FSI Analysis Services is at the core of what we do at our Singapore office at BroadTech Engineering.
We provide professional CAE Engineering Simulation Services to our clients in diverse industries to help them in their Engineering Challenges and provide answers.
Types of Fluid-Structure Interaction (FSI) that We Do
- FSI Modal Analysis
- FSI Analysis using Abaqus
- FSI analysis using Ansys
Featured FSI Analysis Case Studies
Numerical study of free surface flow based on smoothed particle hydrodynamics (SPH) method
The objective of this CFD research and Consultancy
Project is to develop a meshfree CFD solver that adapts for the flows with free surface especially large deformation of a free surface. A parallel, multi-phase SPH code for numerical simulation of the flow field is developed.
An improved boundary treatment approach based on coupled boundary approach is proposed as part of our CFD Consulting Services
so that the pressure of boundary particles is more accuracy and the simulation results of the flow field using the improved approach are better than that of the original approach. A non-reflection boundary treatment approach is proposed.
The SPH code is adopted to investigate the water entry of a solid body. The parallelized one-phase and two-phase SPH codes are adopted to simulate the whole process of a wedge entering water respectively. The comparison of the numerical results of the one-phase code and two-phase code is analyzed as part of the CFD Services
scope of work.
Finally, the computational Fluid Analysis
results of the two-phase code are verified by our experimental data. The different type of validation cases shows that the developed SPH code is quite robust and suitable for the simulation of the flow field with the interface or free surface.
Development of Shock-capturing technique for a discontinuous FEM method (HDG)
A novel shock-capturing technique for a discontinuous FEM method (HDG) is developed for an in-house code.
The strategy is developed for steady convection-diffusion problems and compressible Navier-Stokes equations of CFD Analysis
Simulation. The HDG local problem is modified as part of our CFD Analysis Services
to account for the discontinuous approximation inside these elements.
DG numerical fluxes are considered on the inter-sub-cells boundaries leading to a stabilized formulation, diminishing the oscillations in the vicinity of sharp fronts and shocks.
As a result, the CFD Simulation
method can capture shocks within large high-order elements. Numerical examples, for convection-diffusion and compressible Navier-Stokes equations (laminar flow around NACA airfoil), show that the proposed method stabilizes the HDG solution in the presence of shocks and sharp fronts, with no additional degrees of freedom, preserving the compact stencil and computational efficiency of HDG methods. (Page 4 of the portfolio)
Flow Around a Rectangle (used to learn OpenFOAM CFD Software
) to access the effect of AR on wind circulation around the body. Several RANS models were used also in the Fluid Dynamic Analysis
to see how circulation bubbles are predicted. Aerodynamics of a Rotating Wheel on the Ground.
The two approaches RANS and DES are used comparing them at the same computational time. Moreover, a high y+ value was used. This could be strange especially for DES usage. But the DES experiments the same lead to improvements towards experimental data, apart from an obvious more detailed wake pattern description.
External flow FSI Analysis on subsonic target drone:
Skills Used: ICEM CFD, ANSYS Fluent, CFD Post and MS Office
– The external aerodynamic analysis is performed by our CFD Consultant
on target drone with the tow in stowed and deployed position
– Geometry cleaning and meshing are performed using ICEM CFD and CFD Flow Analysis
simulation is performed using ANSYS Fluent
– The CFD Flow Simulation
results are post-processed using CFD Post and they are compared and correlated for stowed and deployed positions
– The pressure distribution on the wall surfaces are provided in NASTRAN format for further Flow Simulation
– Static stability study of 4 fins and 6 fins configurations of tow target are also performed using CFD Simulation
Bleed valve FSI analysis of ETGA helicopter:
BroadTech Engineering was appointed as the CFD Company
for performing the CFD consulting
work for the analysis of the ETGA helicopter Bleed valve analysis
Skills Used: ANSYS SpaceClaim, ANSA, ANSYS Fluent, CFD Post, MS Office, and Linux
– The external aerodynamic analysis is performed by our CFD Engineer
by considering bleed valve flow and rotor momentum
– Geometry cleanup and fluid volume extraction is performed using SpaceClaim
– The CFD Fluid Flow Analysis
simulations are performed as part of the CFD Consultancy
Project for hover and cruise conditions with different bleed valve angles and scoop orientations
– Steady-State analysis is carried out with Realizable K-ε turbulence model and rotor effects are applied using UDF in Fluent
CFD FSI Analysis Simulation of Vehicle Aerodynamics
Mahindra and Mahindra – Vehicle aerodynamic design improvement using RBF morph.
– Help M&M in the design optimization process of their brand new compact SUV models
– Used experience from previous many such CFD design
studies and carried out shape optimization within constraints customer has.
– Also showed the use of adjoint calculation to get insights a of where to change and how much to change and how to change the design
– Customers of the Fluid Dynamic Company
were quite happy with the results from the CFD Modeling
Simulation and incorporated the efficient process in their design optimization process.