ABAQUS FSI TRIAL APPLICATIONS SUCH
ABAQUS FSI SOFTWARE FOR EXAMPLE

Abaqus Fsi Software For Example

Fully coupled thermal structural analysis with Abaqus.Abaqus Fsi Example SC TETRA PRODUCTS SOFTWARE CRADLE CO LTD. Fluid-Strucure Interaction (FSI) - By coupling a CFD solver and the FEA solver, the deformation. One application for the ABAQUS co-simulation technique is performing multidisciplinary analyses in which two or more distinct and coupled physical fields are modeled by different analysis software for example, fluid-structure interaction (FSI) simulations performed in conjunction with computational fluid dynamics analysis software.Abaqus Technology BriefTB-05-FSI-2 Revised: April 2007.

Many important problems involve some form of FSI, but the coupling effect is often ignored because of a lack of readily available solution technology. The interaction can be mechanical, thermal, or both. CAE CAE21 ORG SC Tetra Products Software Cradle Co Ltd May 8th, 2018 - SC Tetra is general purpose thermo fluid simulation software using hybrid mesh to represent theLecture 3 Conducting an FSI Simulation using Abaqus and STAR -CCM+ Workshop 1 Antilock Braking System (Abaqus + STAR -CCM +) Lecture 4 Classifying FSI Applications Workshop 2 Stead -State Flow in an Exhaust Manifold (Abaqus + STAR -CCM+) Lecture 5 Miscellaneous TopicsFluid Structure Interaction Analysis with Abaqus and FLUENTSummary Engineering problems that involve the coupled response of a flowing fluid and a deforming structure constitute a broad class referred to as fluid-structure interaction (FSI). 2015 SIMULIA REGIONAL USER MEETING KOREA.

Background A fluid-structure interaction (FSI) problem can be broadly defined as one in which the responses of a moving fluid and a structure are coupled. In this technology brief we present several problems from different industries that have been analyzed with the Abaqus and FLUENT FSI capability. The co-simulation capability, available beginning in Abaqus Version 6.5, can be used in a wide variety of applications such as thermal-stress prediction in exhaust manifolds, design of valves and rubber diaphragms that restrict fluid flow, micro-fluidics, in-vivo vascular flows, consumer goods design, and packaging applications. Have partnered to provide a coupled solution capability.

These problems can be solved sequentially by performing the CFD analysis first and then mapping the results to the FEM analysis. In the first category the interaction between the fluid and the structural fields is small. FSI problems fall under two broad categories. In the co-simulation approach the two techniques are used together in a synchronized fashion to exchange solution information between the two analysis tools.

Coupled analyses can be steady-state or transient, two-dimensional or three-dimensional, with unidirectional or bidirectional coupling of the subdomains. Uses dedicated tools (Abaqus and FLUENT) to solve the respective subdomain problems. Information is exchanged between the codes at the commonCo-simulation capability in Abaqus/Standardand Abaqus/Explicit for fluid-structure interaction applications. In this technique Abaqus determines the structural portion of the solution using FEM, and FLUENT determines the fluid portion of the solution using a finite volume method. FSI Solution Approach The Abaqus-FLUENT FSI capability uses a staggered approach to solve fluid-structure interaction problems.

The flap deforms due to the normal and viscous fluid forces of the moving air. In this analysis a flexible flap is placed in an air stream. Flexible Flap in an Airflow The following example illustrates the dynamic effects of airflow over a deformable structure. MpCCI provides for the transfer of film coefficients/heat fluxes/pressures from FLUENT to Abaqus and the transfer of temperature and structural position from Abaqus to FLUENT.* All images presented in this technology brief were generated in EnSight Gold from CEI.2 FSI Examples The capabilities of the co-simulation feature are discussed within the context of some representative analyses. The interface coupling between Abaqus and FLUENT is based on industry-standard scalable interprocess communication and mapping tools (MpCCI) and is provided by Fraunhofer SCAI. The advantage of this methodology is that it allows relatively independent setup of the fluid and structural subproblems using familiar general-purpose solution tools and it allows for the solution of a wide variety of FSI problems.

The simulation was performed using Abaqus/Explicit and the segregated implicit solver in FLUENT. Although this problem is academic in nature, it illustrates that the Abaqus-FLUENT FSI capability can be used to solve problems with strong fluid-structure interactions. The orange arrows represent fluid pathlines, and the contours of the fluid domain represent the fluid velocity. Figure 1 shows the deformation of the flap in a sequence of images.

Abaqus Fsi Trial Applications Such

The bimetallic strip deforms as it heats up under the influence of an upstream hot fluid. A bimetallic strip employs a mismatch of thermal expansion coefficients to induce structural deformation with temperature and is used in industrial applications such as antiscald shower heads, temperature sensors, flow limiters, and MEMS sensors. Bimetallic Strip This example illustrates fluid-structure interaction that involves coupled thermal-displacement interaction. The dynamic meshing capability in FLUENT is used to move the CFD mesh based on this interface coordinate information. Abaqus computes the current structural geometry and transfers the structural positions to FLUENT via MpCCI. FLUENT transfers the normal and viscous forces acting on the flap to Abaqus via the MpCCI interface.

The contours in the fluid domain show the velocity field, and the contours in the structural domain show the displacements. Specifically, three flow rates are considered, while all other design parameters, such as upstream fluid temperatures and structural properties, remain unchanged. Figure 2 shows the response of the bimetallic strip to varying flow rates. The film conditions at the structure-fluid interface are changing with time and can be obtained accurately with a coupled analysis. The fluid-structure interaction arises from the deforming structure affecting the fluid flow and heat transfer rate. This limits the flow of hot fluids downstream where high temperatures may be undesirable.

Most of the flow has been cut off for the highest flow rate case, while for the same time duration, the bimetallic strip has not deformed significantly to limit the flow in the slower moving fluid. Hence, at any given instant of time the strip in the low flow rate exhibits smaller deformations than in the higher flow rates. The rate of structural heating is proportional to the rate of the flow.

This interface temperature, along with assumed film conditions, is then used to predict stresses in the manifold. The long-standing approach for these problems has been to determine a steady-state temperature profile of the interface wall in a CFD code. In this case this coupling effect was insignificant and the wall geometry was not updated. Such displacements may also be passed back to FLUENT for cases where the thermal distortion of the structure significantly changes the shape of the flow domain. Abaqus further calculates the thermal stress and deformation of the exhaust manifold due to heating.

Antilock Braking System This example considers a representative ball valve used in an antilock braking system (ABS). The interface fluid pressures and the resultant positions are exchanged. This simulation uses the implicit dynamic procedure in Abaqus/Standard with the implicit solvers in FLUENT.