FSI Analysis
FSI Analysis is at the core of what we do at our Singapore office at BroadTech Engineering.
Types of Fluid-Structure Interaction (FSI) that We Do
1. FSI Modal Analysis
2. FSI analysis using Abaqus
3. FSI analysis using Ansys
Featured FSI Analysis Case Studies
FSI Analysis of Shockwave Boundary Layer Interaction Over Hollow Cylinder/Flare
Objective: Evaluation of turbulence modeling for CFD and Euler flux schemes for Shockwave boundary layer interaction over hollow cylinder/flare
Methodology:
– Computational results from the fluid-structure interaction have been validated with experimental results available from CUBRC, USA (6 cases)
– Grid independence study: series of 10 grids generated in P3D format in C++ programming language
– 3 Euler FLux schemes, i.e., Roe Scheme, AUSM+ scheme, HLLE+ scheme have been compared for accuracy
– k – w Wilcox (2006) turbulence model has been assessed for a large hollow cylinder flare configuration for turbulent flow ranging from Mach 5 to 8 at hypersonic flight conditions
– 16 million node grid has been used for the multiphysics modeling and the final computations
– GASPex CFD solver from Aerosoft, Inc. has been utilized for multiphysics simulations
Outcome & Conclusion:
– the three Euler flux schemes predict the flow features within 1% accuracy of each other
– the peak surface pressure is consistently underpredicted (-3% to -30%) except in two cases out of six cases.
– the peak surface heat transfer is consistently over-predicted (29% to 74%).
– an unphysical spike in turbulent kinetic energy is observed 2-3 inches upstream of the reattachment location
– The k – w turbulence model overpredicts (about 2%) the size of the separation region for all cases which is an important factor to be taken into consideration while designing control surfaces for hypersonic vehicles
CFD FSI Analysis of 2D Airfoils
Objective: CFD Analysis of 2D Airfoils (NACA 0012 and NACA 6412) at different angle of attacks (AOA) for comparison of aerodynamic behavior of symmetric & asymmetric airfoils
Methodology
– Used empirical formula for x and y coordinates of NACA 4 digit airfoils to create the accurate contour of airfoil
– Utilized C-meshing in Ansys 14.0 for generating 1 million cell meshing
– STP conditions of the Turbulent Flow Simulation
– Used Fluent software for CFD FSI simulation at Reynold number 3.5 million. k-w SST turbulence model is used with three grid sequence levels for 2000 iterations
Outcome & Conclusion:
– Contours of density, pressure, temperature, Mach number were generated for each multiphase flow simulation
– Flat bottom aerofoils are more efficient with an aim to generate more lift instead of the symmetrical aerofoil.
– For same AOA, flat bottom aerofoil generates more lift compared to symmetrical aerofoil
– As AOA increases, flat bottom airfoil will generate more drag and lift compared to the symmetric airfoil. – Airfoil efficiency, i.e., lift to drag ratio, L/D.
At 0 AOA, L/D ratio for NACA 0012 and NACA 6412 are 0.01 and 292.29 respectively.
At +6 AOA, L/D ratio for NACA 0012 and NACA 6412 are 22.19 and 10.38 respectively. Hence, airfoils should be selected based upon their range of operations.
Overview
About Us
BroadTech Engineering is a Leading Engineering Simulation and Numerical Modelling Consultancy in Singapore.
We Help Our Clients Gain Valuable Insights to Optimize and Improve Product Performance, Reliability, and Efficiency.
We Help Our Clients Gain Valuable Insights to Optimize and Improve Product Performance, Reliability, and Efficiency.
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1. Powerful Simulation Software Tools
2. Simulation Consultants with Extensive Research & Professional Experience
3. Simulation projects Completed in a Timely and Cost-effective Manner
4. Proven Track Record
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Customers will be provided with fully customizable FSI simulation reports which outline the Methodology, in-depth analysis, and recommendations. This insight allows our clients to optimize performance and make informed engineering decisions in a scientific, proven manner.
If you are still interested in learning more about FSI Analysis and to see what it can do for you, Learn more what FSI Analysis can do for your project by calling us today at +6581822236 for a no obligation discussion of your needs.
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Alternatively, for quote request, simply email us your technical specifications & requirements to info@broadtechengineering.com