Advanced Fluid Structure Interaction
Helideck design
Helicopter landing on offshore vessels needs an aviation friendly wind condition. Often offshore facilities are constructed with blunt objects which generates turbulent wakes and may impair the helideck with high turbulence and a non-uniform wind field. An accurate modeling of turbulence and wind field above the helideck is required to evaluate the unavailability period of helicopter operations. Depending on the client requirement, URANS (Unsteady Reynolds averaged navier stokes), RSM ( Reynolds stress modeling) and LES (Large eddy simulation) can be modeled to evaluate the flying conditions above helideck. Structural response of helideck against wind loads can be performed with a nonlinear dynamic analysis.
Bridge design
Numerical modeling of turbulence and wind loads from real time measurement at wind site is a vital part of the bridge design. Our analysts have a good experience in synthesising the real time wind measurements and perform a flow analysis with a coupled structural dynamics. A large eddy simulation can be performed to quantify the spectral loads impacting the bridges and their structural response spectra.
Blast Response
Blast resistant design needs an accurate modeling of blast loads with a precise mapping of loads on the structural assemblies. Reflection of blast wave, suction effects, local buckling and nonlinear effects will be captured precisely with structural coupling both 1 way and 2 way. Blast energy absorption by the structural systems, projectiles, trajectories and the heat dissipation can be modelled for a reliable blast mitigation system. Both deflagration and detonation loads can be simulated and check the design integrity of the barriers and assets.
