![]() Important factor which leads to boundary layer separation is an adverse pressure Surface of the object thus leading to formation of eddies and vortices in the wake. Boundary Layer Separationīoundary layer separation is defined as the detachment of the boundary layer from the This propertyĪllows a turbulent boundary layer to be attached to the object surface longer. The changes in the free stream pressure compared to a laminar boundary layer. The wall, so it can withstand adverse pressure gradient longer and is less easily driven by Temperatures into close contact with each other and the heat transfer comes moreĪnother consequence of mixing is that a turbulent boundary layer has higher momentum near The presence of eddies brings fluid particles at different In addition heat transfer rates are higher for a Of velocity resulting in a larger shear stress and higher skin friction drag at the wallĬompared to a laminar boundary layer. Laminar sublayer is termed as the Buffer Zone.Īs a consequence of intense mixing, a turbulent boundary layer has a much steeper gradient These layers blend into each other and the blending region between the inner layer and Complete Boundary Layer Profile (Laminar and Turbulent) The shear stress in this layer is dominated by molecularįigure 5. Laminar or viscous sublayer: This layer is attached to the wall where the no slipĬondition is applied.Inner layer: This layer has turbulent mixing as the dominant physics.Outer layer: This layer is sensitive to the properties of the external flow.The velocity profile for a turbulent boundary layer is quite different from a laminarīoundary layer. Instruction of the AcuReport tool, a standalone post-processor batch tool used to generate a report from an AcuSolve solution database. Usage of AcuFieldView, an OEM version of Intelligent Light’s FieldView post-processing software. Instructions to define additional solution quantities of AcuTrace called user equations. Instruction of the mesh generation capability in AcuConsole, a GUI based pre-processor for AcuSolve.Ĭustomization of AcuConsole allowing you to improve your particular workflow.Ĭommands of AcuTrace, a particle tracer that runs as a post-processor to or a co-processor with AcuSolve. This section on AcuSolve solver features covers the description of various solver features available in AcuSolve such as heat transfer, fluid structure interaction and turbulence modeling.Ĭollection of AcuSolve simulation cases for which results are compared against analytical or experimental results to demonstrate the accuracyĪcuSolve command descriptions and corresponding examples.ĪcuSolve utility programs covering preparatory and post-processing as well as user-defined functions and utility scripts.Ĭustomization of AcuSolve allowing you to customize certain capabilities of the solver. AcuSolve Solver Features (CFD Theory for AcuSolve).Techniques, temporal discretization and solution methods. This section on numerical approximation techniques covers topics, which describe the numerical modeling of the fluid flowĮquations on a computational domain, such as spatial discretization using finite difference, finite element and finite volume Modeling of turbulence with brief descriptions of commonly used turbulence models. This section on turbulence covers the topics describing the physics of turbulence and turbulent flow. This section covers concepts such as boundary layer type, flow, separation and transition. This section describes the simplification of the governing equations to various flow models by assumptions on time dependence, Simplification of Governing Equations (Different Types of Flow Models).This section describes the concepts of similitude and non-dimensional numbers and their importance in fluid mechanics. This section describes the definition and formulation of the equations governing the conservations of mass, momentum andĮnergy in a fluid flow and obtaining a closed form solution from these equations. This section introduces the concept of a continuum medium. ![]() Numbers, different types of flow models and boundary layer theory. The concept of continuum, the governing equations of a fluid flow, definition of similitude and importance of non-dimensional This section on basics of fluid mechanics covers topics describing the fundamental concepts of fluid mechanics, such as This section on mathematical background covers the various notations and operators used to formulate and define the equations Introduction of background knowledge regarding flow physics and CFD as well as detailed information about the use of AcuSolve and what specific options do. ![]() AcuSolve is a leading general purpose CFD solver that is capable of solving the most demanding industrial and scientific applications.ĭiscover AcuSolve functionality with interactive tutorials.
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