresponding examples.
AcuSolve utility programs covering preparatory and post-processing as well as user-defined functions and utility scripts.
Customization of AcuSolve allowing you to customize certain capabilities of the solver.
Instruction of the mesh generation capability in AcuConsole, a GUI based pre-processor for AcuSolve.
Customization of AcuConsole allowing you to improve your particular workflow.
Commands of AcuTrace, a particle tracer that runs as a post-processor to or a co-processor with AcuSolve.
Instructions to define additional solution quantities of AcuTrace called user equations.
Usage of AcuFieldView, an OEM version of Intelligent Light’s FieldView post-processing software.
Instruction of the AcuReport tool, a standalone post-processor batch tool used to generate a report from an AcuSolve solution database.
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